BRAKE CONTROL SYSTEM

F BRAKES
A
B
SECTION
BRAKE CONTROL SYSTEM
C
D
E
CONTENTS
TCS/ABS
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TENSIONER” .................................................................. 3
Precautions for Brake System .................................. 3
Precautions When Using CONSULT-II ..................... 3
CHECK POINTS FOR USING CONSULT-II ......... 3
Precautions for Brake Control .................................. 4
Precautions for CAN System ................................... 4
PREPARATION ........................................................... 5
Special Service Tool ................................................. 5
Commercial Service Tools ........................................ 5
SYSTEM DESCRIPTION ............................................ 6
System Diagram ....................................................... 6
ABS Function ........................................................... 6
EBD Function ........................................................... 6
TCS Function ........................................................... 6
Wheel Sensors ......................................................... 7
Fail-Safe Function .................................................... 7
ABS/EBD SYSTEM ............................................... 7
TCS SYSTEM ....................................................... 7
Hydraulic Circuit Diagram ........................................ 8
CAN COMMUNICATION ............................................ 9
System Description .................................................. 9
TROUBLE DIAGNOSIS ............................................ 10
How to Perform Trouble Diagnoses for Quick and
Accurate Repair ..................................................... 10
INTRODUCTION ................................................. 10
WORK FLOW .......................................................11
CLARIFY CONCERN .......................................... 12
EXAMPLE OF DIAGNOSIS SHEET ................... 12
Component Parts and Harness Connector Location... 13
Schematic .............................................................. 15
Wiring Diagram — TCS — ..................................... 16
Basic Inspection ..................................................... 20
BRAKE FLUID LEVEL, FLUID LEAK, AND
BRAKE PAD INSPECTION ................................. 20
POWER SYSTEM TERMINAL LOOSENESS
Revision: May 2006
AND BATTERY INSPECTION ............................. 20
ABS WARNING LAMP AND SLIP INDICATOR
LAMP INSPECTION ............................................ 20
Warning Lamp and Indicator Timing ....................... 20
Control Unit Input/Output Signal Standard ............. 21
REFERENCE VALUE FROM CONSULT-II ......... 21
CONSULT-II Function (ABS) .................................. 23
CONSULT-II START PROCEDURE .................... 23
SELF-DIAGNOSIS .............................................. 23
DATA MONITOR ................................................. 25
ACTIVE TEST ..................................................... 27
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC
ITEMS ........................................................................ 29
Wheel Sensor System Inspection ........................... 29
Engine System Inspection ...................................... 30
ABS/TCS Control Unit Inspection ........................... 31
Solenoid Valve System Inspection ......................... 31
Actuator Motor, Motor Relay, and Circuit Inspection... 32
Stop Lamp Switch System Inspection .................... 33
ABS/TCS Control Unit Power and Ground Systems
Inspection ............................................................... 34
CAN Communication System Inspection ................ 35
Component Inspection ............................................ 35
TCS OFF SWITCH .............................................. 35
TROUBLE DIAGNOSES FOR SYMPTOMS ............ 36
ABS Works Frequently ........................................... 36
Unexpected Pedal Action ....................................... 37
Long Stopping Distance .......................................... 38
ABS Does Not Work ............................................... 38
Pedal Vibration or ABS Operation Noise ................ 38
ABS Warning Lamp Does Not Come On When Ignition Switch Is Turned On ........................................ 39
ABS Warning Lamp Stays On When Ignition Switch
Is Turned On ........................................................... 39
Vehicle Jerks During TCS Activation ...................... 40
WHEEL SENSORS ................................................... 41
Removal and Installation ........................................ 41
REMOVAL ........................................................... 41
INSTALLATION ................................................... 41
BRC-1
2007 Maxima
BRC
G
H
I
J
K
L
M
SENSOR ROTOR ...................................................... 42
Removal and Installation ........................................ 42
REMOVAL ........................................................... 42
INSTALLATION .................................................... 42
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)... 43
Removal and Installation ........................................ 43
REMOVAL ........................................................... 43
INSTALLATION .................................................... 43
VDC/TCS/ABS
PRECAUTIONS ......................................................... 45
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TENSIONER” ................................................................. 45
Precautions for Brake System ................................ 45
Precautions When Using CONSULT-II ................... 45
CHECK POINTS FOR USING CONSULT-II ........ 45
Precautions for Brake Control ................................ 46
Precautions for CAN System .................................. 46
PREPARATION ......................................................... 48
Special Service Tool ............................................... 48
Commercial Service Tools ...................................... 48
SYSTEM DESCRIPTION .......................................... 49
System Components .............................................. 49
ABS Function .......................................................... 49
EBD Function ......................................................... 49
TCS Function .......................................................... 50
VDC Function ......................................................... 50
Wheel Sensors ....................................................... 51
Fail-Safe Function .................................................. 51
ABS/EBD SYSTEM ............................................. 51
VDC/TCS SYSTEM ............................................. 51
Hydraulic Circuit Diagram ....................................... 52
CAN COMMUNICATION ........................................... 53
System Description ................................................. 53
TROUBLE DIAGNOSIS ............................................ 54
How to Perform Trouble Diagnoses for Quick and
Accurate Repair ...................................................... 54
INTRODUCTION ................................................. 54
WORK FLOW ...................................................... 55
CLARIFY CONCERN .......................................... 56
EXAMPLE OF DIAGNOSIS SHEET .................... 56
Component Parts and Harness Connector Location... 57
Schematic ............................................................... 59
Wiring Diagram — VDC — ..................................... 60
Basic Inspection ..................................................... 66
BRAKE FLUID LEVEL, FLUID LEAK, AND
BRAKE PAD INSPECTION ................................. 66
POWER SYSTEM TERMINAL LOOSENESS
AND BATTERY INSPECTION ............................. 66
ABS WARNING LAMP, SLIP INDICATOR LAMP
AND VDC OFF INDICATOR LAMP INSPECTION... 66
Warning Lamp and Indicator Timing ....................... 67
Control Unit Input/Output Signal Standard .............. 67
Revision: May 2006
REFERENCE VALUE FROM CONSULT-II ..........67
CONSULT-II Function (ABS) ...................................70
CONSULT-II START PROCEDURE .....................70
SELF-DIAGNOSIS ...............................................70
DATA MONITOR ..................................................73
ACTIVE TEST ......................................................75
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC
ITEMS ........................................................................77
Wheel Sensor System Inspection ...........................77
Engine System Inspection ......................................78
ABS/TCS/VDC Control Unit Inspection ...................79
Steering Angle Sensor System Inspection ..............79
Yaw Rate/Side/Decel G Sensor System Inspection...81
Solenoid and VDC Change-Over Valve System
Inspection ................................................................82
Actuator Motor, Motor Relay, and Circuit Inspection...83
Stop Lamp Switch System Inspection .....................84
ABS/TCS/VDC Control Unit Power and Ground
Systems Inspection .................................................85
Brake Fluid Level Switch System Inspection ..........86
CAN Communication System Inspection ................87
Component Inspection ............................................87
VDC OFF SWITCH ..............................................87
TROUBLE DIAGNOSES FOR SYMPTOMS .............88
ABS Works Frequently ............................................88
Unexpected Pedal Action ........................................89
Long Stopping Distance ..........................................90
ABS Does Not Work ...............................................90
Pedal Vibration or ABS Operation Noise ................90
ABS Warning Lamp Does Not Come On When Ignition Switch Is Turned On .........................................91
ABS Warning Lamp Stays On When Ignition Switch
Is Turned On ...........................................................91
Vehicle Jerks During TCS/VDC Activation ..............92
ON-VEHICLE SERVICE ............................................93
Adjustment of Steering Angle Sensor Neutral Position ..........................................................................93
WHEEL SENSORS ...................................................94
Removal and Installation .........................................94
REMOVAL ............................................................94
INSTALLATION ....................................................94
SENSOR ROTOR ......................................................95
Removal and Installation .........................................95
REMOVAL ............................................................95
INSTALLATION ....................................................95
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY) ...96
Removal and Installation .........................................96
REMOVAL ............................................................96
INSTALLATION ....................................................96
STEERING ANGLE SENSOR ...................................98
Removal and Installation .........................................98
G SENSOR ................................................................99
Removal and Installation .........................................99
REMOVAL ............................................................99
INSTALLATION ....................................................99
BRC-2
2007 Maxima
PRECAUTIONS
[TCS/ABS]
PRECAUTIONS
PFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
A
EFS00637
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along B
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front C
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Manual.
D
WARNING:
●
To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSAN/INFINITI dealer.
E
●
Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
BRC
●
Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
G
Precautions for Brake System
EFS004FC
CAUTION:
●
Refer to MA-9, "RECOMMENDED FLUIDS AND LUBRICANTS" for recommended brake fluid.
●
Never reuse drained brake fluid.
●
Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted areas, wash it away with water immediately.
●
To clean or wash all parts of master cylinder and disc brake caliper, use clean brake fluid.
●
Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic
system.
●
Use flare nut wrench when removing and installing brake
tube.
●
If a brake fluid leak is found, the part must be disassembled
without fail. Then it has to be replaced with a new one if a
defect exists.
●
Turn the ignition switch OFF and remove the connector of
the ABS actuator and electric unit (control unit) or the battery terminal before performing the work.
●
Always torque brake lines when installing.
●
Burnish the brake contact surfaces after refinishing or
SBR686C
replacing rotors, after replacing pads, or if a soft pedal
occurs at very low mileage.
Refer to BR-28, "Brake Burnishing" (front disc brakes) or BR-35, "Brake Burnishing" (rear disc
brakes).
WARNING:
●
Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.
Precautions When Using CONSULT-II
EFS004FD
When connecting CONSULT-II to data link connector, connect them through CONSULT-II CONVERTER.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
CHECK POINTS FOR USING CONSULT-II
1.
Has CONSULT-II been used without connecting CONSULT-II CONVERTER on this vehicle?
● If YES, GO TO 2.
Revision: May 2006
BRC-3
2007 Maxima
H
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PRECAUTIONS
[TCS/ABS]
If NO, GO TO 5.
Is there any indication other than indications relating to CAN communication system in the self-diagnosis
results?
● If YES, GO TO 3.
● If NO, GO TO 4.
Based on self-diagnosis results unrelated to CAN communication, carry out the inspection.
Malfunctions may be detected in self-diagnosis depending on control units carrying out CAN communication. Therefor, erase the self-diagnosis results.
Diagnose CAN communication system. Refer to LAN-44, "TROUBLE DIAGNOSIS" .
●
2.
3.
4.
5.
Precautions for Brake Control
●
●
●
●
●
●
●
EFS004FE
During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.
Just after starting vehicle, the brake pedal may vibrate or a motor operating noise may be heard from
engine compartment. This is a normal status of operation check.
Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.
When an error is indicated by ABS or another warning lamp, collect all necessary information from customer (what symptoms are present under what conditions) and check for simple causes before starting
diagnosis. Besides electrical system inspection, check booster operation, brake fluid level, and fluid leaks.
If incorrect tire sizes or types are installed on the vehicle or brake pads are not Genuine NISSAN parts,
stopping distance or steering stability may deteriorate.
If there is a radio, antenna or related wiring near control module, ABS function may have a malfunction or
error.
If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness
pinches, open circuits or improper wiring.
Precautions for CAN System
●
●
●
●
EFS004FF
Do not apply voltage of 7.0V or higher to terminal to be measured.
Maximum open terminal voltage of tester in use must be less than 7.0V.
Before checking harnesses, turn ignition switch OFF and disconnect battery negative cable.
Area to be repaired must be soldered and wrapped with tape.
Make sure that fraying of twisted wire is within 110 mm (4.33 in).
PKIA0306E
●
Do not make a bypass connection to repaired area. (If the circuit
is bypassed, characteristics of twisted wire will be lost.)
PKIA0307E
Revision: May 2006
BRC-4
2007 Maxima
PREPARATION
[TCS/ABS]
PREPARATION
Special Service Tool
PFP:00002
A
EFS00632
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name
Description
B
(J-45741)
ABS active wheel sensor tester
Checking operation of ABS active wheel sensor
C
D
WFIA0101E
E
Commercial Service Tools
EFS00633
Tool name
Description
1. Flare nut crowfoot
2. Torque wrench
Removing and installing brake piping
a: 10mm (0.39 in)/12mm (0.47 in)
BRC
G
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S-NT360
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Revision: May 2006
BRC-5
2007 Maxima
SYSTEM DESCRIPTION
[TCS/ABS]
SYSTEM DESCRIPTION
System Diagram
PFP:00000
EFS004FJ
WFIA0445E
ABS Function
●
●
●
●
●
●
EFS004FK
The Anti-Lock Brake System detects wheel revolution while braking and improves handling stability during
sudden braking by electrically preventing wheel lockup. Maneuverability is also improved for avoiding
obstacles.
If the electrical system malfunctions, the Fail-Safe function is activated, the ABS becomes inoperative and
the ABS warning lamp turns on.
The electrical system can be diagnosed using CONSULT-II.
During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.
Just after starting the vehicle, the brake pedal may vibrate or a motor operating noise may be heard from
engine compartment. This is a normal status of operation check.
Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.
EBD Function
●
●
●
●
●
●
EFS004FL
Electronic Brake Distribution is a function that detects subtle slippages between the front and rear wheels
during braking, and it improves handling stability by electronically controlling the brake fluid pressure
which results in reduced rear wheel slippage.
If the electrical system malfunctions, the Fail-Safe function is activated, the EBD and ABS become inoperative, and the ABS warning lamp and BRAKE warning lamp are turned on.
The electrical system can be diagnosed using CONSULT-II.
During EBD operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.
Just after starting the vehicle, the brake pedal may vibrate or a motor operating noise may be heard from
engine compartment. This is a normal status of operation check.
Stopping distance may be longer than that of vehicles without EBD when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.
TCS Function
●
EFS004FM
Spinning of the drive wheels is detected by the ABS/TCS control unit using inputs from the wheel speed
sensors. If wheel spin occurs, the drive wheel right and left brake fluid pressure control and engine fuel cut
are conducted while the throttle value is restricted to reduce the engine torque and decrease the amount
of wheel spin. In addition, the throttle opening is controlled to achieve the optimum engine torque.
Revision: May 2006
BRC-6
2007 Maxima
SYSTEM DESCRIPTION
[TCS/ABS]
●
●
●
Depending on road condition, the vehicle may have a sluggish feel. This is normal, because optimum traction has the highest priority during TCS operation.
TCS may be activated during sudden vehicle acceleration, wide open throttle acceleration, sudden transmission shifts or when the vehicle is driven on a road with a varying surface friction coefficient.
The SLIP indicator lamp flashes to inform the driver of TCS operation.
Wheel Sensors
A
B
EFS004FN
C
The front sensor units consist of a gear-shaped sensor rotor and a
sensor element. The element contains a magnet around which a coil
is wound. The front wheel sensors are installed on the front of the
wheel knuckles. As the wheel rotates, the sensor generates a
square-wave signal. The frequency increases as the wheel speed
increases.
D
E
BRC
LBR333
The rear sensor units consist of wheel hubs with a series of internal
magnets and a sensor element. The rear wheel sensors are installed
on the inner side of the wheel knuckles. As the wheel rotates, the
sensor generates a square-wave signal. The frequency increases as
the wheel speed increases.
G
H
I
WFIA0033E
Fail-Safe Function
J
EFS004FO
CAUTION:
If the Fail-Safe function is activated, perform the Self Diagnosis for ABS/TCS system.
K
ABS/EBD SYSTEM
In case of an electrical malfunction with the ABS, the ABS warning lamp and SLIP indicator lamp will turn on.
In case of an electrical malfunction with the EBD system, the BRAKE warning lamp, ABS warning lamp and
SLIP indicator lamp will turn on.
The system will revert to one of the following conditions of the Fail-Safe function.
1. For ABS malfunction, only the EBD is operative and the condition of the vehicle is the same condition of
vehicles without ABS/TCS system.
2. For EBD malfunction, the EBD and ABS become inoperative, and the condition of the vehicle is the same
as the condition of vehicles without ABS/TCS or EBD system.
TCS SYSTEM
In case of TCS system malfunction, the SLIP indicator lamp is turned on and the condition of the vehicle is the
same as the condition of vehicles without TCS system. In case of an electrical malfunction with the TCS system, the ABS control continues to operate normally without TCS control.
Revision: May 2006
BRC-7
2007 Maxima
L
M
SYSTEM DESCRIPTION
[TCS/ABS]
Hydraulic Circuit Diagram
EFS004FP
PFIA0422E
Revision: May 2006
BRC-8
2007 Maxima
CAN COMMUNICATION
[TCS/ABS]
CAN COMMUNICATION
System Description
PFP:23710
A
EFS004FQ
Refer to LAN-4, "SYSTEM DESCRIPTION" .
B
C
D
E
BRC
G
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Revision: May 2006
BRC-9
2007 Maxima
TROUBLE DIAGNOSIS
[TCS/ABS]
TROUBLE DIAGNOSIS
How to Perform Trouble Diagnoses for Quick and Accurate Repair
PFP:00000
EFS004FR
INTRODUCTION
The ABS/TCS system has an electronic control unit to control major
functions. The control unit accepts input signals from sensors and
controls actuator operation. It is also important to check for conventional malfunctions such as air leaks in the booster or lines, lack of
brake fluid, or other malfunctions with the brake system.
It is much more difficult to diagnose a malfunction that occurs intermittently rather than continuously. Most intermittent malfunctions are
caused by poor electrical connections or wiring. In this case, careful
checking of suspicious circuits may help prevent the replacement of
good parts.
A visual check only may not find the cause of the malfunction, so a
road test should be performed.
Before undertaking actual checks, take just a few minutes to talk with
a customer who approaches with an ABS/TCS complaint. The customer is a very good source of information, especially for intermittent
malfunctions. Through the talks with the customer, find out what
symptoms are present and under what conditions they occur.
Start your diagnosis by looking for “conventional” malfunctions first.
This is one of the best ways to troubleshoot brake malfunctions on
an ABS/TCS equipped vehicle. Also check related Service Bulletins
for information.
