Description

ABS function and EBD function operates in excessive operation frequency.

Diagnosis Procedure

1.CHECK BRAKING FORCE

Check brake force using a brake tester.

Is the inspection result normal? YES >> GO TO 2.

NO >> Check brake system.

2.CHECK FRONT AND REAR AXLE

Check that there is no excessive looseness in front and rear axle.

• Front axle: Refer to FAX-41, "Inspection".

• Rear axle: Refer to RAX-4, "Inspection" Is the inspection result normal? YES >> GO TO 3.

NO >> Repair or replace error-detected parts.

3.CHECK WHEEL SENSOR

Check wheel sensor.

• Check installation and damage of wheel sensor.

• Check connection of wheel sensor harness connector.

• Check terminal of wheel sensor harness connector.

Is the inspection result normal? YES >> GO TO 4.

NO >> Repair or replace wheel sensor.

• Front wheel sensor: Refer to BRC-84, "FRONT WHEEL SENSOR : Removal and Installation".

• Rear wheel sensor: Refer to BRC-86, "REAR WHEEL SENSOR : Removal and Installation".

4.CHECK SENSOR ROTOR

Check that there is no looseness, damage or foreign material on sensor rotor.

Is the inspection result normal? YES >> GO TO 5.

NO >> Repair installation or replace sensor rotor.

• Front sensor rotor: Refer to BRC-88, "FRONT SENSOR ROTOR : Removal and Installation".

• Rear sensor rotor. Refer to BRC-86, "REAR WHEEL SENSOR : Removal and Installation".

5.CHECK WARNING LAMP TURNS OFF

Check that ABS warning lamp and brake warning lamp turn OFF approx. 1 second after key switch is turned ON and stay in OFF status during driving.

CAUTION:
Brake warning lamp turns ON when parking brake is operated (parking brake switch is ON) or brake fluid is less than the specified level (brake fluid level switch is ON).

Is the inspection result normal? YES >> Normal NO >> Perform self-diagnosis for “ABS” with CONSULT-III.