Brake Warning Light Does Not Come ON

BRAKE CONTROL: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: Brake Warning Light does not Come ON
- Brake Warning Light does not Come ON

WIRING DIAGRAM

Refer to Brake Warning Light Remains ON Brake Warning Light Remains ON.



NOTICE:
When replace the skid control ECU, perform initialization of linear solenoid valve and calibration Initialization.

PROCEDURE

1. INSPECT CAN COMMUNICATION SYSTEM

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

Result:





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

2. INSPECT MULTIPLEX COMMUNICATION SYSTEM

(a) Check if the multiplex communication system DTC is output Reading and Clearing Diagnostic Trouble Codes.

Result:





B -- REPAIR MULTIPLEX COMMUNICATION SYSTEM
A -- Continue to next step.

3. INSPECT BRAKE WARNING LIGHT

(a) Disconnect the skid control ECU connector.

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

(c) Check if the BRAKE warning light comes on.

OK:

Brake 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.

NG -- INSPECT COMBINATION METER ASSEMBLY

OK -- REPLACE SKID CONTROL ECU

4. INSPECT COMBINATION METER ASSEMBLY

(a) Check the combination meter assembly Problem Symptoms Table.

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 -- END