SEF233G
SEF234G
Revision: May 2006
BRC-10
2007 Maxima
TROUBLE DIAGNOSIS
[TCS/ABS]
WORK FLOW
A
B
C
D
E
BRC
G
H
I
J
K
L
M
WFIA0532E
Revision: May 2006
BRC-11
2007 Maxima
TROUBLE DIAGNOSIS
[TCS/ABS]
CLARIFY CONCERN
●
●
●
A customer's description of a vehicle concern may vary depending on the individual. It is important to clarify the customer's concern.
Ask the customer about what symptoms are present under what
conditions. Use this information to reproduce the symptom while
driving.
It is also important to use the diagnosis sheet to understand
what type of trouble the customer is having.
SBR339B
EXAMPLE OF DIAGNOSIS SHEET
WFIA0097E
Revision: May 2006
BRC-12
2007 Maxima
TROUBLE DIAGNOSIS
[TCS/ABS]
Component Parts and Harness Connector Location
EFS004FS
A
B
C
D
E
BRC
G
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WFIA0487E
Revision: May 2006
BRC-13
2007 Maxima
TROUBLE DIAGNOSIS
[TCS/ABS]
1.
Rear wheel sensor RH B122
2.
ABS actuator and electric unit (con- 3.
trol unit) E125 (engine removed for
clarity)
Front wheel sensor RH E117
4.
Front wheel sensor LH E18
5.
TCS OFF switch M6
Combination meter M24
7.
Rear wheel sensor LH B123
Revision: May 2006
BRC-14
6.
2007 Maxima
TROUBLE DIAGNOSIS
[TCS/ABS]
Schematic
EFS004FT
A
B
C
D
E
BRC
G
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WFWA0423E
Revision: May 2006
BRC-15
2007 Maxima
TROUBLE DIAGNOSIS
[TCS/ABS]
Wiring Diagram — TCS —
EFS004FU
WFWA0424E
Revision: May 2006
BRC-16
2007 Maxima
TROUBLE DIAGNOSIS
[TCS/ABS]
A
B
C
D
E
BRC
G
H
I
J
K
L
M
WFWA0425E
Revision: May 2006
BRC-17
2007 Maxima
TROUBLE DIAGNOSIS
[TCS/ABS]
WFWA0426E
Revision: May 2006
BRC-18
2007 Maxima
TROUBLE DIAGNOSIS
[TCS/ABS]
A
B
C
D
E
BRC
G
H
I
J
K
L
M
WFWA0427E
Revision: May 2006
BRC-19
2007 Maxima
TROUBLE DIAGNOSIS
[TCS/ABS]
Basic Inspection
EFS004FV
BRAKE FLUID LEVEL, FLUID LEAK, AND BRAKE PAD INSPECTION
1.
2.
3.
Check fluid level in the brake fluid reservoir. If fluid level is low, add fluid.
Check the brake piping and around the ABS actuator and electric unit (control unit) for leaks. If there is
leaking or seeping fluid, check the following items.
● If ABS actuator and electric unit (control unit) connection is loose, tighten the piping to the specified
torque and recheck for leaks.
● If there is damage to the connection flare nut or ABS actuator and electric unit (control unit) screw,
replace the damaged part and recheck for leaks.
● When there is fluid leaking or seeping from a fluid connection, use a clean cloth to wipe off the fluid and
recheck for leaks. If fluid is still seeping out, replace the damaged part. If the fluid is leaking at the ABS
actuator and electric unit (control unit), replace the ABS actuator and electric unit (control unit) assembly.
CAUTION:
The ABS actuator and electric unit (control unit) cannot be disassembled and must be replaced
as an assembly.
Check the brake pads for excessive wear.
POWER SYSTEM TERMINAL LOOSENESS AND BATTERY INSPECTION
Make sure the battery positive cable, negative cable and ground connection are not loose. In addition, make
sure the battery is sufficiently charged.
ABS WARNING LAMP AND SLIP INDICATOR LAMP INSPECTION
1.
2.
3.
4.
Make sure ABS warning lamp and SLIP indicator lamp turn on for approximately 2 seconds when the ignition switch is turned ON. Check CAN communications. If there are no errors with the CAN communication
system, check combination meter. Refer to DI-5, "COMBINATION METERS" .
Make sure the lamps turn off approximately 2 seconds after the ignition switch is turned ON. If the lamp
does not turn off, conduct self-diagnosis.
Make sure ABS warning lamp and SLIP indicator lamp turn off approximately 2 seconds after the engine
is started. If ABS warning lamp and SLIP indicator lamp have not turned off 10 seconds after the engine
has been started, conduct self-diagnosis of the ABS actuator and electric unit (control unit).
After conducting the self-diagnosis, be sure to erase the error memory. Refer to BRC-23, "CONSULT-II
Function (ABS)" .
Warning Lamp and Indicator Timing
EFS004FW
×: ON
ABS
warning lamp
TCS OFF
indicator lamp
SLIP
indicator lamp
Remarks
When the ignition switch is OFF
–
–
–
–
After the ignition switch is turned
ON
For approx. 2 seconds
×
×
×
–
Ignition switch ON
Approx. 2 seconds later
–
–
–
–
When the TCS OFF switch turns
ON (TCS function OFF).
–
×
–
–
×
×
×
–
Condition
TCS/ABS malfunction
When the TCS is malfunctioning.
Revision: May 2006
–: OFF
×
×
–
When the TCS/ABS control unit
is malfunctioning (power supply or
ground malfunction).
–
×
×
–
BRC-20
2007 Maxima
TROUBLE DIAGNOSIS
[TCS/ABS]
Control Unit Input/Output Signal Standard
EFS004FX
REFERENCE VALUE FROM CONSULT-II
A
CAUTION:
The display shows the control unit calculation data, so a normal value might be displayed even in the
event the output circuit (harness) is open or short circuited.
B
Data monitor
Monitor item
FR RH SENSOR
FR LH SENSOR
RR RH SENSOR
RR LH SENSOR
ACCEL POS SIG
Display content
Open/close condition
of throttle valve (linked
with accelerator pedal).
With engine running
BATTERY VOLT
Battery voltage supplied to ABS actuator
and electric unit (control unit)
STOP LAMP SW
Brake pedal operation
ABS WARN LAMP
ABS warning lamp ON
condition (Note 2)
ACTUATOR RLY
SLIP LAMP
Operation status of
motor and motor relay
Actuator relay operation status
SLIP indicator lamp
status (Note 4)
FR LH IN SOL
FR LH OUT SOL
FR RH IN SOL
FR RH OUT SOL
RR RH IN SOL
RR RH OUT SOL
RR LH IN SOL
RR LH OUT SOL
Solenoid valve operation
TCS FAIL SIG
ABS FAIL SIG
EBD FAIL SIG
Fail signal status
Reference value in
normal operation
Vehicle stopped
0 [km/h (MPH)]
Vehicle running (Note 1)
Almost in accordance with speedometer display
(within ±10%)
Accelerator pedal not
depressed (ignition switch is
ON)
0%
Depress accelerator pedal
(ignition switch is ON)
0 to 100%
With engine stopped
0 rpm
Engine running
Almost in accordance with
tachometer display
Wheel speed
ENGINE SPEED
MOTOR RELAY
Condition
Note: Error inspection
checklist
BRC-29, "Wheel Sensor
System Inspection"
Ignition switch ON
10 to 16V
Brake pedal depressed
ON
Brake pedal not depressed
OFF
ABS warning lamp ON
ON
ABS warning lamp OFF
OFF
Ignition switch ON or engine
running (ABS not operated)
OFF
Ignition switch ON or engine
running (ABS operated)
ON
Vehicle stopped (Ignition
switch ON)
OFF
Vehicle stopped (Engine running)
ON
When SLIP indicator lamp is
ON
ON
When SLIP indicator lamp is
OFF
OFF
Actuator (solenoid) is active
(“ACTIVE TEST” with CONSULT-II) or actuator relay is
inactive (in fail-safe mode).
ON
When actuator (solenoid) is
not active and actuator relay is
active (ignition switch ON).
OFF
TCS fail
ABS fail
EBD fail
OFF
BRC-21
D
E
BRC-35, "CAN Communication System Inspection"
BRC
BRC-30, "Engine System
Inspection"
G
BRC-34, "ABS/TCS Control Unit Power and
Ground Systems Inspection"
H
BRC-33, "Stop Lamp
Switch System Inspection"
I
BRC-39, "ABS Warning
Lamp Does Not Come
On When Ignition Switch
Is Turned On"
J
K
BRC-32, "Actuator Motor,
Motor Relay, and Circuit
Inspection"
BRC-32, "Actuator Motor,
Motor Relay, and Circuit
Inspection"
DI-8, "Arrangement of
Combination Meter"
—
TCS system
ABS system
EBD system
Note 1: Confirm tire pressure is normal.
Revision: May 2006
C
2007 Maxima
L
M
TROUBLE DIAGNOSIS
[TCS/ABS]
Note 2: ON/OFF timing of ABS warning lamp
ON: For approximately 2 seconds after ignition switch is turned ON, or when a malfunction is detected.
OFF: Approximately 2 seconds after ignition switch is turned ON (when system is in normal operation) and TCS function is not activated.
Note 4: SLIP indicator lamp ON/OFF timing
ON: For approximately 2 seconds after ignition switch is turned ON, or when a malfunction is detected and TCS function is activated
while driving.
OFF: Approximately 2 seconds after ignition switch is turned ON (when system is in normal operation) and TCS function is not activated.
Flashing: TCS function is active during driving
Revision: May 2006
BRC-22
2007 Maxima
TROUBLE DIAGNOSIS
[TCS/ABS]
CONSULT-II Function (ABS)
EFS004FY
A
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
ABS diagnostic mode
WORK SUPPORT
SELF-DIAG RESULTS
DATA MONITOR
Description
Supports inspection and adjustments. Commands are transmitted to the ABS actuator and electric
unit (control unit) for setting the status suitable for required operation, input/output signals are
received from the ABS actuator and electric unit (control unit) and received data is displayed.
B
Displays ABS actuator and electric unit (control unit) self-diagnosis results.
C
Displays ABS actuator and electric unit (control unit) input/output data in real time.
CAN DIAG SUPPORT MNTR
The result of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TEST
Operation of electrical loads can be checked by sending drive signal to them.
FUNCTION TEST
ECU PART NUMBER
D
Conducted by CONSULT-II instead of a technician to determine whether each system is "OK" or
"NG".
E
ABS actuator and electric unit (control unit) part number can be read.
CONSULT-II START PROCEDURE
BRC
Refer to GI-37, "CONSULT-II Start Procedure" .
SELF-DIAGNOSIS
Description
G
If an error is detected in the system, the ABS warning lamp will turn on. In this case, perform self-diagnosis as
follows:
H
Operation Procedure
1.
2.
Turn ignition switch OFF.
Connect CONSULT-II and CONSULT-II CONVERTER to the data link connector.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
I
J
3.
4.
5.
Turn ignition switch ON.
Start engine and drive at approximately 30 km/h (19 MPH) for approximately 1 minute.
After stopping the vehicle, with the engine running, touch “START (NISSAN BASED VHCL)”, “ABS”,
“SELF-DIAG RESULTS” in order on the CONSULT-II screen.
CAUTION:
If “START (NISSAN BASED VHCL)” is touched immediately after starting the engine or turning on
the ignition switch, “ABS” might not be displayed in the SELECT SYSTEM screen. In this case,
repeat the operation from step 1.
6. The self-diagnostic results are displayed. (If necessary, the self-diagnostic results can be printed out by
touching “COPY”.)
● When “NO DTC IS DETECTED” is displayed, check the ABS warning lamp and SLIP indicator lamp.
7. Conduct the appropriate inspection from the display item list, and repair or replace the malfunctioning
component.
8. Start engine and drive at approximately 30 km/h (19 MPH) for approximately 1 minute.
CAUTION:
● When a wheel sensor “short-circuit” is detected, if the vehicle is not driven at 30 km/h (19 MPH)
for at least 1 minute, the ABS warning lamp will not turn off even if the malfunction is repaired.
9. Turn ignition switch OFF to prepare for erasing the memory.
10. Start the engine and touch “START (NISSAN BASED VHCL)”, “ABS”, “SELF-DIAG RESULTS”, “ERASE”
in order on the CONSULT-II screen to erase the error memory.
If “ABS” is not indicated, go to GI-39, "CONSULT-II Data Link Connector (DLC) Circuit" .
CAUTION:
If the error memory is not erased, re-conduct the operation from step 5.
11. For the final inspection, drive at approximately 30 km/h (19 MPH) for approximately 1 minute and confirm
that the ABS warning lamp and SLIP indicator lamp are off.
Revision: May 2006
BRC-23
2007 Maxima
K
L
M
TROUBLE DIAGNOSIS
[TCS/ABS]
Display Item List
Self-diagnostic item
Malfunction detecting condition
FR LH SENSOR 1
[C1104]
Circuit of front LH wheel sensor is open.
RR RH SENSOR 1
[C1101]
Circuit of rear RH wheel sensor is open.
FR RH SENSOR 1
[C1103]
Circuit of front RH wheel sensor is open.
RR LH SENSOR 1
[C1102]
Circuit of rear LH wheel sensor is open.
FR LH SENSOR 2
[C1108]
Circuit of front LH wheel sensor is shorted, or sensor power voltage is unusual. ABS actuator and electric unit (control unit) cannot identify sensor pulses, because of large gap between wheel
sensor and sensor rotor.
RR RH SENSOR 2
[C1105]
Circuit of rear RH wheel sensor is shorted, or sensor power voltage is unusual. ABS actuator and electric unit (control unit) cannot identify sensor pulses, because of large gap between wheel
sensor and sensor rotor.
FR RH SENSOR 2
[C1107]
Circuit of front RH wheel sensor is shorted, or sensor power voltage is unusual. ABS actuator and electric unit (control unit) cannot identify sensor pulses, because of large gap between wheel
sensor and sensor rotor.
RR LH SENSOR 2
[C1106]
Circuit of rear LH wheel sensor is shorted, or sensor power voltage is unusual. ABS actuator and electric unit (control unit) cannot identify sensor pulses, because of large gap between wheel
sensor and sensor rotor.
STOP LAMP SW 1
[C1116]
Stop lamp switch or circuit malfunction.
FR LH IN ABS SOL
[C1120]
Circuit of front LH IN ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
FR LH OUT ABS SOL
[C1121]
Circuit of front LH OUT ABS solenoid is open or shorted, or control line is open or shorted to power supply or ground.
RR RH IN ABS SOL
[C1126]
Circuit of rear RH IN ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
RR RH OUT ABS SOL
[C1127]
Circuit of rear RH OUT ABS solenoid is open or shorted, or control line is open or shorted to power supply or ground.
FR RH IN ABS SOL
[C1122]
Circuit of front RH IN ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
FR RH OUT ABS SOL
[C1123]
Circuit of front RH OUT ABS solenoid is open or shorted, or control line is open or shorted to power supply or ground.
RR LH IN ABS SOL
[C1124]
Circuit of rear LH IN ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
RR LH OUT ABS SOL
[C1125]
Circuit of rear LH OUT ABS solenoid is open or shorted, or control line is open or shorted to power supply or ground.
PUMP MOTOR (Note 3)
[C1111]
During actuator motor operation with ON, when actuator motor
turns OFF or when control line for actuator motor relay is open.
During actuator motor operation with OFF, when actuator motor
turns ON or when control line for relay is shorted to ground.
Check system
BRC-29, "Wheel Sensor
System Inspection"
(Note 1)
BRC-33, "Stop Lamp
Switch System Inspection"
BRC-31, "Solenoid Valve
System Inspection"
BRC-32, "Actuator
Motor, Motor Relay, and
Circuit Inspection"
BATTERY VOLTAGE
[ABNORMAL]
[C1109]
ABS actuator and electric unit (control unit) power voltage is too
low.
BRC-34, "ABS/TCS
Control Unit Power and
Ground Systems Inspection"
CONTROLLER FAILURE
[C1110]
Internal malfunction of ABS actuator and electric unit (control
unit) or wheel speed signal malfunction.
BRC-31, "ABS/TCS
Control Unit Inspection"
Revision: May 2006
BRC-24
2007 Maxima
TROUBLE DIAGNOSIS
[TCS/ABS]
Self-diagnostic item
CAN COMM CIRCUIT
[U1000]
Malfunction detecting condition
Check system
A
●
CAN communication line is open or shorted.
●
ABS actuator and electric unit (control unit) internal malfunction
●
Battery voltage for ECM is suddenly interrupted for approximately 0.5 seconds or more.
BRC-35, "CAN Communication System Inspection" (Note 2)
BR FLUID LEVEL LOW
[C1155]
Brake fluid level drops or circuit between ABS actuator and electric unit (control unit) and brake fluid level switch is open or
shorted.
DI-39, "WARNING
LAMPS"
ENGINE SIGNAL 1
[C1130]
ECM judges the communication between ABS/TCS control unit
and ECM is abnormal.
BRC-30, "Engine System Inspection"
ABS actuator or relay circuit malfunction.
BRC-32, "Actuator
Motor, Motor Relay, and
Circuit Inspection"
ASCD brake switch or circuit malfunction.
EC-524, "DTC P1572
ASCD BRAKE SWITCH"
ACTUATOR RLY
[C1140]
STOP LAMP SW 2
[C1176]
B
C
D
E
Note 1. If wheel sensor 2 for each wheel is indicated, check ABS actuator and electric unit (control unit) power BRC
supply voltage in addition to wheel sensor circuit check.
Note 2. If multiple malfunctions are detected including CAN communication line [U1000], perform diagnosis for
CAN communication line first.
G
DATA MONITOR
Operation Procedure
1.
2.
3.
4.
After turning OFF the ignition switch, connect CONSULT-II and CONSULT-II CONVERTER to the data link
connector.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
Touch “START (NISSAN BASED VHCL)”, “ABS”, “DATA MONITOR” in order on the CONSULT-II screen.
If “ABS” is not indicated, go to GI-39, "CONSULT-II Data Link Connector (DLC) Circuit" .
CAUTION:
When “START (NISSAN BASED VHCL)” is touched immediately after starting the engine or turning
on the ignition switch, “ABS” might not be displayed in the SELECT SYSTEM screen. In this case,
repeat the operation from step 2.
