DATA MONITOR. Nissan Maxima

TROUBLE DIAGNOSIS

[VDC/TCS/ABS]

Self-diagnostic item

LATERAL G-SENSOR

[C1146]

BR FLUID LEVEL LOW

[C1155]

ENGINE SPEED SIG

ENGINE SIGNAL 1

[C1130]

STOP LAMP SW 2

[C1176]

Malfunction detecting condition

Lateral G-sensor is malfunctioning, or signal line of lateral G-sensor is open or shorted.

Check system

BRC-124, "Yaw Rate/

Side/Decel G Sensor

System Inspection"

Brake fluid level drops or circuit between ABS actuator and electric unit (control unit) and brake fluid level switch is open or shorted.

DI-45, "WARNING

LAMPS"

Engine speed signal from ECM is abnormal.

ECM judges the communication between ABS/TCS/VDC control unit and ECM is abnormal.

ASCD brake switch or circuit malfunction.

BRC-122, "Engine System Inspection"

BRC-130, "CAN Communication System

Inspection"

EC-695, "AUTOMATIC

SPEED CONTROL

DEVICE (ASCD)"

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.

Note 3: "ACTUATOR RLY" on the CONSULT-II self-diagnosis results indicates the malfunction of the actuator motor relay or circuit.

DATA MONITOR

Operation Procedure

1.

After turning OFF the ignition switch, connect CONSULT-II and the 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 carry out CAN communication.

2.

Touch “START (NISSAN BASED VHCL)”, “ABS”, “DATA MONITOR” in order on the CONSULT-II screen.

If “ABS” is not indicated, go to GI-36, "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 system selection screen. In this case, repeat the operation from step 2.

3.

Return to the Monitor Item Selection screen, and touch “C/U INPUT ITEM”, “MAIN ITEM” or “ITEM MENU

SELECTION”. Refer to the following information.

4.

When “START” is touched, the data monitor screen is displayed.

Display Item List

Item

(Unit)

ECU INPUT

SIGNALS

Data monitor item selection

MAIN

SIGNALS

SELECTION

FROM

MENU

CAN DIAG

SUPPORT

MNTR

Remarks

GEAR

FR RH SENSOR

(km/h, MPH)

FR LH SENSOR

(km/h, MPH)

RR RH SENSOR

(km/h, MPH)

×

×

×

×

×

×

×

×

×

×

×

×

–

–

–

–

Gear position judged by PNP switch signal is displayed.

Wheel speed calculated by front RH wheel sensor signal is displayed.

Wheel speed calculated by front LH wheel sensor signal is displayed.

Wheel speed calculated by rear RH wheel sensor signal is displayed.

BRC-116

Item

(Unit)

RR LH SENSOR

(km/h, MPH)

BATTERY VOLT

(V)

SLCT LVR POSI

ACCEL POS SIG

(%)

ENGINE SPEED

(rpm)

STR ANGLE SIG

(deg)

YAW RATE SEN

(d/s)

DECEL G SEN

(d/s)

SIDE G-SENSOR

(m/s

2

)

PRESS SENSOR

(bar)

STOP LAMP SW

(ON/OFF)

OFF SW

(ON/OFF)

ABS WARN LAMP

(ON/OFF)

SLIP LAMP

(ON/OFF)

FR LH IN SOL

(ON/OFF)

FR LH OUT SOL

(ON/OFF)

RR RH IN SOL

(ON/OFF)

RR RH OUT SOL

(ON/OFF)

FR RH IN SOL

(ON/OFF)

FR RH OUT SOL

(ON/OFF)

RR LH IN SOL

(ON/OFF)

RR LH OUT SOL

(ON/OFF)

TROUBLE DIAGNOSIS

[VDC/TCS/ABS]

ECU INPUT

SIGNALS

Data monitor item selection

MAIN

SIGNALS

SELECTION

FROM

MENU

× × ×

CAN DIAG

SUPPORT

MNTR

–

×

×

×

×

×

×

×

×

×

×

×

–

–

–

–

–

–

–

–

–

–

×

×

–

×

–

×

×

–

–

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

Remarks

Wheel speed calculated by rear LH wheel sensor signal is displayed.

