VEHICLE STABILITY CONTROL SYSTEM TC and CG Terminal Circuit

DESCRIPTION

Connecting terminals TC and CG of the DLC3 causes the ECU to display the DTC by blinking the ABS warning light and slip indicator light.

WIRING DIAGRAM

B007Z5VE11

CAUTION / NOTICE / HINT

Note

When replacing the skid control ECU (brake actuator assembly), perform zero point calibration and store system information.

Click here

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Check if CAN communication system DTCs are output.

      Click here

      Result
      Result Proceed to
      DTCs are not output. A
      DTCs are output. B

    B

    CHECK CAN COMMUNICATION SYSTEM Click here

    A

  2. INSPECT DLC3


    1. B007ZE2C70
      *a Front view of DLC3

      Turn the engine switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      J12-13 (TC) - J12-4 (CG) Engine switch on (IG) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

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

    OK

  3. REPLACE ECM


    1. B007ZE2C71
      *a Front view of DLC3

      Turn the engine switch off.

    2. Replace the ECM.

      for 8AR-FTS: Click here

      for 2GR-FKS: Click here

    3. Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.

      SST
      09843-18040

    4. Check that the ABS warning, slip indicator and brake hold standby indicator lights are blinking.

      OK
      The ABS warning, slip indicator and brake hold standby indicator lights are blinking.
      Result
      Proceed to
      OK
      NG

      Tech Tips

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing parts.

      Click here


    OK

    END

    NG

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

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


    1. Turn the engine switch off.

    2. Disconnect the A37 or A46 ECM connector.

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

      Standard Resistance
      for 2GR-FKS
      Tester Connection Condition Specified Condition
      J12-13 (TC) - A37-33 (TC) Always Below 1 Ω
      J12-13 (TC) or A37-33 (TC) - Body ground Always 10 kΩ or higher
      for 8AR-FTS
      Tester Connection Condition Specified Condition
      J12-13 (TC) - A46-33 (TC) Always Below 1 Ω
      J12-13 (TC) or A46-33 (TC) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. B007ZE2C72
      *a Front view of DLC3

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J12-4 (CG) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. REPLACE ECM


    1. B007ZE2C73
      *a Front view of DLC3

      Replace the ECM.

      for 8AR-FTS: Click here

      for 2GR-FKS: Click here

    2. Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.

      SST
      09843-18040

    3. Check that the ABS warning, slip indicator and brake hold standby indicator lights are blinking.

      OK
      The ABS warning, slip indicator and brake hold standby indicator lights are blinking.
      Result
      Proceed to
      OK
      NG

      Tech Tips

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing parts.

      Click here


    OK

    END

    NG

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here