Return to the SELECT MONITOR ITEM screen, and touch “ECU INPUT SIGNALS”, “MAIN SIGNALS” or
“SELECTION FROM MENU”. Refer to the following information.
When “START” is touched, the data monitor screen is displayed.
H
I
J
K
L
Display Item List
Item
(Unit)
M
Data monitor item selection
ECU INPUT
SIGNALS
MAIN
SIGNALS
SELECTION
FROM MENU
Remarks
GEAR
×
×
×
This item is not used for this model.
"1" is always displayed.
FR RH SENSOR
(km/h, MPH)
×
×
×
Wheel speed calculated by front
RH wheel sensor signal is displayed.
FR LH SENSOR
(km/h, MPH)
×
×
×
Wheel speed calculated by front LH
wheel sensor signal is displayed.
RR RH SENSOR
(km/h, MPH)
×
×
×
Wheel speed calculated by rear RH
wheel sensor signal is displayed.
RR LH SENSOR
(km/h, MPH)
×
×
×
Wheel speed calculated by rear LH
wheel sensor signal is displayed.
BATTERY VOLT
(V)
×
×
×
Voltage supplied to ABS actuator
and electric unit (control unit) is displayed.
Revision: May 2006
BRC-25
2007 Maxima
TROUBLE DIAGNOSIS
[TCS/ABS]
Item
(Unit)
Data monitor item selection
Remarks
ECU INPUT
SIGNALS
MAIN
SIGNALS
SELECTION
FROM MENU
ACCEL POS SIG
(%)
×
–
×
Throttle valve open/close status
judged by LAN communication signal is displayed.
ENGINE SPEED
(rpm)
×
×
×
Engine speed judged by LAN communication signal is displayed.
STOP LAMP SW
(ON/OFF)
×
×
×
Stop lamp switch (ON/OFF) status
is displayed.
ABS WARN LAMP
(ON/OFF)
–
×
×
ABS warning lamp (ON/OFF) status
is displayed.
EBD WARN LAMP
(ON/OFF)
–
–
×
BRAKE warning lamp (ON/OFF)
status is displayed.
SLIP LAMP
(ON/OFF)
–
×
×
SLIP indicator lamp (ON/OFF) status is displayed.
FR LH IN SOL
(ON/OFF)
–
×
×
Front LH IN ABS solenoid (ON/
OFF) status is displayed.
FR LH OUT SOL
(ON/OFF)
–
×
×
Front LH OUT ABS solenoid (ON/
OFF) status is displayed.
RR RH IN SOL
(ON/OFF)
–
×
×
Rear RH IN ABS solenoid (ON/
OFF) status is displayed.
RR RH OUT SOL
(ON/OFF)
–
×
×
Rear RH OUT ABS solenoid (ON/
OFF) status is displayed.
FR RH IN SOL
(ON/OFF)
–
×
×
Front RH IN ABS solenoid (ON/
OFF) status is displayed.
FR RH OUT SOL
(ON/OFF)
–
×
×
Front RH OUT ABS solenoid (ON/
OFF) status is displayed.
RR LH IN SOL
(ON/OFF)
–
×
×
Rear LH IN ABS solenoid (ON/
OFF) status is displayed.
RR LH OUT SOL
(ON/OFF)
–
×
×
Rear LH OUT ABS solenoid (ON/
OFF) status is displayed.
OFF LAMP
(ON/OFF)
–
×
×
OFF Lamp (ON/OFF) status is displayed.
OFF SW
(ON/OFF)
×
×
×
TCS OFF switch (ON/OFF) status
is displayed.
MOTOR RELAY
(ON/OFF)
–
×
×
ABS motor relay signal (ON/OFF)
status is displayed.
ACTUATOR RLY
(ON/OFF)
–
×
×
ABS actuator relay signal (ON/
OFF) status is displayed.
TCS FAIL SIG
(ON/OFF)
–
–
×
TCS fail signal (ON/OFF) status is
displayed.
ABS FAIL SIG
(ON/OFF)
–
–
×
ABS fail signal (ON/OFF) status is
displayed.
EBD FAIL SIG
(ON/OFF)
–
–
×
EBD fail signal (ON/OFF) status is
displayed.
EBD SIGNAL
(ON/OFF)
–
–
×
EBD operation (ON/OFF) status is
displayed.
ABS SIGNAL
(ON/OFF)
–
–
×
ABS operation (ON/OFF) status is
displayed.
TCS SIGNAL
(ON/OFF)
–
–
×
TCS operation (ON/OFF) status is
displayed.
Revision: May 2006
BRC-26
2007 Maxima
TROUBLE DIAGNOSIS
[TCS/ABS]
Data monitor item selection
Item
(Unit)
A
Remarks
ECU INPUT
SIGNALS
MAIN
SIGNALS
SELECTION
FROM MENU
ASCD SIGNAL
–
–
×
ASCD (ON/OFF) status is displayed.
CRANKING SIG
–
–
×
Ignition switch START position signal input status is displayed.
B
C
×: Applicable
–: Not applicable
ACTIVE TEST
D
CAUTION:
●
Do not perform active test while driving.
●
Make sure to completely bleed air from the brake system.
●
The ABS and BRAKE warning lamps turn on during the active test.
E
Operation Procedure
1.
2.
3.
4.
5.
6.
Connect the CONSULT-II and CONSULT-II CONVERTER to the data link connector and start the engine. BRC
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
G
Touch “START (NISSAN BASED VHCL)” on the display screen.
Touch “ABS”.
H
If “ABS” is not indicated, go to GI-39, "CONSULT-II Data Link Connector (DLC) Circuit" .
Touch “ACTIVE TEST”.
The SELECT TEST ITEM screen is displayed.
I
Touch necessary test item.
J
K
LBR379
L
7.
8.
With the “MAIN SIGNALS” display selected, touch “START”.
The Active Test screen will be displayed, so conduct the following test.
M
Solenoid Valve Operation Chart
ABS solenoid valve
ABS solenoid valve (ACT)
Operation
UP
KEEP
DOWN
UP
ACTUATOR UP
ACTUATOR KEEP
FR RH SOL
FR RH ABS SOLENOID (ACT)
FR RH IN SOL
OFF
ON
ON
OFF
OFF
OFF
FR RH OUT SOL
OFF
OFF
ON*
OFF
OFF
OFF
FR LH SOL
FR LH ABS SOLENOID (ACT)
FR LH IN SOL
OFF
ON
ON
OFF
OFF
OFF
FR LH OUT SOL
OFF
OFF
ON*
OFF
OFF
OFF
RR RH SOL
RR RH ABS SOLENOID (ACT)
RR RH IN SOL
OFF
ON
ON
OFF
OFF
OFF
RR RH OUT SOL
OFF
OFF
ON*
OFF
OFF
OFF
RR LH SOL
RR LH ABS SOLENOID (ACT)
RR LH IN SOL
OFF
ON
ON
OFF
OFF
OFF
RR LH OUT SOL
OFF
OFF
ON*
OFF
OFF
OFF
*: ON for 1 to 2 seconds after the touch, and then OFF
Revision: May 2006
BRC-27
2007 Maxima
TROUBLE DIAGNOSIS
[TCS/ABS]
NOTE:
●
If active test is performed with brake pedal depressed, pedal stroke may change. This is normal.
●
“TEST IS STOPPED” is displayed approximately 10 seconds after operation starts.
●
After “TEST IS STOPPED” is displayed, to perform test again, repeat Step 6.
ABS Motor
Touch “ON” and “OFF” on the screen. Check that ABS motor relay
operates as shown in table below.
ON
OFF
ABS actuator relay
Operation
ON
ON
ABS motor relay
ON
OFF
NOTE:
●
If active test is performed with brake pedal depressed, pedal
stroke may change. This is normal.
●
“TEST IS STOPPED” is displayed approximately 10 seconds
after operation starts.
Revision: May 2006
BRC-28
SFIA0593E
2007 Maxima
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
[TCS/ABS]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Wheel Sensor System Inspection
PFP:00000
A
EFS004FZ
INSPECTION PROCEDURE
1. CONNECTOR INSPECTION
B
Disconnect the ABS actuator and electric unit connector E125 and wheel sensor of malfunctioning code.
Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace as necessary.
C
D
2. CHECK WHEEL SENSOR OUTPUT SIGNAL
E
Disconnect connectors from wheel sensor of malfunction code No.
Connect ABS active wheel sensor tester (J-45741) to wheel sensor using appropriate adapter.
Turn on the ABS active wheel sensor tester power switch.
BRC
NOTE:
The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the
battery in the ABS active wheel sensor tester before proceeding.
4. Spin the wheel of the vehicle by hand and observe the red SENSOR indicator on the ABS active wheel G
sensor tester. The red SENSOR indicator should flash on and off to indicate an output signal.
NOTE:
If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and H
retest.
Does the ABS active wheel sensor tester detect a signal?
I
YES >> GO TO 3.
NO
>> GO TO 6.
1.
2.
3.
3. CHECK TIRES
J
Check for inflation pressure, wear and size of each tire.
Are tire pressure and size correct and is tire wear within specifications?
YES >> GO TO 4.
NO
>> Adjust tire pressure or replace tire(s).
K
4. CHECK WHEEL BEARINGS
L
Check wheel bearing axial end play. Refer to FAX-5, "FRONT WHEEL BEARING" or RAX-5, "REAR WHEEL
BEARING" .
OK or NG
OK
>> GO TO 5.
NG
>> Repair as necessary. Refer to FAX-5, "FRONT WHEEL BEARING" or RAX-5, "REAR WHEEL
BEARING" .
5. CHECK SENSOR ROTORS
Check sensor rotors for tooth damage.
OK or NG
OK
>> GO TO 6.
NG
>> Replace sensor rotor. Refer to BRC-42, "Removal and Installation" .
Revision: May 2006
BRC-29
2007 Maxima
M
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
[TCS/ABS]
6. CHECK WIRING HARNESS FOR SHORT CIRCUIT
1.
2.
Disconnect ABS actuator and electric unit (control unit) connector and wheel sensor connector of malfunction code No.
Check continuity between harness connector terminal and
ground.
Continuity should not exist.
OK or NG
OK
>> GO TO 7.
NG
>> Repair the circuit.
WFIA0105E
7. CHECK WIRING HARNESS FOR OPEN CIRCUIT
1.
2.
Disconnect ABS actuator and electric unit (control unit) connector and wheel sensor connector of malfunction code No.
Check continuity between both wiring harness ends.
Sensor
ABS actuator and
electric unit (control unit)
Connector
Terminal
Wheel sensor
Continuity
Connector
23
Front LH
27
1
E18
21
Front RH
12
E125
Rear LH
11
2
1
B123
15
Rear RH
2
1
E117
30
26
Terminal
Yes
2
1
B122
2
OK or NG
OK
>> Replace the ABS actuator and electric unit (control unit). Refer to BRC-43, "Removal and Installation" .
NG
>> Repair the circuit.
Engine System Inspection
EFS004G0
INSPECTION PROCEDURE
1. SELF-DIAGNOSIS RESULT CHECK
Check self-diagnosis results.
Self-diagnosis results
ENGINE SIGNAL 1
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO
>> Inspection End.
2. ENGINE SYSTEM INSPECTION
1. Perform ECM self-diagnosis and repair as necessary.
2. Perform ABS actuator and electric unit (control unit) self-diagnosis again.
OK or NG
OK
>> Inspection End.
NG
>> Repair as necessary.
Revision: May 2006
BRC-30
2007 Maxima
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
[TCS/ABS]
ABS/TCS Control Unit Inspection
EFS004G1
A
INSPECTION PROCEDURE
1. SELF-DIAGNOSIS RESULT CHECK
B
Check self-diagnosis results.
Self-diagnosis results
C
CONTROLLER FAILURE
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO
>> Inspection End.
D
2. CHECK WHEEL SENSORS
E
Check all wheel sensors. Refer to BRC-29, "Wheel Sensor System Inspection" .
OK or NG
OK
>> Replace ABS actuator and electric unit (control unit). Refer to BRC-43, "Removal and Installation" BRC
.
NG
>> Repair or replace as necessary.
Solenoid Valve System Inspection
EFS00687
G
INSPECTION PROCEDURE
1. SELF-DIAGNOSIS RESULT CHECK
H
Check self-diagnosis results.
Self-diagnosis results
I
FR LH IN ABS SOL
FR LH OUT ABS SOL
J
RR RH IN ABS SOL
RR RH OUT ABS SOL
FR RH IN ABS SOL
K
FR RH OUT ABS SOL
RR LH IN ABS SOL
L
RR LH OUT ABS SOL
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO
>> Inspection End.
M
2. CONNECTOR INSPECTION
1. Disconnect ABS actuator and electric unit (control unit) connector E125.
2. Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace as necessary.
Revision: May 2006
BRC-31
2007 Maxima
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
[TCS/ABS]
3.
1.
2.
CHECKING SOLENOID POWER AND GROUND
Disconnect ABS actuator and electric unit (control unit) connector E125.
Check voltage between ABS actuator and electric unit (control
unit) connector E125 and ground.
ABS actuator and electric unit
(control unit) connector E125
Body
ground
Measured
value
(Approx.)
2
—
12V
WFIA0488E
3.
Check resistance between ABS actuator and electric unit (control unit) connector E125 and body ground.
ABS actuator and electric unit
(control unit) connector E125
3
4
Body
ground
Measured
value Ω
(Approx.)
—
0Ω
OK or NG
OK
>> Perform self-diagnosis again. If the same results
appear, replace ABS actuator and electric unit (control
unit). Refer to BRC-96, "Removal and Installation" .
NG
>> Repair the circuit.
Actuator Motor, Motor Relay, and Circuit Inspection
WFIA0489E
EFS004G2
INSPECTION PROCEDURE
1. CHECKING SELF-DIAGNOSIS RESULTS
Check self-diagnosis results.
Self-diagnosis results
PUMP MOTOR
ACTUATOR RLY
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO
>> Inspection End.
2. CONNECTOR INSPECTION
Disconnect the ABS actuator and electric unit (control unit) connector E125.
Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace as necessary.
Revision: May 2006
BRC-32
2007 Maxima
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
[TCS/ABS]
3.
1.
CHECKING ABS MOTOR AND MOTOR RELAY POWER SYSTEM
A
Check voltage between ABS actuator and electric unit (control
unit) connector E125 and body ground.
ABS actuator and electric unit
(control unit) connector E125
Body
ground
Measured
value
(Approx.)
1
—
12V
B
C
D
WFIA0106E
2.
Check resistance between ABS actuator and electric unit (control unit) connector E125 and ground.
ABS actuator and electric unit
(control unit) connector E125
Body
ground
Measured
value
(Approx.)
4
—
0Ω
OK or NG
OK
>> Perform self-diagnosis again. If the same result
appears, replace ABS actuator and electric unit (control
unit). Refer to BRC-43, "Removal and Installation" .
NG
>> Repair the circuit.
Stop Lamp Switch System Inspection
E
BRC
G
WFIA0490E
EFS004G3
H
I
INSPECTION PROCEDURE
1. SELF-DIAGNOSIS RESULT CHECK
J
Check self-diagnosis results.
Self-diagnosis results
K
STOP LAMP SW 1
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO
>> Inspection End.
L
2. CONNECTOR INSPECTION
M
1.
Disconnect the ABS actuator and electric unit (control unit) connector E125 and stop lamp switch connector E38.
2. Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace as necessary.
Revision: May 2006
BRC-33
2007 Maxima
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
[TCS/ABS]
3. STOP LAMP SWITCH INSPECTION
Turn the ignition switch ON and check the voltage between the ABS
actuator and electric unit (control unit) connector E125 terminal 8
and ground.
8 - Ground
Brake pedal depressed
: Battery voltage
(approx. 12V)
Brake pedal not depressed : Approx. 0V
OK or NG
OK
>> Connect the connectors and conduct ABS actuator and
electric unit (control unit) self-diagnosis. Refer to BRC23, "SELF-DIAGNOSIS" .
NG
>> Repair the circuit.
WFIA0491E
ABS/TCS Control Unit Power and Ground Systems Inspection
EFS004G4
INSPECTION PROCEDURE
1. SELF-DIAGNOSIS RESULT CHECK
Check self-diagnosis results.
Self-diagnosis results
BATTERY VOLTAGE
Is the above displayed in the self-diagnosis item?
YES >> GO TO 2.
NO
>> Inspection End.
2. CONNECTOR INSPECTION
1.
Turn the ignition switch OFF and disconnect the ABS actuator and electric unit (control unit) connector
E125.
2. Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace as necessary.
3. ABS/TCS CONTROL UNIT POWER AND GROUND CIRCUIT INSPECTION
Measure the voltage and continuity between the ABS actuator and electric unit (control unit) connector E125
and ground.
Signal name
ABS actuator and electric unit
(control unit) connector E125
Power supply
16
Ground
3
Ground
Measured value
Battery voltage (Approx. 12V)
—
4
Continuity should exist.
OK or NG
OK
>> Check the battery for loose terminals, low voltage, etc. Repair as necessary.
NG
>> Repair the circuit.
Revision: May 2006
BRC-34
2007 Maxima
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
[TCS/ABS]
CAN Communication System Inspection
EFS004G5
A
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1.
Turn ignition switch OFF, disconnect the ABS actuator and electric unit (control unit) connector, and check
the terminals for deformation, disconnection, looseness, and so on. If there is a malfunction, repair or
replace the terminal.
2. Reconnect connector to perform self-diagnosis.
Is “CAN COMM CIRCUIT” displayed in the self-diagnosis display items?
YES >> Print out the self-diagnosis results, and refer to LAN-44, "TROUBLE DIAGNOSIS" .
NO
>> Connector terminal connection is loose, damaged, open, or shorted.
Component Inspection
B
C
D
EFS004M5
TCS OFF SWITCH
E
Check the continuity between terminals 1 and 2.
1 -2
: Continuity should exist when pushing the
switch.
Continuity should not exist when releasing
the switch.
