VEHICLE STABILITY CONTROL SYSTEM TC and CG Terminal Circuit

DESCRIPTION

DTC output mode is set by connecting terminals TC and CG of the DLC3.

The DTCs are output by the blinking of the ABS warning light and slip indicator light.

WIRING DIAGRAM

A01ESA7E08

Tech Tips

When each warning light stays blinking, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in each ECU is suspected.

INSPECTION PROCEDURE

Note

After replacing the master cylinder solenoid, perform zero point calibration and store the system information Click here.

PROCEDURE


  1. INSPECT DLC3 (DLC3 (TC) - DLC3 (CG))


    1. A01EO7WE06
      Text in Illustration
      *1 DLC3

      Turn the engine switch on (IG).

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      E22-13 (TC) - E22-4 (CG) Engine switch on (IG) 11 to 14 V

    NG

    CHECK HARNESS AND CONNECTOR (ECM - DLC3 (TC)) Click here

    OK

  2. CHECK CAN COMMUNICATION LINE


    1. Turn the engine switch off.

    2. Connect the GTS to the DLC3.

    3. Turn the engine switch on (IG) and the GTS on.

    4. Select "CAN Bus Check" from the System Selection Menu screen, and follow the prompts on the screen to inspect the CAN Bus.

      OK
      "CAN Bus Check" indicates no malfunctions in CAN communication.
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    B

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

    C

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

    A

  3. CHECK DTC (CAN COMMUNICATION SYSTEM)


    1. Turn the engine switch off.

    2. Connect the GTS to the DLC3.

    3. Turn the engine switch on (IG) and the GTS on.

    4. Check for DTCs (for LHD: Click here, for RHD: Click here.

      Result
      Result Proceed to
      CAN system DTC is not output A
      CAN system DTC is output (for LHD) B
      CAN system DTC is output (for RHD) C

    B

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

    C

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

    A

  4. CHECK HARNESS AND CONNECTOR (ECM - DLC3 (TC))


    1. Turn the engine switch off.

    2. for LHD:


      1. Disconnect the A38 ECM connector.

    3. for RHD:


      1. Disconnect the A53 ECM connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      A38-16 (TC) - E22-13 (TC) Always Below 1 Ω
      for RHD
      Tester Connection Condition Specified Condition
      A53-16 (TC) - E22-13 (TC) Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (DLC3 (CG) - BODY GROUND)


    1. A01EO7WE13
      Text in Illustration
      *1 DLC3

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E22-4 (CG) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK ECM (DLC3 (TC) INPUT)


    1. A01EO7WE06
      Text in Illustration
      *1 DLC3

      Using SST, connect terminals TC and CG of the DLC3.

    2. Check that the malfunction indicator lamp is blinking.

      Result
      Result Proceed to
      MIL is blinking A
      MIL is not blinking B

    B

    REPAIR OR REPLACE WIRE HARNESS OR ECM

    A

  7. CHECK DTC (CAN COMMUNICATION SYSTEM)


    1. Turn the engine switch off.

    2. Connect the GTS to the DLC3.

    3. Turn the engine switch on (IG) and the GTS on.

    4. Check for DTCs (for LHD: Click here, for RHD: Click here.

      Result
      Result Proceed to
      CAN system DTC is not output (for LHD) A
      CAN system DTC is not output (for RHD) B
      CAN system DTC is output (for LHD) C
      CAN system DTC is output (for RHD) D

    B

    REPLACE MASTER CYLINDER SOLENOID Click here

    C

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

    D

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

    A

    REPLACE MASTER CYLINDER SOLENOID Click here