VSC OFF Indicator Light Remains ON

BRAKE CONTROL: 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 via CAN communication.
Pressing the VSC OFF switch turns off traction control and pressing and holding this switch turns off traction and VSC controls. If VSC control turns OFF, the VSC OFF indicator light will come on.
The VSC OFF indicator light will come on when the skid control ECU stores a DTC.

WIRING DIAGRAM





INSPECTION PROCEDURE
NOTICE: 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 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
NG -- CHECK OR REPLACE CHARGING SYSTEM OR BATTERY
OK -- Continue to next step.
4. INSPECT SKID CONTROL ECU (CSW TERMINAL)




(a) Disconnect the skid control ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- INSPECT VSC OFF SWITCH
OK -- Continue to next step.
5. INSPECT COMBINATION METER ASSEMBLY
(a) Reconnect the skid control ECU connector.
(b) Connect a Techstream to the DLC3.
(c) Perform Active Test of the combination meter using the Techstream Meter / Gauge System.
OK:
The VSC OFF indicator light turns ON or OFF in accordance with the Techstream.
NG -- REPLACE COMBINATION METER ASSEMBLY
OK -- REPLACE BRAKE ACTUATOR ASSEMBLY
6. REPLACE COMBINATION METER ASSEMBLY
(a) Turn the ignition switch to OFF.
(b) Replace the combination meter Removal.
NEXT -- Continue to next step.
7. INSPECT COMBINATION METER ASSEMBLY
(a) Connect the Techstream to the DLC3.
(b) Perform Active Test of the combination meter using the Techstream Meter / Gauge System.
OK:
The VSC OFF indicator light turns ON or OFF in accordance with the Techstream.
NG -- REPLACE BRAKE ACTUATOR ASSEMBLY
OK -- END
8. INSPECT VSC OFF SWITCH




(a) Disconnect the VSC OFF switch connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPLACE VSC OFF SWITCH
OK -- Continue to next step.
9. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - VSC OFF SWITCH)




(a) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION)