VEHICLE STABILITY CONTROL SYSTEM TC and CG Terminal Circuit

DTC Code DTC Name
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

C243297E09

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:Click hereClick here

      for RHD:Click hereClick here

    Result

    Proceed to

    DTC is not output

    DTC is output (for LHD)

    DTC is output (for RHD)
    DTC is output (for LHD)

    CHECK CAN COMMUNICATION SYSTEM

    Click here

    DTC is output (for RHD)

    CHECK CAN COMMUNICATION SYSTEM

    Click here

    DTC is not output

  2. INSPECT DLC3

    1. C146309C94

      *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

    INSPECT ECM (TC of DLC3 INPUT)Click here

    NG

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

    1. Turn the ignition switch off.

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

      Disconnect the A61 ECM connector.

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

      Disconnect the A62 ECM connector.

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

      Standard Resistance

      Table 1. for 1AD-FTV, 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

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

      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

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

      Reconnect the A61 ECM connector.

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

      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. C146309C94

      *a

      DLC3

      Turn the ignition switch off.

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

    3. Turn the ignition switch to ON.

    4. Check that the malfunction indicator lamp is blinking.

    09843-18040

    Result

    Proceed to

    Malfunction indicator lamp is blinking (for 1AD-FTV)

    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 1AD-FTV)

    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