BRC
G
H
WFIA0448E
I
J
K
L
M
Revision: May 2006
BRC-35
2007 Maxima
TROUBLE DIAGNOSES FOR SYMPTOMS
[TCS/ABS]
TROUBLE DIAGNOSES FOR SYMPTOMS
ABS Works Frequently
PFP:99999
EFS004G6
1. CHECK WARNING LAMP ACTIVATION
Make sure warning lamp remains off while driving.
OK or NG
OK
>> GO TO 2.
NG
>> Carry out self-diagnosis. Refer to BRC-23, "SELF-DIAGNOSIS" .
2. CHECK WHEEL SENSORS
Check the following.
●
Wheel sensor mounting for looseness
●
Wheel sensors for physical damage
●
Wheel sensor connectors for terminal damage or loose connections
OK or NG
OK
>> GO TO 3.
NG
>> Repair as necessary.
3. CHECK WHEEL BEARINGS
Check wheel bearing axial end play. Refer to FAX-5, "FRONT WHEEL BEARING" or RAX-5, "REAR WHEEL
BEARING" .
OK or NG
OK
>> GO TO 4.
NG
>> Repair as necessary.
4. CHECK BRAKE FLUID PRESSURE
Check brake fluid pressure distribution.
Refer to BR-36, "Inspection" .
Is brake fluid pressure distribution normal?
YES >> Inspection End.
NO
>> Perform Basic Inspection. Refer to BRC-20, "Basic Inspection" .
Revision: May 2006
BRC-36
2007 Maxima
TROUBLE DIAGNOSES FOR SYMPTOMS
[TCS/ABS]
Unexpected Pedal Action
EFS004G7
A
1. CHECK WARNING LAMP ACTIVATION
B
Make sure warning lamp remains off while driving.
OK or NG
OK
>> GO TO 2.
NG
>> Carry out self-diagnosis. Refer to BRC-23, "SELF-DIAGNOSIS" .
C
2. CHECK BRAKE PEDAL STROKE
D
Check brake pedal stroke.
Is pedal stroke excessive?
YES >> Perform Basic Inspection. Refer to BRC-20, "Basic
Inspection" .
NO
>> GO TO 3.
E
BRC
G
SBR540A
3. CHECK CONNECTOR AND BRAKING PERFORMANCE
H
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check brake effectiveness.
NOTE:
Driving the vehicle with the ABS actuator and electric unit (control unit) disconnected may induce DTCs in
electrical control units using CAN communication. After the inspection, clear all DTCs. Refer to LAN-4, "SYSTEM DESCRIPTION" .
OK or NG
OK
>> GO TO 4.
NG
>> Perform Basic Inspection. Refer to BRC-20, "Basic Inspection" .
I
J
K
4. CHECK WHEEL SENSORS
Check the following.
●
Wheel sensor mounting for looseness
●
Wheel sensors for physical damage
●
Wheel sensor connectors for terminal damage or loose connections
OK or NG
OK
>> Check ABS actuator and electric unit (control unit) pin terminals for damage and the connection of
harness connector. Reconnect ABS actuator and electric unit (control unit) harness connector.
Then retest.
NG
>> Repair as necessary.
Revision: May 2006
BRC-37
2007 Maxima
L
M
TROUBLE DIAGNOSES FOR SYMPTOMS
[TCS/ABS]
Long Stopping Distance
EFS004G8
1. CHECK BASE BRAKING SYSTEM PERFORMANCE
1. Disable ABS by disconnecting ABS actuator and electric unit (control unit) connector.
2. Drive vehicle and check to see if stopping distance is still long.
NOTE:
Driving the vehicle with the ABS actuator and electric unit (control unit) disconnected may induce DTCs in
electrical control units using CAN communication. After the inspection, clear all DTCs. Refer to LAN-4, "SYSTEM DESCRIPTION" .
OK or NG
OK
>> Go to BRC-36, "ABS Works Frequently" .
NG
>> Perform Basic Inspection. Refer to BRC-20, "Basic Inspection" .
NOTE:
Stopping distance may be longer than vehicles without ABS when road condition is slippery.
ABS Does Not Work
EFS004G9
CAUTION:
The ABS does not operate when the vehicle speed is 10 km/h (6 MPH) or less.
1. CHECK WARNING LAMP ACTIVATION
Turn ignition switch ON and check for warning lamp activation.
Warning lamp should activate for approximately 2 seconds after turning the ignition switch ON.
OK or NG
OK
>> Carry out self-diagnosis. Refer to BRC-23, "SELF-DIAGNOSIS" .
NG
>> Go to BRC-39, "ABS Warning Lamp Does Not Come On When Ignition Switch Is Turned On" .
●
Pedal Vibration or ABS Operation Noise
EFS004GA
NOTE:
During ABS activation, pedal vibration may be felt and a noise may be heard. This is normal and does not indicate a malfunction.
1. CHECK SYMPTOM
1. Apply brake.
2. Start engine.
Does the symptom occur only when engine is started?
YES >> Carry out self-diagnosis. Refer to BRC-23, "SELF-DIAGNOSIS" .
NO
>> GO TO 2.
2. RECHECK SYMPTOM
Does the symptom occur only when electrical equipment switches (such as headlamp) are turned on?
YES
NO
>> Check for radio, antenna or related wiring that is routed too close to the ABS actuator and electric
unit (control unit) and reroute as necessary.
>> Go to BRC-36, "ABS Works Frequently" .
Revision: May 2006
BRC-38
2007 Maxima
TROUBLE DIAGNOSES FOR SYMPTOMS
[TCS/ABS]
ABS Warning Lamp Does Not Come On When Ignition Switch Is Turned On
EFS004GB
A
1. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) FUSES
Check 30A fusible link g and 30A fusible link h for ABS actuator and electric unit (control unit). For fusible link
layout, refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK
>> GO TO 2.
NG
>> If fusible link is blown, be sure to eliminate cause of problem before replacing.
B
C
2. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY CIRCUITS
D
1.
2.
E
Disconnect ABS actuator and electric unit (control unit) connector.
Check voltage between ABS actuator and electric unit (control
unit) connector terminal 1 and ground and terminal 2 and
ground.
Does battery voltage exist?
YES >> GO TO 3.
NO
>> Repair harness or connectors between fusible link and
ABS actuator and electric unit (control unit).
BRC
G
WFIA0492E
H
3. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT
I
Check continuity between ABS actuator and electric unit (control
unit) connector terminal 3 and ground and terminal 4 and ground.
Does continuity exist?
YES >> Replace ABS actuator and electric unit (control unit).
Refer to BRC-43, "Removal and Installation" .
NO
>> Repair harness or connectors between ABS actuator
and electric unit (control unit) and ground.
J
K
WFIA0489E
ABS Warning Lamp Stays On When Ignition Switch Is Turned On
L
EFS004GC
M
1. CARRY OUT SELF-DIAGNOSIS
Carry out self-diagnosis. Refer to BRC-23, "SELF-DIAGNOSIS" .
Are malfunctions detected in self-diagnosis?
YES >> Refer to BRC-24, "Display Item List" .
NO
>> Refer to DI-39, "WARNING LAMPS" .
Revision: May 2006
BRC-39
2007 Maxima
TROUBLE DIAGNOSES FOR SYMPTOMS
[TCS/ABS]
Vehicle Jerks During TCS Activation
EFS004GD
1. ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
Perform ABS actuator and electric unit (control unit) self-diagnosis. Refer to BRC-23, "SELF-DIAGNOSIS" .
Are self-diagnosis result items displayed?
YES >> After checking and repairing the applicable item, perform the ABS actuator and electric unit (control unit) self-diagnosis again.
NO
>> GO TO 2.
2. ENGINE SPEED SIGNAL INSPECTION
Perform data monitor with CONSULT-II for the ABS actuator and electric unit (control unit).
Is the engine speed at idle 400 rpm or higher?
YES >> GO TO 4.
NO
>> GO TO 3.
3. ECM SELF-DIAGNOSIS
Perform ECM self-diagnosis.
Are self-diagnosis result items displayed?
YES >> After checking and repairing the applicable item, perform the ECM self-diagnosis again.
NO
>> GO TO 4.
4. TCM SELF-DIAGNOSIS
Perform TCM self-diagnosis.
Are self-diagnosis result items displayed?
YES >> After checking and repairing the applicable item, perform the TCM self-diagnosis again.
NO
>> GO TO 5.
5. CONNECTOR INSPECTION
Disconnect the ABS actuator and electric unit (control unit) connector and the ECM connectors and check the
terminals for deformation, disconnection, looseness or damage.
OK or NG
OK
>> GO TO 6.
NG
>> Repair or replace the connector terminal.
6. CAN COMMUNICATION INSPECTION
Check the CAN communication system. Refer to BRC-35, "CAN Communication System Inspection" .
OK or NG
OK
>> Inspection End.
NG
>> Reconnect the connectors, and perform ABS actuator and electric unit (control unit) self-diagnosis.
Revision: May 2006
BRC-40
2007 Maxima
WHEEL SENSORS
[TCS/ABS]
WHEEL SENSORS
Removal and Installation
PFP:47910
A
EFS0067Z
B
C
D
E
BRC
LFIA0078E
CAUTION:
●
Be careful not to damage wheel sensor edge and sensor rotor teeth.
●
When removing the front or rear wheel hub assembly, first remove the wheel sensor from the
assembly. Failure to do so may result in damage to the wheel sensor wires making the sensor
inoperative.
CAUTION:
●
Pull out the wheel sensor, being careful to turn it as little as possible. Do not pull on the wheel sensor harness.
●
Installation should be performed while paying attention to the following, and then tighten mounting bolts and nuts to the specified torque.
–
Check if foreign objects such as iron fragments are adhered to the pick-up part of the sensor or to
the inside of the hole for the wheel sensor, or if a foreign object is caught in the mating surface of
the sensor rotor. If something wrong is found, fix it and then install the wheel sensor.
G
H
I
J
K
REMOVAL
1.
2.
3.
Remove wheel and tire using power tool.
Disconnet wheel sensor harness connector and remove harness wire from attachment points.
Remove wheel sensor bolt and wheel sensor.
INSTALLATION
Installation is in the reverse order of removal.
●
When installing wheel and tire, refer to WT-7, "Tire Rotation" .
Revision: May 2006
BRC-41
2007 Maxima
L
M
SENSOR ROTOR
[TCS/ABS]
SENSOR ROTOR
Removal and Installation
PFP:47970
EFS004GF
REMOVAL
Front
1.
2.
Remove the front wheel hub. Refer to FAX-6, "Removal and Installation" .
Remove the sensor rotor from the drive shaft using a suitable
tool as shown.
LFIA0079E
Rear
The rear wheel sensor rotor is built into the rear wheel hub. For removal and installation procedure, refer to
RAX-6, "Removal and Installation" .
INSTALLATION
Front
Installation is in the reverse order of removal.
●
Install the sensor rotor using a wooden block and suitable tool
as shown.
●
Always replace sensor rotor with new one.
LFIA0083E
Rear
The rear wheel sensor rotor is built into the rear wheel hub. For removal and installation procedure, refer to
RAX-6, "Removal and Installation" .
Revision: May 2006
BRC-42
2007 Maxima
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)
[TCS/ABS]
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)
Removal and Installation
PFP:47660
A
EFS004GG
B
C
D
E
BRC
G
H
I
J
WFIA0104E
K
REMOVAL
1.
2.
3.
4.
5.
6.
7.
8.
Disconnect the battery negitive terminal.
Remove windshield wiper and linkage assembly. Refer to WW-21, "Removal" .
Drain brake fluid. Refer to BR-8, "Changing Brake Fluid" .
Discharge the A/C refrigerant. Refer to ATC-130, "HFC-134a (R-134a) Service Procedure" .
Disconnect and remove high-pressure and low-pressure A/C pipes to allow access to ABS actuator and
electric unit (control unit). Refer to ATC-132, "Components" .
Disconnect harness connectors from ABS actuator and electric unit (control unit).
Disconnect brake pipes, noting their location for installation.
Remove bolts and ABS actuator and electric unit (control unit).
INSTALLATION
CAUTION:
After installation of ABS actuator and electric unit (control unit), refill brake fluid. Then bleed air from
system. Refer to BR-8, "Bleeding Brake System" .
1. Position ABS actuator and electric unit (control unit) in vehicle.
2. Connect brake pipes and bolts temporarily.
3. Tighten bolts and brake pipes to specification. Refer to BR-9, "Hydraulic Circuit" .
4. Connect ABS actuator and electric unit (control unit) harness connectors.
5. Install and connect high-pressure and low-pressure A/C pipes. Refer to ATC-132, "Components" .
6. Install windshield wiper and linkage assembly. Refer to WW-21, "Installation" .
Revision: May 2006
BRC-43
2007 Maxima
L
M
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)
[TCS/ABS]
7.
8.
Connect battery negitive terminal.
Evacuate and recharge the A/C system. Refer to ATC-130, "HFC-134a (R-134a) Service Procedure" .
Revision: May 2006
BRC-44
2007 Maxima
PRECAUTIONS
[VDC/TCS/ABS]
PRECAUTIONS
PFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
A
EFS00638
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along B
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front C
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Manual.
D
WARNING:
●
To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSAN/INFINITI dealer.
E
●
Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
BRC
●
Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
G
Precautions for Brake System
EFS004GI
CAUTION:
●
Refer to MA-9, "RECOMMENDED FLUIDS AND LUBRICANTS" for recommended brake fluid.
●
Never reuse drained brake fluid.
●
Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted areas, wash it away with water immediately.
●
To clean or wash all parts of master cylinder and disc brake caliper, use clean brake fluid.
●
Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic
system.
●
Use flare nut wrench when removing and installing brake
tube.
●
If a brake fluid leak is found, the part must be disassembled
without fail. Then it has to be replaced with a new one if a
defect exists.
●
Turn the ignition switch OFF and remove the connector of
the ABS actuator and electric unit (control unit) or the battery terminal before performing the work.
●
Always torque brake lines when installing.
●
Burnish the brake contact surfaces after refinishing or
SBR686C
replacing rotors, after replacing pads, or if a soft pedal
occurs at very low mileage.
Refer to BR-28, "Brake Burnishing" (front disc brake) or BR-35, "Brake Burnishing" (rear disc
brake).
WARNING:
●
Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.
Precautions When Using CONSULT-II
EFS004GJ
When connecting CONSULT-II to data link connector, connect them through CONSULT-II CONVERTER.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
CHECK POINTS FOR USING CONSULT-II
1.
Has CONSULT-II been used without connecting CONSULT-II CONVERTER on this vehicle?
● If YES, GO TO 2.
Revision: May 2006
BRC-45
2007 Maxima
H
I
J
K
L
M
PRECAUTIONS
[VDC/TCS/ABS]
If NO, GO TO 5.
Is there any indication other than indications relating to CAN communication system in the self-diagnosis
results?
● If YES, GO TO 3.
● If NO, GO TO 4.
Based on self-diagnosis results unrelated to CAN communication, carry out the inspection.
Malfunctions may be detected in self-diagnosis depending on control units carrying out CAN communication. Therefor, erase the self-diagnosis results.
Diagnose CAN communication system. Refer to LAN-44, "TROUBLE DIAGNOSIS" .
●
2.
3.
4.
5.
Precautions for Brake Control
●
●
●
●
●
●
●
●
●
●
●
●
EFS004GK
During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.
Just after starting vehicle, the brake pedal may vibrate or a motor operating noise may be heard from
engine compartment. This is a normal status of operation check.
Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.
When an error is indicated by ABS or another warning lamp, collect all necessary information from customer (what symptoms are present under what conditions) and check for simple causes before starting
diagnosis. Besides electrical system inspection, check booster operation, brake fluid level, and fluid leaks.
If incorrect tire sizes or types are installed on the vehicle or brake pads are not Genuine NISSAN parts,
stopping distance or steering stability may deteriorate.
If there is a radio, antenna or related wiring near control module, ABS function may have a malfunction or
error.
If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness
pinches, open circuits or improper wiring.
If the following components are replaced with non-genuine components or modified, the VDC OFF indicator lamp and SLIP indicator lamp may turn on or the VDC system may not operate properly. Components
related to suspension (shock absorbers, struts, springs, bushings, etc.), tires, wheels (exclude specified
size), components related to brake system (pads, rotors, calipers, etc.), components related to engine
(muffler, ECM, etc.), components related to body reinforcement (roll bar, tower bar, etc.).
Driving with broken or excessively worn suspension components, tires or brake system components may
cause the VDC OFF indicator lamp and the SLIP indicator lamp to turn on, and the VDC system may not
operate properly.
When the TCS or VDC is activated by sudden acceleration or sudden turn, some noise may occur. The
noise is a result of the normal operation of the TCS and VDC.
When driving on roads which have extreme slopes (such as mountainous roads) or high banks (such as
sharp curves on a freeway), the VDC may not operate normally, or the VDC warning lamp and the SLIP
indicator lamp may turn on. This is not a problem if normal operation can be resumed after restarting the
engine.
Sudden turns (such as spin turns, acceleration turns), drifting, etc. with VDC turned off may cause the yaw
rate/side/decel G sensor to indicate a problem. This is not a problem if normal operation can be resumed
after restarting the engine.
Precautions for CAN System
●
●
●
EFS004GL
Do not apply voltage of 7.0V or higher to terminal to be measured.
Maximum open terminal voltage of tester in use must be less than 7.0V.
Before checking harnesses, turn ignition switch OFF and disconnect battery negative cable.
Revision: May 2006
BRC-46
2007 Maxima
PRECAUTIONS
[VDC/TCS/ABS]
●
Area to be repaired must be soldered and wrapped with tape.
Make sure that fraying of twisted wire is within 110 mm (4.33 in).
A
B
C
PKIA0306E
D
●
Do not make a bypass connection to repaired area. (If the circuit
is bypassed, characteristics of twisted wire will be lost.)
