ELECTRONICALLY CONTROLLED BRAKE SYSTEM > Brake Control Warning Light does not Come ON

for Preparation Click here


WIRING DIAGRAM

(Click here).

INSPECTION PROCEDURE

NOTICE:
When replacing the skid control ECU, perform initialization of linear solenoid valve and calibration (Click here).

1.INSPECT CAN COMMUNICATION SYSTEM

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

    Result:

    Condition
    		Proceed To
    DTC is not output
    		A
    DTC is output
    		B



B
REPAIR CAN COMMUNICATION SYSTEM
A


2.INSPECT MULTIPLEX COMMUNICATION SYSTEM

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

    Result:

    Condition
    		Proceed To
    DTC is not output
    		A
    DTC is output
    		B



B
REPAIR MULTIPLEX COMMUNICATION SYSTEM
A


3.INSPECT BRAKE CONTROL WARNING LIGHT

  1. Connect the intelligent tester to the DLC3.

  1. Start the engine.

  1. Select the "ECB Warning Lamp" and "VSC Warning Lamp" in the ACTIVE TEST and operate the brake control (ECB/VSC) warning light by the intelligent tester.

    ABS / VSC / TR(A)C: 
    Item
    (Display)
    		Vehicle Condition/
    Test Details
    		Diagnostic Note
    ECB Warning Lamp
    		Turns brake control warning light
    ON/OFF
    		Observe combination meter
    VSC Warning Lamp
    		Turns brake control warning light
    ON/OFF
    		Observe combination meter

  1. Check that "ON" and "OFF" of the brake control (ECB/VSC) warning lights are indicated on the combination meter when using the intelligent tester.

    OK:
    The brake control (ECB/VSC) warning lights turn on or off in accordance with the intelligent tester.

    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 (Click here).



NG
Go to step 4
OK

REPLACE SKID CONTROL ECU 

4.INSPECT COMBINATION METER ASSEMBLY

  1. Check the combination meter assembly (Click here).

    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 (Click here).



NG
REPLACE COMBINATION METER ASSEMBLY
OK

END