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

B0019F7E01
B0018IUE02

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.

CAUTION / NOTICE / HINT

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. B001B3DE01
      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: See page , 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:


      • Disconnect the A38*1 or A85*2 ECM connector.

      • *1: for 3UR-FE

      • *2: except 3UR-FE

    3. for RHD:


      • Disconnect the A87*1, A86*2 or A85*3 ECM connector.

      • *1: for 3UR-FE

      • *2: for 1VD-FTV (w/ DPF)

      • *3: for 1VD-FTV (w/o DPF)

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


      1. for LHD:

        Standard Resistance
        for 3UR-FE:
        Tester Connection Condition Specified Condition
        A38-43 (TC) - E22-13 (TC) Always Below 1 Ω
        except 3UR-FE:
        Tester Connection Condition Specified Condition
        A85-27 (TC) - E22-13 (TC) Always Below 1 Ω

      2. for RHD:

        Standard Resistance
        for 3UR-FE:
        Tester Connection Condition Specified Condition
        A87-43 (TC) - E22-13 (TC) Always Below 1 Ω
        for 1VD-FTV (w/ DPF):
        Tester Connection Condition Specified Condition
        A86-27 (TC) - E22-13 (TC) Always Below 1 Ω
        for 1VD-FTV (w/o DPF):
        Tester Connection Condition Specified Condition
        A85-27 (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. B001A9CE01
      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. B001B3DE01
      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: See page , 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

    A

    REPLACE MASTER CYLINDER SOLENOID Click here

    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