VEHICLE STABILITY CONTROL SYSTEM TC and CG Terminal Circuit

DESCRIPTION

Connecting terminals TC and CG of the DLC3 causes the skid control ECU to display 2-digit DTCs by flashing the ABS and VSC warning light.

WIRING DIAGRAM

A0137R5E02

INSPECTION PROCEDURE

Tech Tips

When the warning lights continue to blink, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in one or more ECU is suspected.

PROCEDURE


  1. CHECK DLC3 TERMINAL VOLTAGE (TC TERMINAL)


    1. Turn the ignition switch to ON.

    2. A01371DE16

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      C16-13 (TC) - C16-4 (CG) Ignition switch ON 11 to 14 V

    NG

    CHECK HARNESS AND CONNECTOR (DLC3 - BODY GROUND) Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - DLC3)


    1. Disconnect the skid control ECU connector.

    2. A0137I6E02

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

      Standard resistance
      Tester Connection Condition Specified Condition
      A41-17 (TC) - C16-13 (TC) Always Below 1 Ω
      A41-17 (TC) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

  3. CHECK HARNESS AND CONNECTOR (DLC3 - BODY GROUND)


    1. A01371DE14

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

      Standard resistance
      Tester Connection Condition Specified Condition
      C16-4 (CG) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - DLC3)


    1. Disconnect the skid control ECU connector.

    2. A0137I6E02

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

      Standard resistance
      Tester Connection Condition Specified Condition
      A41-17 (TC) - C16-13 (TC) Always Below 1 Ω
      A41-17 (TC) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here