ELECTRONICALLY CONTROLLED BRAKE SYSTEM, Diagnostic DTC:C1451

DTC Code DTC Name
C1451 Motor Drive Permission Malfunction

DESCRIPTION

If air bleeding has not been performed, the skid control ECU stores DTC C1451 to prevent the entry of air due to the pump motor operation.

DTC C1451 is stored when Invalid Mode is selected, the system will not return to normal until air bleeding procedure is performed.

DTC Code INF Code DTC Detection Condition Trouble Area
C1451 - Air bleeding has not been performed.

  • Brake fluid leaks

  • Air bleeding not performed

PROCEDURE


  1. CHECK BRAKE FLUID LEVEL


    1. Check that the brake fluid level is sufficient.

      OK
      Brake fluid level is sufficient.

      Tech Tips


      • If the fluid level drops, check for fluid leaks, and repair as necessary.

      • If no fluid leaks exist, add and adjust fluid Click here.


    NG

    CHECK AND REPAIR BRAKE FLUID LEAKS OR ADD FLUID

    OK

  2. PERFORM AIR BLEEDING


    1. Bleed the air from the brake systems Click here.

      Tech Tips

      If air bleeding has been performed, this DTC will be cleared.


    NEXT

  3. RECONFIRM DTC


    1. Check if the same DTC is recorded (See page ).

      Click here

      Result
      Result Proceed to
      DTC (C1451) is output A
      DTC (C1451) is not output B

    B

    END

    A

  4. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

    END