E
BRC
G
PKIA0307E
H
I
J
K
L
M
Revision: May 2006
BRC-47
2007 Maxima
PREPARATION
[VDC/TCS/ABS]
PREPARATION
Special Service Tool
PFP:00002
EFS00634
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name
Description
(J-45741)
ABS active wheel sensor tester
Checking operation of ABS active wheel sensor
WFIA0101E
Commercial Service Tools
EFS00635
Tool name
Description
1. Flare nut crowfoot
2. Torque wrench
Removing and installing brake piping
a: 10mm (0.39 in)/12mm (0.47 in)
S-NT360
Revision: May 2006
BRC-48
2007 Maxima
SYSTEM DESCRIPTION
[VDC/TCS/ABS]
SYSTEM DESCRIPTION
System Components
PFP:00000
A
EFS004GP
B
C
D
E
BRC
G
H
I
WFIA0313E
ABS Function
●
●
●
●
●
●
EFS004GQ
The Anti-Lock Brake System detects wheel revolution while braking and improves handling stability during
sudden braking by electrically preventing wheel lockup. Maneuverability is also improved for avoiding
obstacles.
If the electrical system malfunctions, the Fail-Safe function is activated, the ABS becomes inoperative and
the ABS warning lamp turns on.
The electrical system can be diagnosed using CONSULT-II.
During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.
Just after starting the vehicle, the brake pedal may vibrate or a motor operating noise may be heard from
engine compartment. This is a normal status of operation check.
Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.
EBD Function
●
●
●
●
●
EFS004GR
Electronic Brake Distribution is a function that detects subtle slippages between the front and rear wheels
during braking, and it improves handling stability by electronically controlling the brake fluid pressure
which results in reduced rear wheel slippage.
If the electrical system malfunctions, the Fail-Safe function is activated, the EBD and ABS become inoperative, and the ABS warning lamp and BRAKE warning lamp are turned on.
The electrical system can be diagnosed using CONSULT-II.
During EBD operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.
Just after starting the vehicle, the brake pedal may vibrate or a motor operating noise may be heard from
engine compartment. This is a normal status of operation check.
Revision: May 2006
BRC-49
2007 Maxima
J
K
L
M
SYSTEM DESCRIPTION
[VDC/TCS/ABS]
●
Stopping distance may be longer than that of vehicles without EBD when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.
TCS Function
●
●
●
●
EFS004GS
Spinning of the drive wheels is detected by the ABS/TCS/VDC control unit using inputs from the wheel
speed sensors. If wheel spin occurs, the drive wheel right and left brake fluid pressure control and engine
fuel cut are conducted while the throttle value is restricted to reduce the engine torque and decrease the
amount of wheel spin. In addition, the throttle opening is controlled to achieve the optimum engine torque.
Depending on road condition, the vehicle may have a sluggish feel. This is normal, because optimum traction has the highest priority during TCS operation.
TCS may be activated during sudden vehicle acceleration, wide open throttle acceleration, sudden transmission shifts or when the vehicle is driven on a road with a varying surface friction coefficient.
The SLIP indicator lamp flashes to inform the driver of TCS operation.
VDC Function
●
●
●
●
EFS004GT
In addition to the ABS/TCS function, the driver steering amount and brake operation amount are detected
from the steering angle sensor, and the vehicle's driving status (amount of under steering/over steering) is
determined using inputs from the yaw rate/side/decel G sensor, wheel speed sensors, etc. and this information is used to improve vehicle stability by controlling the braking and engine torque application to the
wheels.
The SLIP indicator lamp flashes to inform the driver of VDC operation.
During VDC operation, the vehicle body and brake pedal may vibrate lightly and a mechanical noise may
be heard. This is normal.
The ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp may turn on when the vehicle is
subject to strong shaking or large vibration, such as when the vehicle is on a turn table or a ship while the
engine is running or steep slope. In this case, restart the engine on a normal road and if the ABS warning
lamp, VDC OFF indicator lamp and SLIP indicator lamp turn off, there is no problem.
Revision: May 2006
BRC-50
2007 Maxima
SYSTEM DESCRIPTION
[VDC/TCS/ABS]
Wheel Sensors
EFS004GU
A
The front sensor units consist of a gear-shaped sensor rotor and a
sensor element. The element contains a magnet around which a coil
is wound. The front wheel sensors are installed on the front of the
wheel knuckles. As the wheel rotates, the sensor generates a
square-wave signal. The frequency increases as the wheel speed
increases.
B
C
D
LBR333
E
The rear sensor units consist of wheel hubs with a series of internal
magnets and a sensor element. The rear wheel sensors are installed
on the inner side of the wheel knuckles. As the wheel rotates, the
sensor generates a square-wave signal. The frequency increases as
the wheel speed increases.
BRC
G
H
WFIA0033E
Fail-Safe Function
EFS004GV
ABS/EBD SYSTEM
I
In case of an electrical malfunction with the ABS, the ABS warning lamp, VDC OFF indicator lamp and SLIP
indicator lamp will turn on. In case of an electrical malfunction with the EBD system, the BRAKE warning lamp,
ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp will turn on.
The system will revert to one of the following conditions of the Fail-Safe function.
1. For ABS malfunction, only the EBD is operative and the condition of the vehicle is the same condition of
vehicles without ABS/TCS/VDC system.
2. For EBD malfunction, the EBD and ABS become inoperative, and the condition of the vehicle is the same
as the condition of vehicles without ABS/TCS/VDC or EBD system.
J
K
VDC/TCS SYSTEM
L
In case of TCS/VDC system malfunction, the VDC OFF indicator lamp and SLIP indicator lamp are turned on
and the condition of the vehicle is the same as the condition of vehicles without TCS/VDC system. In case of
an electrical malfunction with the TCS/VDC system, the ABS control continues to operate normally without
TCS/VDC control.
CAUTION:
If the Fail-Safe function is activated, perform the Self Diagnosis for ABS/TCS/VDC system.
M
Revision: May 2006
BRC-51
2007 Maxima
SYSTEM DESCRIPTION
[VDC/TCS/ABS]
Hydraulic Circuit Diagram
EFS004GW
WFIA0533E
Revision: May 2006
BRC-52
2007 Maxima
CAN COMMUNICATION
[VDC/TCS/ABS]
CAN COMMUNICATION
System Description
PFP:23710
A
EFS004GX
Refer to LAN-4, "SYSTEM DESCRIPTION" .
B
C
D
E
BRC
G
H
I
J
K
L
M
Revision: May 2006
BRC-53
2007 Maxima
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
How to Perform Trouble Diagnoses for Quick and Accurate Repair
PFP:00000
EFS004GY
INTRODUCTION
The ABS/TCS/VDC system has an electronic control unit to control
major functions. The control unit accepts input signals from sensors
and controls actuator operation. It is also important to check for conventional malfunctions such as air leaks in the booster or lines, lack
of brake fluid, or other malfunctions with the brake system.
It is much more difficult to diagnose a malfunction that occurs intermittently rather than continuously. Most intermittent malfunctions are
caused by poor electrical connections or wiring. In this case, careful
checking of suspicious circuits may help prevent the replacement of
good parts.
A visual check only may not find the cause of the malfunction, so a
road test should be performed.
Before undertaking actual checks, take just a few minutes to talk with
a customer who approaches with an ABS/TCS/VDC complaint. The
customer is a very good source of information, especially for intermittent malfunctions. Through the talks with the customer, find out
what symptoms are present and under what conditions they occur.
Start your diagnosis by looking for “conventional” malfunctions first.
This is one of the best ways to troubleshoot brake malfunctions on
an ABS/TCS/VDC equipped vehicle. Also check related Service Bulletins for information.
SEF233G
SEF234G
Revision: May 2006
BRC-54
2007 Maxima
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
WORK FLOW
A
B
C
D
E
BRC
G
H
I
J
K
L
M
WFIA0534E
Revision: May 2006
BRC-55
2007 Maxima
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
CLARIFY CONCERN
●
●
●
A customer's description of a vehicle concern may vary depending on the individual. It is important to clarify the customer's concern.
Ask the customer about what symptoms are present under what
conditions. Use this information to reproduce the symptom while
driving.
It is also important to use the diagnosis sheet to understand
what type of trouble the customer is having.
SBR339B
EXAMPLE OF DIAGNOSIS SHEET
WFIA0097E
Revision: May 2006
BRC-56
2007 Maxima
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
Component Parts and Harness Connector Location
EFS004GZ
A
B
C
D
E
BRC
G
H
I
J
K
L
M
WFIA0493E
Revision: May 2006
BRC-57
2007 Maxima
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
1.
Rear wheel sensor RH B122
2.
Yaw rate/side/decel G sensor M46
3.
ABS actuator and electric unit (control unit) E125 (engine removed for
clarity)
6.
Combination meter M24
4.
Front wheel sensor RH E117
5.
Front wheel sensor LH E18
7.
VDC OFF switch M6
8.
Steering angle sensor M47 (steering 9.
wheel removed for clarity)
Revision: May 2006
BRC-58
Rear wheel sensor LH B123
2007 Maxima
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
Schematic
EFS004H0
A
B
C
D
E
BRC
G
H
I
J
K
L
M
WFWA0428E
Revision: May 2006
BRC-59
2007 Maxima
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
Wiring Diagram — VDC —
EFS004H1
WFWA0429E
Revision: May 2006
BRC-60
2007 Maxima
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
A
B
C
D
E
BRC
G
H
I
J
K
L
M
WFWA0430E
Revision: May 2006
BRC-61
2007 Maxima
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
WFWA0431E
Revision: May 2006
BRC-62
2007 Maxima
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
A
B
C
D
E
BRC
G
H
I
J
K
L
M
WFWA0432E
Revision: May 2006
BRC-63
2007 Maxima
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
WFWA0433E
Revision: May 2006
BRC-64
2007 Maxima
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
A
B
C
D
E
BRC
G
H
I
J
K
L
M
WFWA0434E
Revision: May 2006
BRC-65
2007 Maxima
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
Basic Inspection
EFS004H2
BRAKE FLUID LEVEL, FLUID LEAK, AND BRAKE PAD INSPECTION
1.
2.
3.
Check fluid level in the brake fluid reservoir. If fluid level is low, add fluid.
Check the brake piping and around the ABS actuator and electric unit (control unit) for leaks. If there is
leaking or seeping fluid, check the following items.
● If ABS actuator and electric unit (control unit) connection is loose, tighten the piping to the specified
torque and recheck for leaks.
● If there is damage to the connection flare nut or ABS actuator and electric unit (control unit) screw,
replace the damaged part and recheck for leaks.
● When there is fluid leaking or seeping from a fluid connection, use a clean cloth to wipe off the fluid and
recheck for leaks. If fluid is still seeping out, replace the damaged part. If the fluid is leaking at the ABS
actuator and electric unit (control unit), replace the ABS actuator and electric unit (control unit) assembly.
CAUTION:
The ABS actuator and electric unit (control unit) cannot be disassembled and must be replaced
as an assembly.
Check the brake pads for excessive wear.
POWER SYSTEM TERMINAL LOOSENESS AND BATTERY INSPECTION
Make sure the battery positive cable, negative cable and ground connection are not loose. In addition, make
sure the battery is sufficiently charged.
ABS WARNING LAMP, SLIP INDICATOR LAMP AND VDC OFF INDICATOR LAMP INSPECTION
1.
2.
3.
4.
5.
Make sure ABS warning lamp, SLIP indicator lamp and VDC OFF indicator lamp (when VDC OFF switch
is off), turn on for approximately 2 seconds when the ignition switch is turned ON. If they do not, check the
VDC OFF indicator lamp and then VDC OFF switch. Refer to BRC-87, "VDC OFF SWITCH" . Check CAN
communications. If there are no errors with VDC OFF switch and CAN communication system, check
combination meter. Refer to DI-5, "COMBINATION METERS" .
Make sure the lamps turn off approximately 2 seconds after the ignition switch is turned ON. If the lamp
does not turn off, conduct self-diagnosis.
With the engine running, make sure VDC OFF indicator lamp turns on and off when VDC OFF switch is
turned on and off. If the indicator lamp status does not correspond to switch operation, check the VDC
OFF switch system. Refer to BRC-87, "VDC OFF SWITCH" .
Make sure ABS warning lamp, SLIP indicator lamp and VDC OFF indicator lamp turn off approximately 2
seconds after the engine is started. If ABS warning lamp, SLIP indicator lamp or VDC OFF indicator lamp
have not turned off 10 seconds after the engine has been started, conduct self-diagnosis of the ABS actuator and electric unit (control unit).
After conducting the self-diagnosis, be sure to erase the error memory. Refer to BRC-70, "CONSULT-II
Function (ABS)" .
Revision: May 2006
BRC-66
2007 Maxima
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
Warning Lamp and Indicator Timing
EFS004H3
×: ON
ABS
warning lamp
VDC OFF
indicator lamp
SLIP
indicator lamp
Remarks
When the ignition switch is OFF
–
–
–
–
After the ignition switch is turned
ON
For approx. 2 seconds
×
×
×
–
Ignition switch ON
Approx. 2 seconds later
–
–
–
–
When the VDC OFF switch turns
ON (VDC function OFF).
–
×
–
–
×
×
×
–
Condition
ABS/TCS/VDC malfunction
When the VDC is malfunctioning.
–: OFF
A
B
C
D
×
×
–
When the ABS/TCS/VDC control
unit is malfunctioning (power supply or ground malfunction).
–
×
×
–
Control Unit Input/Output Signal Standard
E
BRC
EFS004H4
REFERENCE VALUE FROM CONSULT-II
CAUTION:
The display shows the control unit calculation data, so a normal value might be displayed even in the
event the output circuit (harness) is open or short circuited.
G
H
Data monitor
Monitor item
Display content
Condition
FR RH SENSOR
FR LH SENSOR
RR RH SENSOR
RR LH SENSOR
Wheel speed
ACCEL POS SIG
Open/close condition
of throttle valve (linked
with accelerator pedal).
ENGINE SPEED
Steering angle
detected by steering
angle sensor
YAW RATE SEN
Yaw rate detected by
yaw rate sensor
SIDE G-SENSOR
Transverse G detected
by side G-sensor
BATTERY VOLT
Battery voltage supplied to ABS actuator
and electric unit (control unit)
STOP LAMP SW
Brake pedal operation
Revision: May 2006
Note: Error inspection
checklist
I
Vehicle stopped
0 [km/h (MPH)]
Vehicle running (Note 1)
Almost in accordance with speedometer display
(within ±10%)
BRC-77, "Wheel Sensor
System Inspection"
Accelerator pedal not
depressed (ignition switch is
ON)
0%
Depress accelerator pedal
(ignition switch is ON)
BRC-87, "CAN Communication System Inspection"
0 to 100%
With engine stopped
0 rpm
Engine running
Almost in accordance with
tachometer display
BRC-78, "Engine System
Inspection"
Straight-ahead
Approx. 0 deg
Steering wheel turned
–756 to 756 deg
BRC-79, "Steering Angle
Sensor System Inspection"
Vehicle stopped
Approx. 0 d/s
Vehicle running
–100 to 100 d/s
Vehicle stopped
Approx. 0 m/s2
Vehicle running
–16.7 to 16.7 m/s2
With engine running
STR ANGLE SIG
Reference value in
normal operation
Ignition switch ON
10 to 16V
Brake pedal depressed
ON
Brake pedal not depressed
OFF
BRC-67
J
K
L
BRC-81, "Yaw Rate/Side/
Decel G Sensor System
Inspection"
BRC-81, "Yaw Rate/Side/
Decel G Sensor System
Inspection"
BRC-85, "ABS/TCS/VDC
Control Unit Power and
Ground Systems Inspection"
BRC-84, "Stop Lamp
Switch System Inspection"
2007 Maxima
M
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
Data monitor
Monitor item
OFF SW
ABS WARN LAMP
MOTOR RELAY
ACTUATOR RLY
OFF LAMP
SLIP LAMP
FR LH IN SOL
FR LH OUT SOL
FR RH IN SOL
FR RH OUT SOL
RR RH IN SOL
RR RH OUT SOL
RR LH IN SOL
RR LH OUT SOL
CV1
CV2
SV1
SV2
DECEL G-SEN
FLUID LEV SW
VDC FAIL SIG
TCS FAIL SIG
ABS FAIL SIG
EBD FAIL SIG
Display content
VDC OFF switch
ON/OFF status
ABS warning lamp ON
condition (Note 2)
Operation status of
motor and motor relay
Actuator relay operation status
VDC OFF indicator
lamp status (Note 3)
SLIP indicator lamp
status (Note 4)
Solenoid valve operation
VDC switch-over valve
status
Longitudinal acceleration detected by Decel
G-Sensor
ON/OFF status of
brake fluid level switch
Fail signal status
Condition
Reference value in
normal operation
VDC OFF switch ON
(When VDC OFF indicator
lamp is ON)
ON
VDC OFF switch OFF
(When VDC OFF indicator
lamp is OFF)
OFF
ABS warning lamp ON
ON
ABS warning lamp OFF
OFF
Ignition switch ON or engine
running (ABS not operated)
OFF
Ignition switch ON or engine
running (ABS operated)
ON
Vehicle stopped (Ignition
switch ON)
OFF
Vehicle stopped (Engine running)
ON
When VDC OFF indicator
lamp is ON
ON
When VDC OFF indicator
lamp is OFF
OFF
When SLIP indicator lamp is
ON
ON
When SLIP indicator lamp is
OFF
OFF
Actuator (solenoid) is active
(“ACTIVE TEST” with CONSULT-II) or actuator relay is
inactive (in fail-safe mode).
ON
When actuator (solenoid) is
not active and actuator relay is
active (ignition switch ON).
OFF
When actuator (switch-over
valve) is active (“ACTIVE
TEST” with CONSULT-II) or
actuator relay is inactive (when
in fail-safe mode).
ON
When actuator (switch-over
valve) is not active and actuator relay is active (ignition
switch ON).
OFF
Vehicle stopped
ON
Vehicle running
OFF
When brake fluid level switch
ON
ON
When brake fluid level switch
OFF
OFF
VDC fail
TCS fail
ABS fail
EBD fail
Note: Error inspection
checklist
BRC-87, "VDC OFF
SWITCH"
BRC-91, "ABS Warning
Lamp Does Not Come
On When Ignition Switch
Is Turned On"
BRC-83, "Actuator Motor,
Motor Relay, and Circuit
Inspection"
BRC-83, "Actuator Motor,
Motor Relay, and Circuit
Inspection"
BRC-87, "CAN Communication System Inspection"
BRC-87, "CAN Communication System Inspection"
BRC-82, "Solenoid and
VDC Change-Over Valve
System Inspection"
BRC-81, "Yaw Rate/Side/
Decel G Sensor System
Inspection"
DI-39, "WARNING
LAMPS"
OFF
VDC system
TCS system
ABS system
EBD system
Note 1: Confirm tire pressure is normal.
