VEHICLE STABILITY CONTROL SYSTEM VSC Warning Light does not Come ON

DESCRIPTION

Refer to VSC Warning Light Remains ON Click here.

WIRING DIAGRAM

Refer to VSC Warning Light Remains ON Click here.

INSPECTION PROCEDURE

PROCEDURE


  1. 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

    CONNECT CONNECTOR TO ECU CORRECTLY

    OK

  2. CHECK BATTERY


    1. Check the battery voltage.

      Standard voltage
      11 to 14 V

    NG

    CHECK OR REPLACE CHARGING SYSTEM OR BATTERY

    OK

  3. CHECK VSC WARNING LIGHT


    1. Turn the ignition switch to OFF and disconnect the skid control ECU connector.

    2. A0136MKE35

      Ground terminal VSCW of the skid control ECU.

    3. Turn the ignition switch to ON.

    4. Check the VSC warning light.

      OK
      VSCW- GND Condition Illumination Condition
      Connecting ON
      Disconnecting OFF

      Tech Tips


      • When the VSC warning light comes on, ground failure or open circuits in the brake actuator should be considered.

      • When the VSC warning light does not come on, opens in the wire harness among the combination meters or abnormalities in the meter circuit should be considered.


    NG

    CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - COMBINATION METER) Click here

    OK

  4. INSPECT SKID CONTROL ECU (IG1 TERMINAL)


    1. A0136MKE32

      Disconnect the skid control ECU connector.

    2. Turn the ignition switch to ON.

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      A41-28 (IG1) - Body ground Ignition switch ON 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (IG1 CIRCUIT)

    OK

  5. INSPECT SKID CONTROL ECU (GND TERMINAL)


    1. A0136MKE30

      Turn the ignition switch to OFF.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      A41-4 (GND1) - Body ground Always Below 1 Ω
      A41-1 (GND2) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (GND CIRCUIT)

    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

  6. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - COMBINATION METER)


    1. Turn the ignition switch to OFF.

    2. Disconnect the skid control ECU connector and the combination meter connector.

    3. A0137L3E02

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

      Standard resistance
      Tester Connection Condition Specified Condition
      A41-22 (VSCW) - A22-11 (VSW) Always Below 1 Ω
      A41-22 (VSCW) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. INSPECT IG2 FUSE


    1. A0136G2E02

      Remove the IG2 fuse from the instrument panel junction block.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      IG2 (15 A) fuse Always Below 1 Ω

    NG

    REPLACE IG2 FUSE

    OK

  8. CHECK HARNESS AND CONNECTOR (COMBINATION METER - BATTERY)


    1. Disconnect the instrument panel junction block connector.

    2. Turn the ignition switch to ON.

    3. A013628E01

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      3H-9 - Body ground Ignition switch ON 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here