Lexus NX: Motor Drive Permission Malfunction (C1451)
DESCRIPTION
If air bleeding has not been performed, the skid control ECU (brake booster with master cylinder assembly) stores DTC C1451 to prevent the entry of air due to pump motor operation.
DTC C1451 is stored when Invalid Mode is selected, the system will not return to normal until the air bleeding procedure is performed.
| DTC No. | Detection Item | INF Code | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|---|
| C1451 | Motor Drive Permission Malfunction | - | Air bleeding has not been performed. |
| - |
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 the fluid level.
Click here
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| NG | .gif) | CHECK AND REPAIR BRAKE FLUID LEAKS OR ADD FLUID |
|
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| 2. | PERFORM AIR BLEEDING |
(a) Bleed the air from the brake system.
Click here
HINT:
If air bleeding has been performed, this DTC will be cleared.
|
| 3. | RECONFIRM DTC |
(a) Check if the same DTC is output.
Click here
| Result | Proceed to |
|---|---|
| DTC C1451 is output. | A |
| DTC C1451 is not output. | B |
| B | | END |
|
| 4. | CLEAR DTC |
(a) Clear the DTCs.
Click here
| NEXT | | END |
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