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.

WIRING DIAGRAM

A01IPRNE01

INSPECTION PROCEDURE

Note

When replacing the skid control ECU (brake actuator assembly), perform engine variant learning Click here.

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


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

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

    B
    A
  2. 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.

    NG
    OK
  3. CHECK HARNESS AND CONNECTOR (CSW TERMINAL)


    1. Disconnect the skid control ECU connector.

    2. A01ITVSE32
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Skid Control ECU)

      *2 for AD Series Engine
      *3 for ZR Series Engine

      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

    NG
    OK
  4. INSPECT COMBINATION METER ASSEMBLY


    1. Check the combination meter Click here.

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

      Tech Tips

      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.


    B
    A
  5. INSPECT VSC OFF SWITCH


    1. A01IU4VE01

      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

    NG
    OK
  6. 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. A01IN6DE03
      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

      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

      Tech Tips

      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.


    NG
    OK