VEHICLE STABILITY CONTROL SYSTEM 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 control and VSC. If VSC turns off, the VSC OFF message will be displayed on the multi-information display and the master warning light will come on.

INSPECTION PROCEDURE

PROCEDURE

1. Click here

   CHECK CAN COMMUNICATION SYSTEM

   
   

   1. Check if a CAN communication system DTC is output (Click here).

      Table 1. Result

      Result	Proceed to
      CAN communication system DTC is not output.	A
      CAN communication system DTC is output.	B

   
   
   • AClick here
   • BClick here
2. Click here

   CHECK IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED

   
   

   1. Check if the skid control ECU connector is securely connected.

      OK
      The connector is securely connected.

   
   
   • OKClick here
   • NGClick here
3. Click here

   CHECK HARNESS AND CONNECTOR (CSW TERMINAL)

   
   

   1. Disconnect the skid control ECU connector.

   2. 

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition A52 or A54-17 (CSW) - Body ground VSC OFF switch off (Not pressed) 10 kΩ or higher

      Table 2. Text in Illustration

      *1	Front view of wire harness connector (to Skid Control ECU)
      *2	for AD Series Engine
      *3	for ZR Series Engine

   
   
   • OKClick here
   • NGClick here
4. Click here

   INSPECT COMBINATION METER ASSEMBLY

   
   

   1. Check the combination meter (Click here).

      Table 3. Result

      Result	Proceed to
      The combination meter is normal.	A
      The combination meter is abnormal.	B

      Tip:

      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 (Click here).

   
   
   • AClick here
   • BClick here
5. Click here

   INSPECT VSC OFF SWITCH

   
   
   1. 

      Remove the VSC OFF switch (Click here).

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition 6 (+) - 3 (E) Switch is pushed in Below 1 Ω Switch is not pushed in 10 kΩ or higher

   
   
   • OKClick here
   • NGClick here
6. Click here

   CHECK HARNESS AND CONNECTOR (VSC OFF SWITCH - SKID CONTROL ECU/BODY GROUND)

   
   

   1. Disconnect the skid control ECU connector.

   2. Disconnect the VSC OFF switch connector.

   3. 

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

      Standard Resistance
      Tester Connection Condition Specified Condition A52 or A54-17 (CSW) - H66-6 (+) Always Below 1 Ω A52 or A54-17 (CSW) - Body ground Always 10 kΩ or higher H66-3 (E) - Body ground Always Below 1 Ω

      Table 4. Text in Illustration

      *1	Front view of wire harness connector (to Skid Control ECU)
      *2	Front view of wire harness connector (to VSC OFF Switch)
      *3	for AD Series Engine
      *4	for ZR Series Engine

      Tip:

      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 (Click here).

   
   
   • OKClick here
   • NGClick here
7. Click here

   REPLACE BRAKE ACTUATOR ASSEMBLYClick here

8. Click here

   GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)Click here

9. Click here

   CONNECT CONNECTOR TO ECU CORRECTLY

10. Click here

    REPLACE COMBINATION METER ASSEMBLYClick here

11. Click here

    REPLACE VSC OFF SWITCHClick here

12. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR