VSC OFF Indicator Light Remains ON

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: VSC OFF Indicator Light Remains ON
- VSC OFF Indicator Light Remains ON

DESCRIPTION

The skid control ECU is connected to the combination meter assembly via CAN communication.

Pressing the VSC OFF switch turns off TR(A)C operation and pressing and holding this switch turns off TR(A)C and VSC operation. If VSC operation is turned off, the VSC OFF indicator light will come on.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM

(a) Check if a CAN communication system DTC is output Diagnosis System.

Result:





B -- INSPECT CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting
A -- Continue to next step.

2. CHECK IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED

(a) Check if the skid control ECU connector is securely connected.

OK:

The connector is securely connected.

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

3. CHECK BATTERY

(a) Check the battery voltage.

Standard Voltage:

11 to 14 V

Result:





B -- CHECK OR REPLACE CHARGING SYSTEM COMPONENT OR BATTERY Component Tests and General Diagnostics

C -- CHECK OR REPLACE CHARGING SYSTEM COMPONENT OR BATTERY Component Tests and General Diagnostics
A -- Continue to next step.

4. READ VALUE USING TECHSTREAM (VSC OFF SWITCH)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

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

ABS/VSC/TRAC





(d) Using the Techstream, check that the switch condition displayed on the Techstream changes according to VSC OFF switch operation.

OK:

The Techstream display changes according to VSC OFF switch operation.

NG -- INSPECT VSC OFF SWITCH
OK -- Continue to next step.

5. INSPECT COMBINATION METER ASSEMBLY

(a) Turn the ignition switch off.

(b) Perform an Active Test of the combination meter assembly (meter CPU) using the Techstream Meter / Gauge System.

(c) Check the combination meter assembly.

OK:

The VSC OFF indicator light turns on or off in accordance with the Active Test operation.

HINT
If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing parts Problem Symptoms Table.

NG -- REPLACE COMBINATION METER ASSEMBLY Removal

OK -- REPLACE BRAKE ACTUATOR ASSEMBLY Removal

6. INSPECT VSC OFF SWITCH

(a) Turn the ignition switch off.





(b) Disconnect the VSC OFF switch connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





Text in Illustration





NG -- REPLACE VSC OFF SWITCH Removal
OK -- Continue to next step.

7. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - VSC OFF SWITCH)

(a) Disconnect the skid control ECU connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





HINT
If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing parts Problem Symptoms Table.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE BRAKE ACTUATOR ASSEMBLY Removal