Revision: May 2006
BRC-68
2007 Maxima
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
Note 2: ON/OFF timing of ABS warning lamp
ON: For approximately 2 seconds after ignition switch is turned ON, or when a malfunction is detected.
OFF: Approximately 2 seconds after ignition switch is turned ON (when system is in normal operation) and TCS/VDC function is not
activated.
Note 3: ON/OFF timing of VDC OFF indicator lamp
ON: For approximately 2 seconds after ignition switch is turned ON, or when a malfunction is detected and VDC OFF switch is ON.
OFF: Approximately 2 seconds after ignition switch is turned ON (when system is in normal operation.) And when VDC OFF switch is
OFF.
Note 4: SLIP indicator lamp ON/OFF timing
ON: For approximately 2 seconds after ignition switch is turned ON, or when a malfunction is detected and TCS/VDC function is activated while driving.
OFF: Approximately 2 seconds after ignition switch is turned ON (when system is in normal operation) and TCS/VDC function is not
activated.
Flashing: TCS/VDC function is active during driving
A
B
C
D
E
BRC
G
H
I
J
K
L
M
Revision: May 2006
BRC-69
2007 Maxima
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
CONSULT-II Function (ABS)
EFS004H5
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
ABS diagnostic mode
WORK SUPPORT
SELF-DIAG RESULTS
DATA MONITOR
Description
Supports inspection and adjustments. Commands are transmitted to the ABS actuator and electric
unit (control unit) for setting the status suitable for required operation, input/output signals are
received from the ABS actuator and electric unit (control unit) and received data is displayed.
Displays ABS actuator and electric unit (control unit) self-diagnosis results.
Displays ABS actuator and electric unit (control unit) input/output data in real time.
CAN DIAG SUPPORT MNTR
The result of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TEST
Operation of electrical loads can be checked by sending drive signal to them.
FUNCTION TEST
ECU PART NUMBER
Conducted by CONSULT-II instead of a technician to determine whether each system is "OK" or
"NG".
ABS actuator and electric unit (control unit) part number can be read.
CONSULT-II START PROCEDURE
Refer to GI-37, "CONSULT-II Start Procedure" .
SELF-DIAGNOSIS
Description
If an error is detected in the system, the ABS warning lamp will turn on. In this case, perform self-diagnosis as
follows:
Operation Procedure
1.
2.
Turn ignition switch OFF.
Connect CONSULT-II and CONSULT-II CONVERTER to the data link connector.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
3.
4.
5.
Turn ignition switch ON.
Start engine and drive at approximately 30 km/h (19 MPH) for approximately 1 minute.
After stopping the vehicle, with the engine running, touch “START (NISSAN BASED VHCL)”, “ABS”,
“SELF-DIAG RESULTS” in order on the CONSULT-II screen.
CAUTION:
If “START (NISSAN BASED VHCL)” is touched immediately after starting the engine or turning on
the ignition switch, “ABS” might not be displayed in the SELECT SYSTEM screen. In this case,
repeat the operation from step 1.
6. The self-diagnostic results are displayed. (If necessary, the self-diagnostic results can be printed out by
touching “COPY”.)
● When “NO DTC IS DETECTED” is displayed, check the ABS warning lamp, SLIP indicator lamp and
VDC OFF indicator lamp.
7. Conduct the appropriate inspection from the display item list, and repair or replace the malfunctioning
component.
8. Start engine and drive at approximately 30 km/h (19 MPH) for approximately 1 minute.
CAUTION:
● When a wheel sensor “short-circuit” is detected, if the vehicle is not driven at 30 km/h (19 MPH)
for at least 1 minute, the ABS warning lamp will not turn off even if the malfunction is repaired.
9. Turn ignition switch OFF to prepare for erasing the memory.
10. Start the engine and touch “START (NISSAN BASED VHCL)”, “ABS”, “SELF-DIAG RESULTS”, “ERASE”
in order on the CONSULT-II screen to erase the error memory.
If “ABS” is not indicated, go to GI-39, "CONSULT-II Data Link Connector (DLC) Circuit" .
CAUTION:
If the error memory is not erased, re-conduct the operation from step 5.
Revision: May 2006
BRC-70
2007 Maxima
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
11. For the final inspection, drive at approximately 30 km/h (19 MPH) for approximately 1 minute and confirm
that the ABS warning lamp, SLIP indicator lamp, and VDC OFF indicator lamp are off.
A
Display Item List
Self-diagnostic item
Malfunction detecting condition
FR LH SENSOR 1
[C1104]
Circuit of front LH wheel sensor is open.
RR RH SENSOR 1
[C1101]
Circuit of rear RH wheel sensor is open.
FR RH SENSOR 1
[C1103]
Circuit of front RH wheel sensor is open.
RR LH SENSOR 1
[C1102]
Circuit of rear LH wheel sensor is open.
FR LH SENSOR 2
[C1108]
Circuit of front LH wheel sensor is shorted, or sensor power voltage is unusual. ABS actuator and electric unit (control unit) cannot identify sensor pulses, because of large gap between wheel
sensor and sensor rotor.
RR RH SENSOR 2
[C1105]
Circuit of rear RH wheel sensor is shorted, or sensor power voltage is unusual. ABS actuator and electric unit (control unit) cannot identify sensor pulses, because of large gap between wheel
sensor and sensor rotor.
FR RH SENSOR 2
[C1107]
Circuit of front RH wheel sensor is shorted, or sensor power voltage is unusual. ABS actuator and electric unit (control unit) cannot identify sensor pulses, because of large gap between wheel
sensor and sensor rotor.
Check system
B
C
D
E
BRC-77, "Wheel Sensor
System Inspection"
(Note 1)
BRC
G
H
RR LH SENSOR 2
[C1106]
Circuit of rear LH wheel sensor is shorted, or sensor power voltage is unusual. ABS actuator and electric unit (control unit) cannot identify sensor pulses, because of large gap between wheel
sensor and sensor rotor.
STOP LAMP SW 1
[C1116]
Stop lamp switch or circuit malfunction.
BRC-84, "Stop Lamp
Switch System Inspection"
ST ANGLE SEN CIRCUIT
[C1143, C1163]
Neutral position of steering angle sensor is dislocated, or steering angle sensor is malfunctioning.
BRC-79, "Steering Angle
Sensor System Inspection"
K
YAW RATE SENSOR
[C1145]
Yaw rate sensor has generated an error, or yaw rate sensor signal line is open or shorted.
BRC-81, "Yaw Rate/
Side/Decel G Sensor
System Inspection"
L
I
J
M
Revision: May 2006
BRC-71
2007 Maxima
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
Self-diagnostic item
Malfunction detecting condition
FR LH IN ABS SOL
[C1120]
Circuit of front LH IN ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
FR LH OUT ABS SOL
[C1121]
Circuit of front LH OUT ABS solenoid is open or shorted, or control line is open or shorted to power supply or ground.
RR RH IN ABS SOL
[C1126]
Circuit of rear RH IN ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
RR RH OUT ABS SOL
[C1127]
Circuit of rear RH OUT ABS solenoid is open or shorted, or control line is open or shorted to power supply or ground.
FR RH IN ABS SOL
[C1122]
Circuit of front RH IN ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
FR RH OUT ABS SOL
[C1123]
Circuit of front RH OUT ABS solenoid is open or shorted, or control line is open or shorted to power supply or ground.
RR LH IN ABS SOL
[C1124]
Circuit of rear LH IN ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
RR LH OUT ABS SOL
[C1125]
Circuit of rear LH OUT ABS solenoid is open or shorted, or control line is open or shorted to power supply or ground.
CV1
[C1164]
Front side VDC switch-over solenoid valve (cut valve) is open or
shorted, or control line is open or shorted to power supply or
ground.
CV2
[C1165]
Rear side VDC switch-over solenoid valve (cut valve) is open or
shorted, or control line is open or shorted to power supply or
ground.
SV1
[C1166]
Front side VDC switch-over solenoid valve (suction valve) is
open or shorted, or control line is open or shorted to power supply or ground.
SV2
[C1167]
Rear side VDC switch-over solenoid valve (suction valve) is open
or shorted, or control line is open or shorted to power supply or
ground.
PUMP MOTOR (Note 3)
[C1111]
During actuator motor operation with ON, when actuator motor
turns OFF or when control line for actuator motor relay is open.
During actuator motor operation with OFF, when actuator motor
turns ON or when control line for relay is shorted to ground.
Check system
BRC-82, "Solenoid and
VDC Change-Over Valve
System Inspection"
BRC-83, "Actuator
Motor, Motor Relay, and
Circuit Inspection"
BRC-85, "ABS/TCS/
VDC Control Unit Power
and Ground Systems
Inspection"
BATTERY VOLTAGE
[ABNORMAL]
[C1109]
ABS actuator and electric unit (control unit) power voltage is too
low.
ST ANGLE SEN SIGNAL
[C1144]
Neutral position correction of steering angle sensor is not finished.
ST ANG SEN COM CIR
[C1156]
CAN communication line or steering angle sensor has generated
an error.
LONGITUDINAL G-SENSOR
[C1113]
Longitudinal G-sensor is malfunctioning, or signal line of longitudinal G-sensor is open or shorted.
BRC-81, "Yaw Rate/
Side/Decel G Sensor
System Inspection"
CONTROLLER FAILURE
[C1110]
Internal malfunction of ABS actuator and electric unit (control
unit) or wheel speed signal malfunction.
BRC-79, "ABS/TCS/
VDC Control Unit
Inspection"
CAN COMM CIRCUIT
[U1000]
LATERAL G-SENSOR
[C1146]
Revision: May 2006
●
CAN communication line is open or shorted.
●
ABS actuator and electric unit (control unit) internal malfunction
●
Battery voltage for ECM is suddenly interrupted for approximately 0.5 seconds or more.
Lateral G-sensor is malfunctioning, or signal line of lateral G-sensor is open or shorted.
BRC-72
BRC-79, "Steering Angle
Sensor System Inspection"
BRC-87, "CAN Communication System Inspection" (Note 2)
BRC-81, "Yaw Rate/
Side/Decel G Sensor
System Inspection"
2007 Maxima
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
Self-diagnostic item
Malfunction detecting condition
Check system
Brake fluid level drops or circuit between ABS actuator and electric unit (control unit) and brake fluid level switch is open or
shorted.
ENGINE SIGNAL 1
[C1130]
ECM judges the communication between ABS/TCS/VDC control
unit and ECM is abnormal.
ENGINE SIGNAL 2
[C1131]
ECM judges the communication between ABS/TCS/VDC control
unit and ECM is abnormal.
ENGINE SIGNAL 3
[C1132]
ECM judges the communication between ABS/TCS/VDC control
unit and ECM is abnormal.
ENGINE SIGNAL 4
[C1133]
ECM judges the communication between ABS/TCS/VDC control
unit and ECM is abnormal.
ENGINE SIGNAL 5
[C1134]
ECM judges the communication between ABS/TCS/VDC control
unit and ECM is abnormal.
ENGINE SIGNAL 6
[C1136]
ECM judges the communication between ABS/TCS/VDC control
unit and ECM is abnormal.
ACTUATOR RLY
[C1140]
BRC-83, "Actuator
Motor, Motor Relay, and
Circuit Inspection"
BRC
ABS actuator or relay circuit malfunction.
STOP LAMP SW 2
[C1176]
ASCD brake switch or circuit malfunction.
EC-524, "DTC P1572
ASCD BRAKE SWITCH"
G
BRC-86, "Brake Fluid
Level Switch System
Inspection"
B
C
BRC-78, "Engine System Inspection"
DATA MONITOR
Operation Procedure
2.
3.
4.
Display Item List
Data monitor item selection
ECU INPUT
SIGNALS
MAIN
SIGNALS
SELECTION
FROM MENU
Remarks
GEAR
×
×
×
This item is not used for this model.
"1" is always displayed.
FR RH SENSOR
(km/h, MPH)
×
×
×
Wheel speed calculated by front
RH wheel sensor signal is displayed.
FR LH SENSOR
(km/h, MPH)
×
×
×
Wheel speed calculated by front LH
wheel sensor signal is displayed.
Revision: May 2006
H
I
After turning OFF the ignition switch, connect CONSULT-II and CONSULT-II CONVERTER to the data link
connector.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
Touch “START (NISSAN BASED VHCL)”, “ABS”, “DATA MONITOR” in order on the CONSULT-II screen.
If “ABS” is not indicated, go to GI-39, "CONSULT-II Data Link Connector (DLC) Circuit" .
CAUTION:
When “START (NISSAN BASED VHCL)” is touched immediately after starting the engine or turning
on the ignition switch, “ABS” might not be displayed in the SELECT SYSTEM screen. In this case,
repeat the operation from step 2.
Return to the SELECT MONITOR ITEM screen, and touch “ECU INPUT SIGNALS”, “MAIN SIGNALS” or
“SELECTION FROM MENU”. Refer to the following information.
When “START” is touched, the data monitor screen is displayed.
Item
(Unit)
D
E
Note 1. If wheel sensor 2 for each wheel is indicated, check ABS actuator and electric unit (control unit) power
supply voltage in addition to wheel sensor circuit check.
Note 2. If multiple malfunctions are detected including CAN communication line [U1000], perform diagnosis for
CAN communication line first.
1.
A
BR FLUID LEVEL LOW
[C1155]
BRC-73
2007 Maxima
J
K
L
M
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
Item
(Unit)
Data monitor item selection
ECU INPUT
SIGNALS
MAIN
SIGNALS
SELECTION
FROM MENU
Remarks
RR RH SENSOR
(km/h, MPH)
×
×
×
Wheel speed calculated by rear RH
wheel sensor signal is displayed.
RR LH SENSOR
(km/h, MPH)
×
×
×
Wheel speed calculated by rear LH
wheel sensor signal is displayed.
BATTERY VOLT
(V)
×
×
×
Voltage supplied to ABS actuator
and electric unit (control unit) is displayed.
ACCEL POS SIG
(%)
×
–
×
Throttle valve open/close status
judged by LAN communication signal is displayed.
ENGINE SPEED
(rpm)
×
×
×
Engine speed judged by LAN communication signal is displayed.
STR ANGLE SIG
(deg)
×
–
×
Steering angle detected by steering
angle sensor is displayed.
YAW RATE SEN
(d/s)
×
×
×
Yaw rate detected by yaw rate sensor is displayed.
DECEL G-SEN
(d/s)
×
×
×
Longitudinal acceleration detected
by Decel G-sensor is displayed.
×
–
×
Transverse acceleration detected
by side G-sensor is displayed.
STOP LAMP SW
(ON/OFF)
×
×
×
Stop lamp switch (ON/OFF) status
is displayed.
OFF SW
(ON/OFF)
×
×
×
VDC OFF switch (ON/OFF) status
is displayed.
ABS WARN LAMP
(ON/OFF)
–
×
×
ABS warning lamp (ON/OFF) status
is displayed.
SLIP LAMP
(ON/OFF)
–
×
×
SLIP indicator lamp (ON/OFF) status is displayed.
FR LH IN SOL
(ON/OFF)
–
×
×
Front LH IN ABS solenoid (ON/
OFF) status is displayed.
FR LH OUT SOL
(ON/OFF)
–
×
×
Front LH OUT ABS solenoid (ON/
OFF) status is displayed.
RR RH IN SOL
(ON/OFF)
–
×
×
Rear RH IN ABS solenoid (ON/
OFF) status is displayed.
RR RH OUT SOL
(ON/OFF)
–
×
×
Rear RH OUT ABS solenoid (ON/
OFF) status is displayed.
FR RH IN SOL
(ON/OFF)
–
×
×
Front RH IN ABS solenoid (ON/
OFF) status is displayed.
FR RH OUT SOL
(ON/OFF)
–
×
×
Front RH OUT ABS solenoid (ON/
OFF) status is displayed.
RR LH IN SOL
(ON/OFF)
–
×
×
Rear LH IN ABS solenoid (ON/
OFF) status is displayed.
RR LH OUT SOL
(ON/OFF)
–
×
×
Rear LH OUT ABS solenoid (ON/
OFF) status is displayed.
OFF LAMP
(ON/OFF)
–
×
×
OFF Lamp (ON/OFF) status is displayed.
MOTOR RELAY
(ON/OFF)
–
×
×
ABS motor relay signal (ON/OFF)
status is displayed.
ACTUATOR RLY
(ON/OFF)
–
×
×
ABS actuator relay signal (ON/
OFF) status is displayed.
SIDE G-SENSOR
(m/s2 )
Revision: May 2006
BRC-74
2007 Maxima
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
Item
(Unit)
Data monitor item selection
ECU INPUT
SIGNALS
MAIN
SIGNALS
SELECTION
FROM MENU
Remarks
A
EBD WARN LAMP
(ON/OFF)
–
–
×
Brake warning lamp (ON/OFF) status is displayed.
B
P POSI SIG
(ON/OFF)
–
–
×
Shift position judged by PNP switch
signal.
N POSI SIG
(ON/OFF)
–
–
×
Shift position judged by PNP switch
signal.
CRANKING SIG
(ON/OFF)
–
–
×
Ignition switch START position signal input status is displayed.
D
CV1
(ON/OFF)
–
–
×
Front side switch-over solenoid
valve (cut valve) (ON/OFF) status is
displayed.
E
CV2
(ON/OFF)
–
SV1
(ON/OFF)
–
–
–
×
Rear side switch-over solenoid
valve (cut-valve) (ON/OFF) status
is displayed.
×
Front side switch-over solenoid
valve (suction valve) (ON/OFF) status is displayed.
SV2
(ON/OFF)
–
–
×
Rear side switch-over solenoid
valve (suction valve) (ON/OFF) status is displayed.
VDC FAIL SIG
(ON/OFF)
–
–
×
VDC fail signal (ON/OFF) status is
displayed.
TCS FAIL SIG
(ON/OFF)
–
–
×
TCS fail signal (ON/OFF) status is
displayed.
ABS FAIL SIG
(ON/OFF)
–
–
×
ABS fail signal (ON/OFF) status is
displayed.
