DESCRIPTION
The power steering ECU assembly receives engine speed signals from the ECM via CAN communication. The power steering ECU assembly 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. |
|
PROCEDURE
|
1. |
CHECK OTHER DTC OUTPUT (CAN COMMUNICATION SYSTEM) |
(a) Check if DTC U0100 is output (See page
).
|
Result |
Proceed to |
|---|---|
|
DTC U0100 is not output |
A |
|
DTC U0100 is output |
B |
HINT:
DTC U0100 indicates a CAN communication malfunction in the power steering system.
| B | |
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) |
|
|
2. |
CHECK OTHER DTC OUTPUT (SFI SYSTEM) |
(a) Using the Techstream, check for DTCs and confirm that there are no problems
in the SFI system (See page
).
|
Result |
Proceed to |
|---|---|
|
DTC is not output |
A |
|
DTC is output |
B |
| A | |
REPLACE POWER STEERING ECU ASSEMBLY |
| B | |
GO TO SFI SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) |
Vehicle Speed Signal (C1541)
Power Steering Warning Light CircuitOpen in Outside Luggage Compartment Electrical Key Antenna Circuit (B27A8)
DESCRIPTION
The certification ECU generates a request signal and transmits the signal to
the electrical key antenna (outside luggage). The electrical key antenna (outside
luggage) detects that the electrical key is brought close to the vehicle, and when
...
Accessories, spare parts and modification of your Toyota
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