ELECTRONICALLY CONTROLLED BRAKE SYSTEM, Diagnostic DTC:C1348

DTC Code DTC Name
C1348 Different Diameter Tire Malfunction

DESCRIPTION

The skid control ECU measures the speed of each wheel by receiving signals from the speed sensors.

These signals area used to recognize that all four wheels are operating properly. Therefore, all wheel signals must be equal.

DTC Code INF Code DTC Detection Condition Trouble Area
C1348 - Difference in the size between the front and rear tires is detected.

  • Tire and wheel size

  • Tire pressure

  • Speed sensor circuit

  • Skid control ECU

INSPECTION PROCEDURE

Note

When replacing the skid control ECU, perform initialization and calibration of the linear solenoid valve Click here.

PROCEDURE


  1. CHECK TIRES


    1. Check the size and condition of all four wheels Click here.

      Tech Tips

      The DTC is output when tire deformation or a difference in tire size is detected.

      OK
      The diameter of all four tires and air pressure are the same.

    NG

    REPLACE TIRES SO THAT ALL FOUR TIRES ARE THE SAME SIZE

    OK

  2. RECONFIRM DTC


    1. Clear the DTCs Click here.

    2. Start the engine.

    3. Drive the vehicle at a speed of 30 km/h (18 mph) or more.

    4. Check if the same DTC is recorded Click here.

      Result
      Result Proceed to
      DTC (C1384 and speed sensor DTC) are not output A
      Speed sensor DTC is output B
      DTC (C1384) is output C

    B

    REPAIR CIRCUITS INDICATED BY OUTPUT DTCS Click here

    C

    REPLACE SKID CONTROL ECU Click here

    A

    CHECK FOR INTERMITTENT PROBLEMS Click here