GSIC - Global Service Information Center

# ANTI-LOCK BRAKE SYSTEM > PROBLEM SYMPTOMS TABLE

## for Preparation Click here

HINT:

1. Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
2. Inspect the fuses and relays related to this system before inspecting the suspected areas below.

NOTICE:

  When replacing the skid control ECU, sensor, etc., turn the ignition switch OFF.

Anti-lock brake system
Symptom | Suspected area | See page
ABS does not operate | 1. IG power source circuit (ground circuit) | Click here
2. Front speed sensor circuit | Click here
3. Rear speed sensor circuit | Click here
4. Brake actuator (hydraulic circuit) | Click here
When above areas (1 to 4) are all normal but problem still occurs, replace skid control ECU | -
ABS does not operate properly | 1. Front speed sensor circuit | Click here
2. Rear speed sensor circuit | Click here
3. Stop light switch circuit | Click here
4. Brake actuator (hydraulic circuit) | Click here
When above areas (1 to 4) are all normal but problem still occurs, replace skid control ECU | -
ABS warning light malfunction | 1. ABS warning light circuit | Click here
2. Skid control ECU | -
DTC check cannot be performed | 1. ABS warning light circuit | Click here
2. TC terminal circuit | Click here
When above areas (1 and 2) are normal but problem still occurs, replace skid control ECU | -
Speed sensor signal check cannot be performed | 1. TS terminal circuit | Click here
2. Skid control ECU | -