Vehicle Stability Control System Brake Warning Light Does Not Come On

Brake. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
Brake Control. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK CAN COMMUNICATION SYSTEM

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (BRAKE WARNING LIGHT)

INSPECT COMBINATION METER ASSEMBLY

VEHICLE STABILITY CONTROL SYSTEM - Brake Warning Light does not Come ON


WIRING DIAGRAM

Refer to the brake warning light circuit (RAV4_ACA30 RM000001CGN02OX_02.html).

INSPECTION PROCEDURE

NOTICE:
When replacing the brake actuator assembly, perform zero point calibration (RAV4_ACA30 RM000001K1O00SX.html).
1.CHECK CAN COMMUNICATION SYSTEM

  1. Check if a CAN communication system DTC is output (RAV4_ACA30 RM000001W16007X.html).

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


B
REPAIR CAN COMMUNICATION SYSTEM (RAV4_ACA30 RM000001W16007X.html)
A


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

  1. Connect the intelligent tester to the DLC3.

  1. Start the engine.

  1. Select the Active Test mode on the intelligent tester (RAV4_ACA30 RM000000ONK01EX.html).

    ABS/VSC/TRC:
    Tester Display
    		Test Part
    		Control Range
    		Diagnostic Note
    Brake Warning Light
    		Brake warning light
    		Warning light ON / OFF
    		Observe the combination meter.

    OK:
    The brake warning light turns on or off.


OK
REPLACE BRAKE ACTUATOR ASSEMBLY (RAV4_ACA30 RM000001XV200PX.html)
NG


3.INSPECT COMBINATION METER ASSEMBLY

  1. Inspect the combination meter (RAV4_ACA30 RM0000020M0001X.html).



NG
REPLACE COMBINATION METER ASSEMBLY (RAV4_ACA30 RM000001RH400AX.html)
OK

REPLACE BRAKE ACTUATOR ASSEMBLY (RAV4_ACA30 RM000001XV200PX.html)