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) |
Security Indicator Light Circuit
DESCRIPTION
When the engine immobiliser system is set, the security indicator flashes
continuously, but does not illuminate if the engine immobiliser system is
not set.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Before replacing ...
Crawl Indicator Light Remains ON
DESCRIPTION
Refer to Crawl Indicator Light does not Come ON (See page
).
WIRING DIAGRAM
Refer to Crawl Indicator Light does not Come ON (See page
).
CAUTION / NOTICE / HINT
NOTICE:
When replacing the master cylinder solenoid, perform calibration (See ...