VSC Warning Light Does Not Come ON

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

VSC Warning Light does not Come ON

DESCRIPTION

The skid control ECU is connected to the combination meter via CAN and multiplex communications.
If the skid control ECU stores DTCs to shut down TRAC and VSC operation, the VSC warning light comes on in the combination meter.

WIRING DIAGRAM






INSPECTION PROCEDURE
NOTE: When replacing the brake actuator assembly, perform zero point calibration Programming and Relearning.

PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM
(a) Check if the CAN communication system DTC is output Diagnosis System.
Result:






B -- INSPECT CAN COMMUNICATION SYSTEM
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
A -- Continue to next step.
3. CHECK VSC WARNING LIGHT
(a) Connect Techstream to the DLC3.
(b) Start the engine.
(c) Select the Active Test mode on Techstream Data List / Active Test.

ABS / VSC / TRAC:





(d) Check that "ON" and "OFF" of the VSC warning light are indicated on the combination meter when using Techstream.
OK:
The VSC warning light turns on or off in accordance with Techstream.
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.

NG -- INSPECT COMBINATION METER ASSEMBLY
OK -- REPLACE BRAKE ACTUATOR ASSEMBLY
4. INSPECT COMBINATION METER ASSEMBLY
(a) Turn the ignition switch off.
(b) Check the combination meter How To Proceed With Troubleshooting.
OK:
The combination meter is normal.
HINT: If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step Problem Symptoms Table.

NG -- REPLACE COMBINATION METER ASSEMBLY
OK -- REPLACE BRAKE ACTUATOR ASSEMBLY