ABS Warning Light Does Not Come ON

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM (for ADVICS Made): ABS Warning Light does not Come ON
- ABS Warning Light does not Come ON

DESCRIPTION

The skid control ECU is connected to the combination meter via CAN communication.

WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
When replacing the brake actuator assembly, perform zero point calibration Programming and Relearning.

PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM

(a) Check if the CAN communication system DTC is output Diagnosis System.

Result:





B -- INSPECT CAN COMMUNICATION SYSTEM
A -- Continue to next step.

2. CHECK ABS WARNING LIGHT

(a) Disconnect the skid control ECU connector.

(b) Turn the ignition switch on (IG).

(c) Check that the ABS warning light comes on.

OK:

The ABS warning light comes on.

HINT
If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part Problem Symptoms Table.

OK -- REPLACE BRAKE ACTUATOR ASSEMBLY
NG -- Continue to next step.

3. INSPECT COMBINATION METER ASSEMBLY

(a) Turn the ignition switch off.

(b) Reconnect the skid control ECU connector.

(c) Perform Active Test of the combination meter (meter CPU) using Techstream Meter / Gauge System.

OK:

The ABS warning light turns on or off in accordance with Techstream.

HINT
If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step Problem Symptoms Table.

NG -- REPLACE COMBINATION METER ASSEMBLY

OK -- REPLACE BRAKE ACTUATOR ASSEMBLY