ANTI-LOCK BRAKE SYSTEM, Diagnostic DTC:C1300/62

DTC Code DTC Name
C1300/62 ABS ECU Malfunction

DESCRIPTION

DTC No. DTC Detecting Condition Trouble Area
C1300/62 Internal failure of skid control ECU control unit. Skid control ECU

INSPECTION PROCEDURE

PROCEDURE


  1. RECONFIRM DTC


    1. Clear the DTCs Click here.

    2. Turn the ignition switch to the ON position.

    3. Check if the same DTC is recorded.

      Result
      DTC C1300/62 output A
      DTC other than C1300/62 output B

    B

    REPAIR CIRCUIT INDICATED BY OUTPUT DTC

    A

  2. CHECK SKID CONTROL ECU TERMINAL VOLTAGE


    1. When using an intelligent tester:


      1. Connect the intelligent tester to the DLC3.

      2. Turn the tester ON.

      3. Read the value using the intelligent tester.

        Select the following menu items: Chassis / ABS/VSC/TRC / Data List.

        Item Measurement Item : Range (Display) Normal Condition
        ECU IG Power Voltage ECU power supply voltage : TOO LOW / NORMAL / TOO HIGH

        TOO HIGH: 14.0 V or more

        NORMAL: 9.5 to 14.0 V

        TOO LOW: Below 9.5 V

      4. Read the voltage condition output from the ECU displayed on the intelligent tester.

        OK
        "Normal" is displayed.

    2. When not using an intelligent tester:


      1. Disconnect the skid control ECU connector.

      2. Turn the ignition switch to the ON position.

      3. Measure the voltage.

        A0135VYE04
        Standard Voltage
        Tester Connection Condition Specified Condition
        A21-18 - (IG1) - Body ground Ignition switch ON (IG) 10 to 14 V

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - BODY GROUND)


    1. Inspect the skid control ECU connector fitting for any defects.

    2. Disconnect the skid control ECU connector.

    3. Inspect both the connector case and the terminal for deformation and corrosion.

      OK
      No deformation or corrosion.
    4. A0135VYE05

      Measure the resistance.

      Standard Resistance
      Tester Connection Specified Condition
      A21-4 (GND1) - Body ground Below 1 Ω
      A21-1 (GND2) - Body ground Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

    REPLACE BRAKE ACTUATOR