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) |
Solar Sensor
Components
COMPONENTS
ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR (SOLAR SENSOR)
(a) Connect the positive (+) lead of the battery to terminal 6 and the
negative (-) lead to terminal 3, and ...
Speed Signal Malfunction (B15C2)
DESCRIPTION
The navigation receiver assembly receives a vehicle speed signal from the combination
meter assembly and information from the navigation antenna assembly, and then adjusts
the vehicle position.
The navigation receiver assembly stores this DTC ...