EBD FAIL SIG
(ON/OFF)
–
–
×
EBD fail signal (ON/OFF) status is
displayed.
FLUID LEV SW
(ON/OFF)
×
–
×
Brake fluid level switch (ON/OFF)
status is displayed.
EBD SIGNAL
(ON/OFF)
–
–
×
EBD operation (ON/OFF) status is
displayed.
ABS SIGNAL
(ON/OFF)
–
–
×
ABS operation (ON/OFF) status is
displayed.
TCS SIGNAL
(ON/OFF)
–
–
×
TCS operation (ON/OFF) status is
displayed.
VDC SIGNAL
(ON/OFF)
–
–
×
VDC operation (ON/OFF) status is
displayed.
STOP LAMP SW2
–
–
×
ASCD (ON/OFF) status is displayed.
×: Applicable
–: Not applicable
ACTIVE TEST
CAUTION:
●
Do not perform active test while driving.
●
Make sure to completely bleed air from the brake system.
●
The ABS and BRAKE warning lamps turn on during the active test.
Operation Procedure
1.
Connect the CONSULT-II and CONSULT-II CONVERTER to the data link connector and start the engine.
Revision: May 2006
BRC-75
2007 Maxima
C
BRC
G
H
I
J
K
L
M
TROUBLE DIAGNOSIS
[VDC/TCS/ABS]
2.
3.
4.
5.
6.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
Touch “START (NISSAN BASED VHCL)” on the display screen.
Touch “ABS”.
If “ABS” is not indicated, go to GI-39, "CONSULT-II Data Link Connector (DLC) Circuit" .
Touch “ACTIVE TEST”.
The “SELECT TEST ITEM” screen is displayed.
Touch necessary test item.
LBR379
7.
8.
With the “MAIN SIGNALS” display selected, touch “START”.
The Active Test screen will be displayed, so conduct the following test.
Solenoid Valve Operation Chart
ABS solenoid valve
ABS solenoid valve (ACT)
Operation
UP
KEEP
DOWN
UP
ACTUATOR UP
ACTUATOR KEEP
FR RH SOL
FR RH ABS SOLENOID (ACT)
FR RH IN SOL
OFF
ON
ON
OFF
OFF
OFF
FR RH OUT SOL
OFF
OFF
ON*
OFF
OFF
OFF
FR LH SOL
FR LH ABS SOLENOID (ACT)
FR LH IN SOL
OFF
ON
ON
OFF
OFF
OFF
FR LH OUT SOL
OFF
OFF
ON*
OFF
OFF
OFF
RR RH SOL
RR RH ABS SOLENOID (ACT)
RR RH IN SOL
OFF
ON
ON
OFF
OFF
OFF
RR RH OUT SOL
OFF
OFF
ON*
OFF
OFF
OFF
RR LH SOL
RR LH ABS SOLENOID (ACT)
RR LH IN SOL
OFF
ON
ON
OFF
OFF
OFF
RR LH OUT SOL
OFF
OFF
ON*
OFF
OFF
OFF
*: ON for 1 to 2 seconds after the touch, and then OFF
NOTE:
●
If active test is performed with brake pedal depressed, pedal stroke may change. This is normal.
●
“TEST IS STOPPED” is displayed approximately 10 seconds after operation starts.
●
After “TEST IS STOPPED” is displayed, to perform test again, repeat Step 6.
ABS Motor
Touch “ON” and “OFF” on the screen. Check that ABS motor relay
operates as shown in table below.
Operation
ON
OFF
ABS actuator relay
ON
ON
ABS motor relay
ON
OFF
NOTE:
●
If active test is performed with brake pedal depressed, pedal
stroke may change. This is normal.
●
“TEST IS STOPPED” is displayed approximately 10 seconds
after operation starts.
Revision: May 2006
BRC-76
SFIA0593E
2007 Maxima
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Wheel Sensor System Inspection
PFP:00000
A
EFS004H6
INSPECTION PROCEDURE
1. CONNECTOR INSPECTION
B
Disconnect the ABS actuator and electric unit (control unit) connector E125 and wheel sensor of malfunctioning code.
Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace as necessary.
2. CHECK WHEEL SENSOR OUTPUT SIGNAL
C
D
E
1.
2.
3.
Disconnect connector from wheel sensor of malfunction code No.
Connect ABS active wheel sensor tester (J-45741) to wheel sensor using appropriate adapter.
BRC
Turn on the ABS active wheel sensor tester power switch.
NOTE:
The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the
G
battery in the ABS active wheel sensor tester before proceeding.
4. Spin the wheel of the vehicle by hand and observe the red SENSOR indicator on the ABS active wheel
sensor tester. The red SENSOR indicator should flash on and off to indicate an output signal.
H
NOTE:
If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and
retest.
Does the ABS active wheel sensor tester detect a signal?
I
YES >> GO TO 3.
NO
>> GO TO 6.
J
CHECK TIRES
3.
Check for inflation pressure, wear and size of each tire.
Are tire pressure and size correct and is tire wear within specifications?
YES >> GO TO 4.
NO
>> Adjust tire pressure or replace tire(s).
K
L
4. CHECK WHEEL BEARINGS
Check wheel bearing axial end play. Refer to FAX-5, "FRONT WHEEL BEARING" or RAX-5, "REAR WHEEL
BEARING" .
OK or NG
OK
>> GO TO 5.
NG
>> Repair as necessary. Refer to FAX-5, "FRONT WHEEL BEARING" or RAX-5, "REAR WHEEL
BEARING" .
5. CHECK SENSOR ROTORS
Check sensor rotors for tooth damage.
OK or NG
OK
>> GO TO 6.
NG
>> Replace sensor rotor. Refer to BRC-95, "Removal and Installation" .
Revision: May 2006
BRC-77
2007 Maxima
M
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
[VDC/TCS/ABS]
6. CHECK WIRING HARNESS FOR SHORT CIRCUIT
1.
2.
Disconnect ABS actuator and electric unit (control unit) connector and wheel sensor connector of malfunction code No.
Check continuity between harness connector terminal and
ground.
Continuity should not exist.
OK or NG
OK
>> GO TO 7.
NG
>> Repair the circuit.
WFIA0105E
7. CHECK WIRING HARNESS FOR OPEN CIRCUIT
1.
2.
Disconnect ABS actuator and electric unit (control unit) connector and wheel sensor connector of malfunction code No.
Check continuity between both wiring harness ends.
Sensor
ABS actuator and
electric unit (control unit)
Connector
Terminals
Wheel sensor
Continuity
Connector
14
Front LH
13
1
E18
26
Front RH
27
E125
Rear LH
12
2
1
B123
11
Rear RH
2
1
E117
29
28
Terminals
Yes
2
1
B122
2
OK or NG
OK
>> Replace the ABS actuator and electric unit (control unit). Refer to BRC-43, "Removal and Installation" .
NG
>> Repair the circuit.
Engine System Inspection
EFS004H7
INSPECTION PROCEDURE
1. SELF-DIAGNOSIS RESULT CHECK
Check self-diagnosis results.
Self-diagnosis results
ENGINE SIGNAL 1
ENGINE SIGNAL 2
ENGINE SIGNAL 3
ENGINE SIGNAL 4
ENGINE SIGNAL 5
ENGINE SIGNAL 6
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO
>> Inspection End.
Revision: May 2006
BRC-78
2007 Maxima
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
[VDC/TCS/ABS]
2. ENGINE SYSTEM INSPECTION
A
1. Perform ECM self-diagnosis and repair as necessary.
2. Perform ABS actuator and electric unit (control unit) self-diagnosis again.
OK or NG
OK
>> Inspection End.
NG
>> Repair as necessary.
B
C
ABS/TCS/VDC Control Unit Inspection
EFS004H8
INSPECTION PROCEDURE
1. SELF-DIAGNOSIS RESULT CHECK
D
Check self-diagnosis results.
E
Self-diagnosis results
CONTROLLER FAILURE
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO
>> Inspection End.
BRC
G
2. CHECK WHEEL SENSORS
Check all wheel sensors. Refer to BRC-77, "Wheel Sensor System Inspection" .
OK or NG
OK
>> Replace ABS actuator and electric unit (control unit). Refer to BRC-96, "Removal and Installation"
.
NG
>> Repair or replace as necessary.
Steering Angle Sensor System Inspection
H
I
EFS004H9
INSPECTION PROCEDURE
J
1. SELF-DIAGNOSIS RESULT CHECK
Check self-diagnosis results.
K
Self-diagnosis results
ST ANGLE SEN CIRCUIT
L
ST ANGLE SEN SIGNAL
ST ANG SEN COM CIR
M
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 3.
NO
>> GO TO 2.
2. DATA MONITOR CHECK
Conduct “DATA MONITOR” of the “STR ANGLE SIG” to check if the status is normal.
Steering condition
Data monitor
Straight-ahead
-5deg - +5deg
Turn wheel 90° to the right.
Approx. +90°
Turn wheel 90° to the left.
Approx. -90°
OK or NG
OK
>> Inspection End.
NG
>> GO TO 3.
Revision: May 2006
BRC-79
2007 Maxima
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
[VDC/TCS/ABS]
3. CONNECTOR INSPECTION
1.
Disconnect the ABS actuator and electric unit (control unit) connector E125 and steering angle sensor
M47.
2. Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace as necessary.
4.
1.
2.
CHECKING STEERING ANGLE SENSOR POWER AND GROUND
Turn the ignition switch ON.
Check voltage between steering angle sensor connector M47
and ground.
Terminals
Measured
value
(Approx.)
(+)
Steering angle sensor
connector
Terminal
1
M47
3
(-)
Ground
12V
12V
WFIA0398E
3.
Check resistance between steering angle sensor connector M47
and ground.
Terminals
(-)
Measured
value Ω
(Approx.)
Ground
0Ω
(+)
Steering angle sensor
connector
Terminal
M47
2
OK or NG
WFIA0399E
OK
>> Check the CAN communication system. Refer to BRC87, "CAN Communication System Inspection" . If the CAN communication system is OK, replace
spiral cable (steering angle sensor) and adjust neutral position of steering angle sensor. Refer to
BRC-93, "Adjustment of Steering Angle Sensor Neutral Position" .
NG
>> Repair the circuit.
Revision: May 2006
BRC-80
2007 Maxima
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
[VDC/TCS/ABS]
Yaw Rate/Side/Decel G Sensor System Inspection
EFS004HA
CAUTION:
Sudden turns (such as spin turns, acceleration turns), drifting, etc. When VDC function is OFF may
cause the yaw rate/side/decel G sensor system to indicate a problem. However this is not a problem if
normal operation can be resumed after restarting the engine.
A
B
INSPECTION PROCEDURE
1. SELF-DIAGNOSIS RESULT CHECK
C
Check self-diagnosis results.
Self-diagnosis results
D
YAW RATE SENSOR
LONGITUDINAL G-SENSOR
E
LATERAL G-SENSOR
CAUTION:
When on a turntable, such as at a parking structure entrance, or when on a moving object with the BRC
engine running, the VDC OFF indicator lamp might turn on and the self-diagnosis using the CONSULTII the yaw rate sensor system might be displayed, but in this case there is no problem with the yaw
rate sensor system. As soon as the vehicle leaves the turntable or moving object, restart the engine to
G
return the system to normal.
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
H
NO
>> Inspection End.
2. CONNECTOR INSPECTION
Disconnect the ABS actuator and electric unit (control unit) connector E125 and yaw rate/side/decel G sensor
connector M46.
Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace as necessary.
I
J
K
3. YAW RATE/SIDE/DECEL G SENSOR HARNESS INSPECTION
1.
2.
Turn the ignition switch OFF.
Check the continuity between the ABS actuator and electric unit (control unit) connector E125 and the
yaw rate/side/decel G sensor connector M46.
L
M
ABS actuator and electric unit
(control unit) connector E125
Yaw rate/side/decel G sensor
connector M46
19
1
36
2
35
3
34
4
4
5
6
6
Continuity
Continuity should exist.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace as necessary.
Revision: May 2006
BRC-81
2007 Maxima
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
[VDC/TCS/ABS]
4. YAW RATE/SIDE/DECEL G SENSOR INSPECTION
1.
2.
Connect the yaw rate/side/decel G sensor connector M46 and ABS actuator and electric unit (control unit)
connector E125.
Use “DATA MONITOR” to check the yaw rate/side/decel G sensor.
When stopped
YAW RATE SEN
(Data monitor standard)
-4 to +4 deg/s
Right hand turn
Left turn
Negative value
Positive value
Vehicle status
SIDE G-SENSOR
(Data monitor standard)
-1.1 to +1.1 m/s2
Negative value
Positive value
OK or NG
OK
>> Inspection End.
NG
>> Replace the yaw rate/side/decel G sensor. Refer to BRC-99, "Removal and Installation" .
Solenoid and VDC Change-Over Valve System Inspection
EFS004HB
INSPECTION PROCEDURE
1. SELF-DIAGNOSIS RESULT CHECK
Check self-diagnosis results.
Self-diagnosis results
FR LH IN ABS SOL
FR LH OUT ABS SOL
RR RH IN ABS SOL
RR RH OUT ABS SOL
FR RH IN ABS SOL
FR RH OUT ABS SOL
RR LH IN ABS SOL
RR LH OUT ABS SOL
CV 1
CV 2
SV 1
SV 2
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO
>> Inspection End.
2. CONNECTOR INSPECTION
1. Disconnect ABS actuator and electric unit (control unit) connector E125.
2. Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace as necessary.
Revision: May 2006
BRC-82
2007 Maxima
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
[VDC/TCS/ABS]
3.
1.
2.
CHECKING SOLENOID POWER AND GROUND
A
Disconnect ABS actuator and electric unit (control unit) connector E125.
Check voltage between ABS actuator and electric unit (control
unit) connector E125 and ground.
ABS actuator and electric unit
(control unit) connector E125
Body
ground
Measured
value
(Approx.)
16
—
12V
B
C
D
WFIA0111E
E
3.
Check resistance between ABS actuator and electric unit (control unit) connector E125 and body ground.
ABS actuator and electric unit
(control unit) connector E125
31
46
Body
ground
BRC
Measured
value Ω
(Approx.)
G
—
0Ω
OK or NG
OK
>> Perform self-diagnosis again. If the same results
appear, replace ABS actuator and electric unit (control
unit). Refer to BRC-96, "Removal and Installation" .
NG
>> Repair the circuit.
Actuator Motor, Motor Relay, and Circuit Inspection
H
WFIA0112E
I
EFS004HC
J
INSPECTION PROCEDURE
1. CHECKING SELF-DIAGNOSIS RESULTS
K
Check self-diagnosis results.
Self-diagnosis results
L
ACTUATOR RLY
PUMP MOTOR
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO
>> Inspection End.
M
2. CONNECTOR INSPECTION
Disconnect the ABS actuator and electric unit (control unit) connector E125.
Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace as necessary.
Revision: May 2006
BRC-83
2007 Maxima
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
[VDC/TCS/ABS]
3.
1.
CHECKING ABS MOTOR AND MOTOR RELAY POWER SYSTEM
Check voltage between ABS actuator and electric unit (control
unit) connector E125 and body ground.
ABS actuator and electric unit
(control unit) connector E125
Body
ground
Measured
value
(Approx.)
1
—
12V
WFIA0106E
2.
Check resistance between ABS actuator and electric unit (control unit) connector E125 and ground.
ABS actuator and electric unit
(control unit) connector E125
Body
ground
Measured
value
(Approx.)
46
—
0Ω
OK or NG
OK
>> Perform self-diagnosis again. If the same result
appears, replace ABS actuator and electric unit (control
unit). Refer to BRC-43, "Removal and Installation" .
NG
>> Repair the circuit.
Stop Lamp Switch System Inspection
WFIA0113E
EFS004HD
INSPECTION PROCEDURE
1. SELF-DIAGNOSIS RESULT CHECK
Check self-diagnosis results.
Self-diagnosis results
STOP LAMP SW 1
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO
>> Inspection End.
2. CONNECTOR INSPECTION
1.
Turn the ignition switch OFF and disconnect the ABS actuator and electric unit (control unit) connector
E125 and stop lamp switch connector E38.
2. Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace as necessary.
Revision: May 2006
BRC-84
2007 Maxima
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
[VDC/TCS/ABS]
3. STOP LAMP SWITCH INSPECTION
A
Check the voltage between the ABS actuator and electric unit (control unit) connector E125 terminal 23 and ground.
B
23 - Ground
Brake pedal depressed
: Battery voltage
(approx. 12V)
Brake pedal not depressed : Approx. 0V
C
OK or NG
OK
>> Connect the connectors and conduct ABS actuator and
electric unit (control unit) self-diagnosis.
NG
>> Repair the circuit.
D
WFIA0114E
ABS/TCS/VDC Control Unit Power and Ground Systems Inspection
EFS004HE
E
INSPECTION PROCEDURE
1. SELF-DIAGNOSIS RESULT CHECK
BRC
Check self-diagnosis results.
Self-diagnosis results
G
BATTERY VOLTAGE
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO
>> Inspection End.
H
2. CONNECTOR INSPECTION
I
1.
Turn the ignition switch OFF and disconnect the ABS actuator and electric unit (control unit) connector
E125.
2. Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace as necessary.
3. ABS/TCS/VDC CONTROL UNIT POWER AND GROUND CIRCUIT INSPECTION
J
K
L
Measure the voltage and continuity between the ABS actuator and electric unit (control unit) connector E125
and ground.
Signal name
ABS actuator and electric unit
(control unit) connector E125
Power supply
45
Ground
31
M
Ground
Measured value
Battery voltage (Approx. 12V)
—
46
Continuity should exist.
OK or NG
OK
>> Check the battery for loose terminals, low voltage, etc. Repair as necessary.
NG
>> Repair the circuit.
Revision: May 2006
BRC-85
2007 Maxima
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
[VDC/TCS/ABS]
Brake Fluid Level Switch System Inspection
EFS004HF
INSPECTION PROCEDURE
1. SELF-DIAGNOSIS RESULT CHECK
1.
2.
Check the brake reservoir tank fluid level. If the level is low, add brake fluid.
