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
Motor Invalid 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 | MIL |
Note | | C1451 |
Motor Drive Permission Malfunction |
1152 | Either of the following is detected:
- Using the Techstream, "Motor Invalid" of the "ECB Utility" has been performed.
- The brake booster with master cylinder assembly has been replaced.
| Air bleeding not performed |
Only DTC C1451 (INF code 1152) is stored: Does not come on SAE Code C1451 is stored: Comes on |
- INF Code 1152: SAE Code C1451
- Electronically controlled brake system DTC
HINT:
- DTC C1451 (INF code 1152) is cleared when the conditions return to normal.
- ECB: Electronically Controlled Brake System
| MONITOR DESCRIPTION SAE Code C1451:
C1451 (INF Code 1152):
MONITOR STRATEGY HINT: SAE code only. C1451 |
Related DTCs | C1451: High pressure hydraulic tube air bleeding not complete | |
Required Sensors/Components(Main) | High pressure hydraulic tube | |
Required Sensors/Components(Related) | Speed sensor | |
Frequency of Operation | Continuous | |
Duration | - | | MIL Operation |
Immediately | | Sequence of Operation |
None | TYPICAL ENABLING CONDITIONS
HINT: SAE code only. C1451 |
Monitor runs whenever the following DTCs are not stored |
None | | Vehicle speed |
40 km/h (25 mph) or more | TYPICAL MALFUNCTION THRESHOLDS
HINT: SAE code only. C1451 |
High pressure hydraulic tube air bleeding | Not complete | COMPONENT OPERATING RANGE
HINT: SAE code only. C1451 |
High pressure hydraulic tube air bleeding | Complete | CONFIRMATION DRIVING PATTERN
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the power switch off.
- Turn the power switch on (READY).
- Turn the Techstream on.
- Drive the vehicle at a speed of 40 km/h (25 mph) or more for 1 second.
- Enter the following menus: Chassis / ABS/VSC/TRAC / Trouble Codes.
- Read the DTCs.
HINT:
- If a DTC is output, the system is malfunctioning.
- If a DTC is not output, perform the following procedure.
- If the DTCs are not output, perform a universal trip and check for permanent DTCs.
Click here 
HINT:
- If a permanent DTC is output, the system is malfunctioning.
- If no permanent DTCs are output, the system is normal.
PROCEDURE
(a) Bleed the air from the brake system. Click here
HINT: If air bleeding has been performed, this DTC will be cleared.
|
NEXT |
 | |
(a) Check if the same DTC is output.
Click here Chassis > ABS/VSC/TRAC > Trouble Codes
| Result |
Proceed to | | DTC C1451 is output. |
A | | DTC C1451 is not output. |
B |
| A |
 | PERFORM AIR BLEEDING AGAIN |
| B |
| END | |
