C1451

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: C1451/72: Motor Drive Permission Malfunction
C1451/72 - Motor Drive Permission Malfunction

DESCRIPTION

If air bleeding has not been performed, the skid control ECU stores DTC C1451/72 to prevent the entry of air due to the pump motor operation.

DTC C1451/72 is stored when Invalid Mode is selected, the system will not return to normal until air bleeding procedure is performed.





INSPECTION PROCEDURE

PROCEDURE

1. CHECK BRAKE FLUID LEVEL

(a) Check that the brake fluid level is sufficient.

OK:

Brake fluid level is sufficient.

HINT
- If the fluid level drops, check for fluid leaks, and repair as necessary.
- If no fluid leaks exist, add and adjust fluid Testing and Inspection.

NG -- CHECK AND REPAIR BRAKE FLUID LEAKS OR ADD FLUID
OK -- Continue to next step.

2. PERFORM AIR BLEEDING

(a) Bleed the air from the brake systems Service and Repair.

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

NEXT -- Continue to next step.

3. RECONFIRM DTC

(a) Check if the same DTC is recorded Reading and Clearing Diagnostic Trouble Codes.

Result:





B -- END
A -- Continue to next step.

4. CLEAR DTC

(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

NEXT -- END