DESCRIPTION
The power steering ECU assembly receives vehicle speed signals from the master cylinder solenoid (skid control ECU) via CAN communication. The power steering ECU assembly provides appropriate assisting force in accordance with the vehicle speed signal.
DTC Code |
DTC Detection Condition |
Trouble Area |
---|---|---|
C1541 |
An abnormal vehicle speed signal is received. |
|
PROCEDURE
1. |
CHECK OTHER DTC OUTPUT (CAN COMMUNICATION SYSTEM) |
(a) Check if DTC U0129 is output (See page ).
Result |
Proceed to |
---|---|
DTC U0129 is not output. |
A |
DTC U0129 is output. |
B |
HINT:
DTC U0129 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 (VEHICLE STABILITY CONTROL SYSTEM) |
(a) Using the Techstream, check for DTCs and confirm that there are no problems
in the vehicle stability control system (See page
).
Result |
Proceed to |
---|---|
DTC is not output. |
A |
DTC is output. |
B |
A | ![]() |
REPLACE POWER STEERING ECU ASSEMBLY |
B | ![]() |
GO TO VEHICLE STABILITY CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) |
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. CHECK LOWER NO. 2 INSTRUMENT PANEL AIRBAG ASSEMBLY (VEHICLE NOT INVOLVED IN
COLLISION)
(a) Perform a diagnostic system check (See page
).
(b) With the lower No. 2 instrument panel airbag installed on the vehicle, perf ...
Reverse Signal Circuit
DESCRIPTION
The navigation receiver assembly receives a reverse signal from the park/neutral
position switch assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
After replacing the navigation receiver assembly of vehicles subscribed
t ...