ANTI-LOCK BRAKE SYSTEM(for Type A), Diagnostic DTC:C1300

DTC Code DTC Name
C1300 Skid Control ECU Malfunction

DESCRIPTION

The skid control ECU (brake actuator assembly) stores this DTC if malfunctions are found in a circuit inside the ECU by self diagnosis.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1300

Skid Control ECU Malfunction

Internal failure of the skid control ECU (brake actuator assembly).

Skid control ECU (brake actuator assembly)

PROCEDURE

  1. CHECK IF BRAKE ACTUATOR ASSEMBLY CONNECTOR IS SECURELY CONNECTED

    1. Check if the skid control ECU (brake actuator assembly) connector is securely connected.

      OK

      The connector is securely connected.

    Result

    Proceed to

    OK

    NG
    NG

    CONNECT CONNECTOR TO ECU CORRECTLY

    OK

  2. CHECK BATTERY

    1. Check the battery voltage.

      Standard Voltage

      11 to 14 V

      Result

      Proceed to

      OK

      NG
    NG

    CHECK OR REPLACE CHARGING SYSTEM COMPONENT OR BATTERY

    for 1NR-FE:Click here

    for 1ZR-FE:Click here

    for 1ND-TV:Click here

    for 2ZR-FE:Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL)

    1. C278421C01

      *a

      Front view of wire harness connector

      (to Skid Control ECU (Brake Actuator Assembly))

      Disconnect the A120 skid control ECU (brake actuator assembly) connector.

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

      Standard Voltage

      Tester Connection

      Condition

      Specified Condition

      A120-25 (+BS) - Body ground

      Always

      11 to 14 V

      A120-25 (+BS) - A120-38 (GND1)

      Always

      11 to 14 V

      A120-28 (IG1) - Body ground

      Ignition switch ON

      11 to 14 V

      A120-28 (IG1) - A120-38 (GND1)

      Ignition switch ON

      11 to 14 V

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE TERMINAL)

    OK

  4. CHECK HARNESS AND CONNECTOR (GND1 TERMINAL)

    1. C278421C02

      *a

      Front view of wire harness connector

      (to Skid Control ECU (Brake Actuator Assembly))

      Turn the ignition switch off.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      A120-38 (GND1) - Body ground

      Always

      Below 1 Ω

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (GND1 CIRCUIT)

    OK

  5. REPLACE BRAKE ACTUATOR ASSEMBLY

    1. Replace the skid control ECU (brake actuator assembly).

      Click here

      Tip:

      This DTC is output when the skid control ECU (brake actuator assembly) detects a malfunction in an internal circuit.

    2. Perform the sensor check using the Test Mode procedure.

      Click here

      Chassis > ABS/VSC/TRC > Utility

      Tester Display

      Test Mode

    Result

    Proceed to

    NEXT
    NEXT

    END