Basic Inspection. Nissan Maxima

TROUBLE DIAGNOSIS

[ABS]

Basic Inspection

BRAKE FLUID LEVEL, FLUID LEAK, AND BRAKE PAD INSPECTION

1.

Check fluid level in the brake fluid reservoir. If fluid level is low, add fluid.

EFS002Z7

2.

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.

3.

Check the brake pads for excessive wear.

A

B

C

D

E

BRC

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 INSPECTION

1.

Make sure ABS warning lamp turns on for approximately 1 second when the ignition switch is turned ON.

Check CAN communications. If there are no errors with CAN communication system, check combination meter. Refer to DI-5, "COMBINATION METERS" .

2.

Make sure the lamp turns off approximately 1 second after the ignition switch is turned ON. If the lamp does not turn off, conduct self-diagnosis.

3.

Make sure ABS warning lamp turns off approximately 2 seconds after the engine is started. If ABS warning lamp has not turned off 10 seconds after the engine has been started, conduct self-diagnosis of the

ABS actuator and electric unit (control unit).

4.

After conducting the self-diagnosis, be sure to erase the error memory. Refer to

BRC-24, "CONSULT-II

Function" .

G

H

I

J

Warning Lamp and Indicator Timing

EFS002Z8

×

: ON – : Lamp OFF

K

Condition

ABS warning lamp

–

Remarks

–

L

When the ignition switch is OFF

After the ignition switch is turned ON

For approx. 0.5 seconds

Ignition switch ON

Approx. 0.5 seconds later

×

–

–

Lamp goes off approx. 2 seconds after the engine start.

M

×

ABS malfunction

×

–

When the ABS control unit is malfunctioning (power supply or ground malfunction).

BRC-21