VSC Warning Light Does Not Come ON

BRAKE CONTROL: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: VSC Warning Light does not Come ON

VSC Warning Light does not Come ON

DESCRIPTION

The skid control ECU communicates with the combination meter via CAN communication.
If the ECU stores a DTC, the master caution indicator light will come on and the DTC will be displayed on the multi information display in the combination meter.

WIRING DIAGRAM






INSPECTION PROCEDURE
NOTICE: When replacing the skid control ECU, perform initialization of linear solenoid valve and calibration Initialization.

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 VSC WARNING LIGHT
(a) Connect Techstream to the DLC3.
(b) Turn the power switch on (READY).
(c) Select "VSC Warning Lamp" in the Active Test and operate the VSC warning (master caution indicator light and multi information display) using Techstream.

ABS / VSC / TRAC:





(d) Check that "ON" and "OFF" of the VSC warning (master caution indicator light and multi information display) are indicated on the combination meter when using Techstream.
OK:
The VSC warning (master caution indicator light and multi information display) 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.

OK -- REPLACE SKID CONTROL ECU
NG -- Continue to next step.
3. INSPECT COMBINATION METER ASSEMBLY
(a) Turn the power switch off.
(b) Perform Active Test of the combination meter (meter CPU) using Techstream Scan Tool Testing and Procedures.
OK:
The VSC warning (master caution indicator light and multi information display) 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 Problem Symptoms Table.

NG -- REPLACE COMBINATION METER ASSEMBLY
OK -- REPLACE SKID CONTROL ECU