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

for Preparation Click here


WIRING DIAGRAM

Refer to the brake warning light circuit (Click here).

INSPECTION PROCEDURE

1.CHECK CAN COMMUNICATION SYSTEM

  1. Check if the CAN communication system DTC is output (Click here).

    Result 
    Result
    		Proceed to
    DTC is not output
    		A
    DTC is output
    		B


B
GO TO CAN COMMUNICATION SYSTEM (Click here)
A


2.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (BRAKE WARNING LIGHT)

  1. Select the Active Test, generate a control command, and then check that the BRAKE warning light operates.

    Skid control ECU 
    Tester Display
    		Test Part
    		Control Range
    		Diagnostic Note
    Brake Warning Light
    		Turns Brake warning light
    		ON or OFF
    		Observe combination meter

    OK:
    The BRAKE warning light turns on or off.


OK
REPLACE BRAKE ACTUATOR ASSEMBLY (Click here)
NG


3.CHECK COMBINATION METER

  1. Check the combination meter (Click here).



NG
REPLACE COMBINATION METER (Click here)
OK

REPLACE BRAKE ACTUATOR ASSEMBLY (Click here)