Diesel Data: Automotive Repair

VSC Warning Light Remains ON








BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: VSC Warning Light Remains ON

VSC Warning Light Remains ON

DESCRIPTION

If the ECU stores DTC, the VSC warning light comes on in the combination meter.
The skid control ECU is connected to the combination meter via CAN and Multiplex communications.

WIRING DIAGRAM





INSPECTION PROCEDURE

NOTE: When replacing the ABS & TRACTION actuator assembly, perform zero point calibration Programming and Relearning.

PROCEDURE

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





B -- REPAIR CAN COMMUNICATION SYSTEM
A -- Continue to next step.

2. INSPECT MULTIPLEX COMMUNICATION SYSTEM
(a) Check if the multiplex communication system DTC is output Initial Inspection and Diagnostic Overview.
Result:





B -- REPAIR MULTIPLEX COMMUNICATION SYSTEM
A -- Continue to next step.

3. INSPECT IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED
(a) Check the skid control ECU connector's connecting condition.
OK:
The connector should be securely connected.

NG -- CONNECT CONNECTOR TO ECU CORRECTLY
OK -- Continue to next step.

4. INSPECT BATTERY
(a) Check the battery voltage.
Voltage:
11 to 14 V

NG -- INSPECT CHARGING SYSTEM
OK -- Continue to next step.

5. INSPECT COMBINATION METER ASSEMBLY
(a) Check the combination meter assembly How To Proceed With Troubleshooting.

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 -- REPLACE COMBINATION METER ASSEMBLY
OK -- REPLACE ABS & TRACTION ACTUATOR ASSEMBLY