Dtc C1544 High Engine Revolution Signal
DESCRIPTION
INSPECTION PROCEDURE
CHECK OTHER DTC OUTPUT (CAN COMMUNICATION SYSTEM)
CHECK OTHER DTC OUTPUT (ECD SYSTEM)
DTC C1544 High Engine Revolution Signal
DESCRIPTION
The power steering ECU receives engine speed signals from the ECM via CAN communication. The power steering ECU provides appropriate assisting force in accordance with the engine speed signal.
| DTC Code | DTC Detection Condition | Trouble Area |
| C1544 | An abnormal engine speed signal is received. | ECD system
CAN communication system
Power steering ECU assembly
|
INSPECTION PROCEDURE
| 1.CHECK OTHER DTC OUTPUT (CAN COMMUNICATION SYSTEM) |
Check if DTC U0100 is output ().
Result| Result | Proceed to |
| DTC U0100 is not output. | A |
| DTC U0100 is output. | B |
- DTC U0100 indicates a CAN communication malfunction in the power steering system.
| | REPAIR CIRCUIT INDICATED BY OUTPUT
CODE ()
|
|
|
| 2.CHECK OTHER DTC OUTPUT (ECD SYSTEM) |
Using the GTS, check for DTCs and confirm that there are no problems in the ECD system ().
Result| Result | Proceed to |
| DTC is not output. | A |
| DTC is output. | B |
| | GO TO ECD SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) ()
|
|
|
| A | |
| |
| REPLACE POWER STEERING ECU ASSEMBLY ()
|
|