Brake Control Warning Light Remains On

BRAKE CONTROL: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: Brake Control Warning Light Remains ON

Brake Control Warning Light Remains ON

DESCRIPTION

If the ECU stores a DTC, the brake warning light / yellow (minor malfunction) comes on in the combination meter.
The skid control ECU is connected to the combination meter via CAN communication.

WIRING DIAGRAM





INSPECTION PROCEDURE
NOTE:
When replacing the skid control ECU, perform initialization of linear solenoid valve and calibration Programming and Relearning.

PROCEDURE

1. INSPECT CAN COMMUNICATION SYSTEM
(a) Check if the CAN communication system DTC is output CAN Communication System.

Result





B -- GO TO CAN COMMUNICATION SYSTEM
A -- Continue to next step.

2. INSPECT IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED
(a) Check the skid control ECU connector's connection.
OK:
The connector is securely connected.
NG -- CONNECT CONNECTOR TO ECU CORRECTLY
OK -- Continue to next step.

3. INSPECT BATTERY
(a) Check the battery voltage.
Standard voltage:
11 to 14 V
NG -- INSPECT CHARGING SYSTEM
OK -- Continue to next step.

4. INSPECT COMBINATION METER ASSEMBLY
(a) Check the combination meter How To Proceed With Troubleshooting.
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 -- REPLACE COMBINATION METER ASSEMBLY
OK -- REPLACE SKID CONTROL ECU