Brake Warning Light does not Come ON (from 12/2010)

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

DESCRIPTION

The skid control ECU is connected to the combination meter via the CAN and multiplex communication systems.

WIRING DIAGRAM

Refer to Brake Warning Light Remains ON Brake Warning Light Remains ON (from 12/2010).

INSPECTION PROCEDURE

NOTICE:
When replacing the ABS & TRACTION actuator assembly, perform zero point calibration Calibration (from 12/2010).

PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM

(a) Check if the CAN communication system DTC is output Reading and Clearing Diagnostic Trouble Codes.

Result:





B -- INSPECT CAN COMMUNICATION SYSTEM Initial Inspection and Diagnostic Overview
A -- Continue to next step.

2. CHECK MULTIPLEX COMMUNICATION SYSTEM

(a) Check if the multiplex communication system DTC is output Reading and Clearing Diagnostic Trouble Codes.

Result:





B -- INSPECT MULTIPLEX COMMUNICATION SYSTEM Reading and Clearing Diagnostic Trouble Codes
A -- Continue to next step.

3. PERFORM ACTIVE TEST USING TECHSTREAM (BRAKE WARNING LIGHT)

(a) Connect the Techstream to the DLC3.

(b) Start the engine.

(c) Select the Active Test on the Techstream Data List / Active Test.

ABS/VSC/TRAC:





(d) Check the ABS warning light on the combination meter turns on or off in accordance with the Techstream.

OK:

The ABS warning light turns on or off in accordance with the Techstream operation.

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 (from 12/2010).

NG -- INSPECT COMBINATION METER ASSEMBLY

OK -- REPLACE ABS & TRACTION ACTUATOR ASSEMBLY

4. INSPECT COMBINATION METER ASSEMBLY

(a) Turn the ignition switch off.

(b) Reconnect the skid control ECU connector.

(c) Perform Active Test of the combination meter (meter CPU) using the Techstream Data List / Active Test (from 12/2010).

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 (from 12/2010).

NG -- REPLACE COMBINATION METER ASSEMBLY Removal (from 12/2010)

OK -- END