Voltage supplied to ABS actuator and electric unit (control unit) is displayed.

Shift position judged by PNP switch signal.

Throttle valve open/close status judged by LAN communication signal is displayed.

Engine speed judged by LAN communication signal is displayed.

Steering angle detected by steering angle sensor is displayed.

Yaw rate detected by yaw rate sensor is displayed.

Longitudinal acceleration detected by Decel G-sensor is displayed.

Transverse acceleration detected by side G-sensor is displayed.

Brake fluid pressure detected by pressure sensor is displayed.

Stop lamp switch (ON/OFF) status is displayed.

VDC OFF switch (ON/OFF) status is displayed.

ABS warning lamp (ON/OFF) status is displayed.

SLIP indicator lamp (ON/

OFF) status is displayed.

Front LH IN ABS solenoid

(ON/OFF) status is displayed.

Front LH OUT ABS solenoid

(ON/OFF) status is displayed.

Rear RH IN ABS solenoid

(ON/OFF) status is displayed.

Rear RH OUT ABS solenoid

(ON/OFF) status is displayed.

Front RH IN ABS solenoid

(ON/OFF) status is displayed.

Front RH OUT ABS solenoid

(ON/OFF) status is displayed.

Rear LH IN ABS solenoid

(ON/OFF) status is displayed.

Rear LH OUT ABS solenoid

(ON/OFF) status is displayed.

BRC-117

A

B

C

D

E

BRC

G

H

I

J

K

L

M

Item

(Unit)

OFF LAMP

(ON/OFF)

MOTOR RELAY

(ON/OFF)

ACTUATOR RLY

(ON/OFF)

CV1

(ON/OFF)

CV2

(ON/OFF)

SV1

(ON/OFF)

SV2

(ON/OFF)

VDC FAIL SIG

(ON/OFF)

TCS FAIL SIG

(ON/OFF)

ABS FAIL SIG

(ON/OFF)

EBD FAIL SIG

(ON/OFF)

FLUID LEV SW

(ON/OFF)

EBD SIGNAL

(ON/OFF)

ABS SIGNAL

(ON/OFF)

TCS SIGNAL

(ON/OFF)

VDC SIGNAL

(ON/OFF)

CAN COMM

(OK/NG)

TROUBLE DIAGNOSIS

[VDC/TCS/ABS]

ECU INPUT

SIGNALS

–

Data monitor item selection

MAIN

SIGNALS

SELECTION

FROM

MENU

× ×

–

–

–

–

–

–

–

–

–

–

×

–

–

–

–

–

×

×

–

–

–

–

–

–

–

–

–

–

–

–

–

–

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

–

CAN DIAG

SUPPORT

MNTR

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

×

Remarks

OFF Lamp (ON/OFF) status is displayed.

ABS motor relay signal (ON/

OFF) status is displayed.

ABS actuator relay signal

(ON/OFF) status is displayed.

Front side switch-over solenoid valve (cut valve) (ON/

OFF) status is displayed.

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.

Rear side switch-over solenoid valve (suction valve)

(ON/OFF) status is displayed.

VDC fail signal (ON/OFF) status is displayed.

TCS fail signal (ON/OFF) status is displayed.

ABS fail signal (ON/OFF) status is displayed.

EBD fail signal (ON/OFF) status is displayed.

Brake fluid level switch (ON/

OFF) status is displayed.

EBD operation (ON/OFF) status is displayed.

ABS operation (ON/OFF) status is displayed.

TCS operation (ON/OFF) status is displayed.

VDC operation (ON/OFF) status is displayed.

CAN communication signal

(OK/NG) status is displayed.

BRC-118