Erase the self-diagnosis results and check the self-diagnosis results.
Self-diagnosis results
BR FLUID LEVEL LOW
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO
>> Inspection End.
2. CONNECTOR INSPECTION
1.
Turn the ignition switch OFF and disconnect the ABS actuator and electric unit (control unit) connector
E125 and brake fluid level switch connector E21.
2. Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace as necessary.
3. CHECK THE HARNESS BETWEEN THE BRAKE FLUID LEVEL SWITCH AND THE ABS ACTUATOR
AND ELECTRIC UNIT (CONTROL UNIT)
Check the continuity between the brake fluid level switch connector E21 and the ABS actuator and electric unit
(control unit) connector E125.
ABS actuator and
electric unit (control
unit) connector E125
Brake fluid level
switch connector
E21
38
+
38
Ground
Ground
-
Continuity
Continuity should exist.
Continuity should not exist.
Continuity should exist.
OK or NG
OK
>> GO TO 4.
NG
>> Repair the circuit.
4. CHECK BRAKE FLUID LEVEL SWITCH
Check continuity between brake fluid level switch terminals + and -.
Continuity should not exist.
OK or NG
OK
>> Perform self-diagnosis again. If the same results appear, replace ABS actuator and electric unit
(control unit). Refer to BRC-96, "Removal and Installation" .
NG
>> Replace brake fluid level switch.
Revision: May 2006
BRC-86
2007 Maxima
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
[VDC/TCS/ABS]
CAN Communication System Inspection
EFS004HG
A
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1.
Turn ignition switch OFF, disconnect the ABS actuator and electric unit (control unit) connector, and check
the terminals for deformation, disconnection, looseness, and so on. If there is a malfunction, repair or
replace the terminal.
2. Reconnect connector to perform self-diagnosis.
Is “CAN COMM CIRCUIT” displayed in the self-diagnosis display items?
YES >> Print out the self-diagnosis results, and refer to LAN-44, "TROUBLE DIAGNOSIS" .
NO
>> Connector terminal connection is loose, damaged, open, or shorted.
Component Inspection
B
C
D
EFS004HH
VDC OFF SWITCH
E
Check the continuity between terminals 1 and 2.
1 -2
: Continuity should exist when pushing the
switch.
Continuity should not exist when releasing
the switch.
BRC
G
H
PFIA0307E
I
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M
Revision: May 2006
BRC-87
2007 Maxima
TROUBLE DIAGNOSES FOR SYMPTOMS
[VDC/TCS/ABS]
TROUBLE DIAGNOSES FOR SYMPTOMS
ABS Works Frequently
PFP:99999
EFS004HI
1. CHECK WARNING LAMP ACTIVATION
Make sure warning lamp remains off while driving.
OK or NG
OK
>> GO TO 2.
NG
>> Carry out self-diagnosis. Refer to BRC-70, "SELF-DIAGNOSIS" .
2. CHECK WHEEL SENSORS
Check the following.
●
Wheel sensor mounting for looseness
●
Wheel sensors for physical damage
●
Wheel sensor connectors for terminal damage or loose connections
OK or NG
OK
>> GO TO 3.
NG
>> Repair as necessary.
3. CHECK WHEEL BEARINGS
Check wheel bearing axial end play. Refer to FAX-5, "FRONT WHEEL BEARING" or RAX-5, "REAR WHEEL
BEARING" .
OK or NG
OK
>> GO TO 4.
NG
>> Repair as necessary.
4. CHECK BRAKE FLUID PRESSURE
Check brake fluid pressure distribution.
Refer to BR-36, "Inspection" .
Is brake fluid pressure distribution normal?
YES >> Inspection End.
NO
>> Perform Basic Inspection. Refer to BRC-66, "Basic Inspection" .
Revision: May 2006
BRC-88
2007 Maxima
TROUBLE DIAGNOSES FOR SYMPTOMS
[VDC/TCS/ABS]
Unexpected Pedal Action
EFS004HJ
A
1. CHECK WARNING LAMP ACTIVATION
B
Make sure warning lamp remains off while driving.
OK or NG
OK
>> GO TO 2.
NG
>> Carry out self-diagnosis. Refer to BRC-70, "SELF-DIAGNOSIS" .
C
2. CHECK BRAKE PEDAL STROKE
D
Check brake pedal stroke.
Is pedal stroke excessive?
YES >> Perform Basic Inspection. Refer to BRC-66, "Basic
Inspection" .
NO
>> GO TO 3.
E
BRC
G
SBR540A
3. CHECK CONNECTOR AND BRAKING PERFORMANCE
H
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check brake effectiveness.
NOTE:
Driving the vehicle with the ABS actuator and electric unit (control unit) disconnected may induce DTCs in
electrical control units using CAN communication. After the inspection, clear all DTCs. Refer to LAN-4, "SYSTEM DESCRIPTION" .
OK or NG
OK
>> GO TO 4.
NG
>> Perform Basic Inspection. Refer to BRC-66, "Basic Inspection" .
I
J
K
4. CHECK WHEEL SENSORS
Check the following.
●
Wheel sensor mounting for looseness
●
Wheel sensors for physical damage
●
Wheel sensor connectors for terminal damage or loose connections
OK or NG
OK
>> Check ABS actuator and electric unit (control unit) pin terminals for damage and the connection of
harness connector. Reconnect ABS actuator and electric unit (control unit) harness connector.
Then retest.
NG
>> Repair as necessary.
Revision: May 2006
BRC-89
2007 Maxima
L
M
TROUBLE DIAGNOSES FOR SYMPTOMS
[VDC/TCS/ABS]
Long Stopping Distance
EFS004HK
1. CHECK BASE BRAKING SYSTEM PERFORMANCE
1. Disable ABS by disconnecting ABS actuator and electric unit (control unit) connector.
2. Drive vehicle and check to see if stopping distance is still long.
NOTE:
Driving the vehicle with the ABS actuator and electric unit (control unit) disconnected may induce DTCs in
electrical control units using CAN communication. After the inspection, clear all DTCs. Refer to LAN-4, "SYSTEM DESCRIPTION" .
OK or NG
OK
>> Go to BRC-88, "ABS Works Frequently" .
NG
>> Perform Basic Inspection. Refer to BRC-66, "Basic Inspection" .
NOTE:
Stopping distance may be longer than vehicles without ABS when road condition is slippery.
ABS Does Not Work
EFS004HL
CAUTION:
The ABS does not operate when the vehicle speed is 10 km/h (6 MPH) or less.
1. CHECK WARNING LAMP ACTIVATION
Turn ignition switch ON and check for warning lamp activation.
Warning lamp should activate for approximately 2 seconds after turning the ignition switch ON.
OK or NG
OK
>> Carry out self-diagnosis. Refer to BRC-70, "SELF-DIAGNOSIS" .
NG
>> Go to BRC-91, "ABS Warning Lamp Does Not Come On When Ignition Switch Is Turned On" .
●
Pedal Vibration or ABS Operation Noise
EFS004HM
NOTE:
During ABS activation, pedal vibration may be felt and a noise may be heard. This is normal and does not indicate a malfunction.
1. CHECK SYMPTOM
1. Apply brake.
2. Start engine.
Does the symptom occur only when engine is started?
YES >> Carry out self-diagnosis. Refer to BRC-70, "SELF-DIAGNOSIS" .
NO
>> GO TO 2.
2. RECHECK SYMPTOM
Does the symptom occur only when electrical equipment switches (such as headlamp) are turned on?
YES
NO
>> Check for radio, antenna or related wiring that is routed too close to the ABS actuator and electric
unit (control unit) and reroute as necessary.
>> Go to BRC-88, "ABS Works Frequently" .
Revision: May 2006
BRC-90
2007 Maxima
TROUBLE DIAGNOSES FOR SYMPTOMS
[VDC/TCS/ABS]
ABS Warning Lamp Does Not Come On When Ignition Switch Is Turned On
EFS004HN
A
1. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) FUSES
Check 40A fusible link i and 50A fusible link j for ABS actuator and electric unit (control unit). For fusible link
layout, refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK
>> GO TO 2.
NG
>> If fusible link is blown, be sure to eliminate cause of problem before replacing.
B
C
2. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY CIRCUITS
D
1.
2.
E
Disconnect ABS actuator and electric unit (control unit) connector.
Check voltage between ABS actuator and electric unit (control
unit) connector terminal 1 and ground and terminal 16 and
ground.
Does battery voltage exist?
YES >> GO TO 3.
NO
>> Repair harness or connectors between fusible link and
ABS actuator and electric unit (control unit).
BRC
G
WFIA0116E
H
3. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT
I
Check continuity between ABS actuator and electric unit (control
unit) connector E125 terminal 31 and ground and terminal 46 and
ground.
Does continuity exist?
YES >> Replace ABS actuator and electric unit (control unit).
Refer to BRC-96, "Removal and Installation" .
NO
>> Repair harness or connectors between ABS actuator
and electric unit (control unit) and ground.
J
K
WFIA0112E
ABS Warning Lamp Stays On When Ignition Switch Is Turned On
L
EFS004HO
M
1. CARRY OUT SELF-DIAGNOSIS
Carry out self-diagnosis. Refer to BRC-70, "SELF-DIAGNOSIS" .
Are malfunctions detected in self-diagnosis?
YES >> Refer to BRC-71, "Display Item List" .
NO
>> Refer to DI-39, "WARNING LAMPS" .
Revision: May 2006
BRC-91
2007 Maxima
TROUBLE DIAGNOSES FOR SYMPTOMS
[VDC/TCS/ABS]
Vehicle Jerks During TCS/VDC Activation
EFS004HP
1. ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
Perform ABS actuator and electric unit (control unit) self-diagnosis.
Are self-diagnosis result items displayed?
YES >> After checking and repairing the applicable item, perform the ABS actuator and electric unit (control unit) self-diagnosis again.
NO
>> GO TO 2.
2. ENGINE SPEED SIGNAL INSPECTION
Perform data monitor with CONSULT-II for the ABS actuator and electric unit (control unit).
Is the engine speed at idle 400 rpm or higher?
YES >> GO TO 4.
NO
>> GO TO 3.
3. ECM SELF-DIAGNOSIS
Perform ECM self-diagnosis.
Are self-diagnosis result items displayed?
YES >> After checking and repairing the applicable item, perform the ECM self-diagnosis again.
NO
>> GO TO 4.
4. TCM SELF-DIAGNOSIS
Perform TCM self-diagnosis.
Are self-diagnosis result items displayed?
YES >> After checking and repairing the applicable item, perform the TCM self-diagnosis again.
NO
>> GO TO 5.
5. CONNECTOR INSPECTION
Disconnect the ABS actuator and electric unit (control unit) connector and the ECM connectors and check the
terminals for deformation, disconnection, looseness or damage.
OK or NG
OK
>> GO TO 6.
NG
>> Repair or replace the connector terminal.
6. CAN COMMUNICATION INSPECTION
Check the CAN communication system. Refer to BRC-87, "CAN Communication System Inspection" .
OK or NG
OK
>> Inspection End.
NG
>> Reconnect the connectors, and perform ABS actuator and electric unit (control unit) self-diagnosis.
Revision: May 2006
BRC-92
2007 Maxima
ON-VEHICLE SERVICE
[VDC/TCS/ABS]
ON-VEHICLE SERVICE
Adjustment of Steering Angle Sensor Neutral Position
PFP:00000
A
EFS004HQ
After removing/installing or replacing ABS actuator and electric unit (control unit), steering angle sensor, steering and suspension components which affect wheel alignment or after adjusting wheel alignment, be sure to
adjust neutral position of steering angle sensor before running vehicle.
NOTE:
Adjustment of steering angle sensor neutral position requires CONSULT-II.
1. Stop vehicle with front wheels in straight-ahead position.
2. Connect CONSULT-II and CONSULT-II CONVERTER to data
link connector on vehicle, and turn ignition switch ON (do not
start engine).
3. Touch “START (NISSAN BASED VHCL)”, “ABS”, “WORK SUPPORT” and “ST ANGLE SENSOR ADJUSTMENT” on CONSULT-II screen in this order.
B
C
D
E
BRC
BBIA0002E
4.
Touch “START”.
CAUTION:
Do not touch steering wheel while adjusting steering angle
sensor.
5. After approximately 10 seconds, touch “END”. (After approximately 60 seconds, it ends automatically.)
6. Turn ignition switch OFF, then turn it ON again.
7. Run vehicle with front wheels in straight-ahead position, then
stop.
8. Select “DATA MONITOR”, “SELECTION FROM MENU”, and
“STR ANGLE SIG” on CONSULT-II screen. Then check that
“STR ANGLE SIG” is within 0±2.5 deg. If value is more than specification, repeat steps 1 to 5.
9. Erase memory of ABS actuator and electric unit (control unit) and ECM.
10. Turn ignition switch to OFF.
G
H
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WFIA0239E
J
K
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M
Revision: May 2006
BRC-93
2007 Maxima
WHEEL SENSORS
[VDC/TCS/ABS]
WHEEL SENSORS
Removal and Installation
PFP:47910
EFS00682
LFIA0078E
CAUTION:
●
Be careful not to damage wheel sensor edge and sensor rotor teeth.
●
When removing the front or rear wheel hub assembly, first remove the wheel sensor from the
assembly. Failure to do so may result in damage to the wheel sensor wires making the sensor
inoperative.
CAUTION:
●
Pull out the wheel sensor, being careful to turn it as little as possible. Do not pull on the wheel sensor harness.
●
Installation should be performed while paying attention to the following, and then tighten mounting bolts and nuts to the specified torque.
–
Check if foreign objects such as iron fragments are adhered to the pick-up part of the sensor or to
the inside of the hole for the wheel sensor, or if a foreign object is caught in the mating surface of
the sensor rotor. If something wrong is found, fix it and then install the wheel sensor.
REMOVAL
1.
2.
3.
Remove wheel and tire using power tool.
Disconnet wheel sensor harness connector and remove harness wire from attachment points.
Remove wheel sensor bolt and wheel sensor.
INSTALLATION
Installation is in the reverse order of removal.
●
When installing wheel and tire, refer to WT-7, "Tire Rotation" .
Revision: May 2006
BRC-94
2007 Maxima
SENSOR ROTOR
[VDC/TCS/ABS]
SENSOR ROTOR
Removal and Installation
PFP:47970
A
EFS00683
REMOVAL
Front
1.
2.
B
Remove the front wheel hub. Refer to FAX-6, "Removal and Installation" .
Remove the sensor rotor from the drive shaft using a suitable
tool as shown.
C
D
E
LFIA0079E
BRC
Rear
The rear wheel sensor rotor is built into the rear wheel hub. For removal and installation procedure, refer to
RAX-6, "Removal and Installation" .
INSTALLATION
Front
G
Installation is in the reverse order of removal.
●
Install the sensor rotor using a wooden block and suitable tool
as shown.
●
Always replace sensor rotor with new one.
H
I
J
K
LFIA0083E
Rear
The rear wheel sensor rotor is built into the rear wheel hub. For removal and installation procedure, refer to
RAX-6, "Removal and Installation" .
L
M
Revision: May 2006
BRC-95
2007 Maxima
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)
[VDC/TCS/ABS]
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)
Removal and Installation
PFP:47660
EFS004HT
WFIA0104E
REMOVAL
1.
2.
3.
4.
5.
6.
7.
8.
Disconnect battery negitive terminal.
Remove windshield wiper and linkage assembly. Refer to WW-21, "Removal" .
Drain brake fluid. Refer to BR-8, "Changing Brake Fluid" .
Discharge the A/C refrigerant. Refer to ATC-130, "HFC-134a (R-134a) Service Procedure" .
Disconnect and remove high-pressure and low-pressure A/C pipes to allow access to ABS actuator and
electric unit (control unit). Refer to ATC-132, "Components" .
Disconnect harness connectors from ABS actuator and electric unit (control unit).
Disconnect brake pipes, noting their location for installation.
Remove bolts and ABS actuator and electric unit (control unit).
INSTALLATION
CAUTION:
After installation of ABS actuator and electric unit (control unit), refill brake fluid. Then bleed air from
system. Refer to BR-8, "Bleeding Brake System" .
1. Position ABS actuator and electric unit (control unit) in vehicle.
2. Connect brake pipes and bolts temporarily.
3. Tighten bolts and brake pipes to specification. Refer to BR-9, "Hydraulic Circuit" .
4. Connect ABS actuator and electric unit (control unit) harness connectors.
5. Install and connect high-pressure and low-pressure A/C pipes. Refer to ATC-132, "Components" .
6. Install windshield wiper and linkage assembly. Refer to WW-21, "Installation" .
Revision: May 2006
BRC-96
2007 Maxima
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)
[VDC/TCS/ABS]
7.
8.
9.
Connect battery negitive terminal.
Evacuate and recharge the A/C system. Refer to ATC-130, "HFC-134a (R-134a) Service Procedure" .
Adjust the steering angle sensor. Refer to BRC-93, "Adjustment of Steering Angle Sensor Neutral Position" .
A
B
C
D
E
BRC
G
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Revision: May 2006
BRC-97
2007 Maxima
STEERING ANGLE SENSOR
[VDC/TCS/ABS]
STEERING ANGLE SENSOR
Removal and Installation
PFP:25554
EFS004HU
The steering angle sensor is built into the spiral cable. For removal and installation procedure, refer to SRS43, "Removal and Installation" .
Revision: May 2006
BRC-98
2007 Maxima
G SENSOR
[VDC/TCS/ABS]
G SENSOR
Removal and Installation
PFP:47930
A
EFS004HV
REMOVAL
1.
2.
3.
Remove center console. Refer to IP-17, "Front Center Console" .
Disconnect harness connector.
Remove attaching nuts and remove yaw rate/side/decel G sensor.
CAUTION:
●
Do not drop or strike the yaw rate/side/decel G sensor.
●
Do not use power tools to remove or install yaw rate/side/
decel G sensor.
B
C
D
E
PFIA0450E
BRC
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
●
Do not drop or strike the yaw rate/side/decel G sensor.
G
H
I
J
K
L
M
Revision: May 2006
BRC-99
2007 Maxima
G SENSOR
[VDC/TCS/ABS]
Revision: May 2006
BRC-100
2007 Maxima
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