Brake Warning Light does not Come ON

BRAKE CONTROL: ANTI-LOCK BRAKE SYSTEM: Brake Warning Light does not Come ON

Brake Warning Light does not Come ON

WIRING DIAGRAM









INSPECTION PROCEDURE
HINT: Check the condition of each related circuit connector before troubleshooting Electronic Circuit Inspection Procedure.

PROCEDURE

1. INSPECT CAN COMMUNICATION SYSTEM
(a) Check if a CAN communication system DTC is output ABS (Antilock Brake System).
Result:






B -- REPAIR CAN COMMUNICATION SYSTEM
A -- Continue to next step.
2. INSPECT BRAKE WARNING LIGHT
HINT: When disconnecting the skid control ECU connector, the brake warning light comes on.
(a) Turn the ignition switch off.
(b) Disconnect the skid control ECU connector.
(c) Turn the ignition switch on (IG).
(d) Check that the brake warning light comes on.
OK:
The brake warning light comes on.
NG -- INSPECT COMBINATION METER ASSEMBLY
OK -- REPLACE BRAKE ACTUATOR ASSEMBLY
3. INSPECT COMBINATION METER ASSEMBLY
(a) Connect Techstream to the DLC3.
(b) Select the "Active Test" on Techstream Data List / Active Test.

Active Test: Combination Meter





(c) Check the ABS warning light operation.
OK:
The BRAKE warning light turns on or off in accordance with Techstream.
NG -- REPLACE COMBINATION METER ASSEMBLY
OK -- REPLACE BRAKE ACTUATOR ASSEMBLY