ANTI-LOCK BRAKE SYSTEM TS and CG Terminal Circuit

DESCRIPTION

In Test Mode (signal check), a malfunction in the speed sensor that cannot be detected when the vehicle is stopped can be detected while driving.

Sensor check mode can be entered by connecting terminals TS and CG of the DLC3 and turning the ignition switch from off to ON.

WIRING DIAGRAM

A01QUO5E04
*a Skid Control ECU (Brake Actuator Assembly)
*b Power Steering ECU Assembly
*c CAN Communication Line

CAUTION / NOTICE / HINT

Note

If the power steering ECU assembly or steering column assembly has been replaced, perform the torque sensor zero point calibration.

Click here

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Check if CAN communication system DTCs are output.

      Click here

      Result
      Proceed to
      DTC is not output
      DTC is output

    DTC is output

    CHECK CAN COMMUNICATION SYSTEM Click here

    DTC is not output

  2. INSPECT DLC3


    1. A01QUGMC95
      *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
      G14-12 (TS) - 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 (TS of DLC3 - POWER STEERING ECU ASSEMBLY)


    1. Turn the ignition switch off.

    2. Disconnect the h1 power steering ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G14-12 (TS) - h1-5 (TS) Always Below 1 Ω
      G14-12 (TS) - 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. Reconnect the h1 power steering ECU connector.

    2. 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 POWER STEERING ECU ASSEMBLY


    1. A01QUGMC95
      *a DLC3

      Turn the ignition switch off.

    2. Using SST, connect terminals 12 (TS) and 4 (CG) of the DLC3.

      SST
      09843-18040

    3. Turn the ignition switch to ON.

    4. Check that the power steering warning light is blinking.

      Result
      Proceed to
      The power steering warning light is not blinking
      The power steering warning light is blinking

    The power steering warning light is not blinking

    REPLACE POWER STEERING ECU ASSEMBLY Click here

    The power steering warning light is blinking

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here