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

B002A28E14

CAUTION / NOTICE / HINT

Note

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

Click here

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Check if CAN communication system DTCs are output.

      for LHD with Central Gateway ECU: Click here

      for RHD with Central Gateway ECU: Click here

      for LHD without Central Gateway ECU: Click here

      for RHD without Central Gateway ECU: Click here

      Result
      Proceed to
      DTC is not output
      DTC is output (for LHD with Central Gateway ECU)
      DTC is output (for RHD with Central Gateway ECU)
      DTC is output (for LHD without Central Gateway ECU)
      DTC is output (for RHD without Central Gateway ECU)

    DTC is output (for LHD with Central Gateway ECU)

    CHECK CAN COMMUNICATION SYSTEM Click here

    DTC is output (for RHD with Central Gateway ECU)

    CHECK CAN COMMUNICATION SYSTEM Click here

    DTC is output (for LHD without Central Gateway ECU)

    CHECK CAN COMMUNICATION SYSTEM Click here

    DTC is output (for RHD without Central Gateway ECU)

    CHECK CAN COMMUNICATION SYSTEM Click here

    DTC is not output

  2. INSPECT DLC3


    1. B0029JOC94
      *a DLC3

      Turn the ignition switch to ON.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      G14-13 (TC) - G14-4 (CG) Ignition switch ON 11 to 14 V
      Result
      Proceed to
      OK
      NG

    OK

    GO TO STEP 5 Click here

    NG

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


    1. Turn the ignition switch off.

    2. for 2AD-FTV, 2AD-FHV:

      Disconnect the A61 ECM connector.

    3. for 2AR-FE, 3ZR-FE, 3ZR-FAE, 2WW:

      Disconnect the A62 ECM connector.

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

      Standard Resistance
      for 2AD-FTV, 2AD-FHV:
      Tester Connection Condition Specified Condition
      G14-13 (TC) - A61-26 (TC) Always Below 1 Ω
      G14-13 (TC) - Body ground Always 10 kΩ or higher
      Standard Resistance
      for 2AR-FE, 3ZR-FE (for K111, K111F):
      Tester Connection Condition Specified Condition
      G14-13 (TC) - A62-23 (TC) Always Below 1 Ω
      G14-13 (TC) - Body ground Always 10 kΩ or higher
      Standard Resistance
      for 3ZR-FAE, 3ZR-FE (except K111, K111F):
      Tester Connection Condition Specified Condition
      G14-13 (TC) - A62-33 (TC) Always Below 1 Ω
      G14-13 (TC) - Body ground Always 10 kΩ or higher
      Standard Resistance
      for 2WW:
      Tester Connection Condition Specified Condition
      G14-13 (TC) - A62-50 (TC) Always Below 1 Ω
      G14-13 (TC) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. for 2AD-FTV, 2AD-FHV:

      Reconnect the A61 ECM connector.

    2. for 2AR-FE, 3ZR-FE, 3ZR-FAE, 2WW:

      Reconnect the A62 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G14-4 (CG) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT ECM (TC of DLC3 INPUT)


    1. B0029JOC94
      *a DLC3

      Turn the ignition switch off.

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

      SST
      09843-18040

    3. Turn the ignition switch to ON.

    4. Check that the malfunction indicator lamp is blinking.

      Result
      Proceed to
      Malfunction indicator lamp is blinking (for 2WW)
      Malfunction indicator lamp is blinking (for 2AD-FHV)
      Malfunction indicator lamp is blinking (for 2AD-FTV)
      Malfunction indicator lamp is blinking (for 2AR-FE)
      Malfunction indicator lamp is blinking (for 3ZR-FAE)
      Malfunction indicator lamp is blinking (for 3ZR-FE)
      Malfunction indicator lamp is not blinking

    Malfunction indicator lamp is blinking (for 2WW)

    REPLACE ECM Click here

    Malfunction indicator lamp is blinking (for 2AD-FHV)

    REPLACE ECM Click here

    Malfunction indicator lamp is blinking (for 2AD-FTV)

    REPLACE ECM Click here

    Malfunction indicator lamp is blinking (for 2AR-FE)

    REPLACE ECM Click here

    Malfunction indicator lamp is blinking (for 3ZR-FAE)

    REPLACE ECM Click here

    Malfunction indicator lamp is blinking (for 3ZR-FE)

    REPLACE ECM Click here

    Malfunction indicator lamp is not blinking

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here