DESCRIPTION
The power steering ECU assembly receives steering angle signals from the steering angle sensor via CAN communication. The power steering ECU assembly provides appropriate assisting force in accordance with the steering angle signal.
DTC Code |
DTC Detection Condition |
Trouble Area |
---|---|---|
C15F1 |
An abnormal steering angle signal is received. |
|
PROCEDURE
1. |
CHECK OTHER DTC OUTPUT (CAN COMMUNICATION SYSTEM) |
(a) Check if DTC U0126 is output (See page ).
Result |
Proceed to |
---|---|
DTC U0126 is not output. |
A |
DTC U0126 is output. |
B |
HINT:
DTC U0126 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 related to the steering angle sensor
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. INSPECT VOLTAGE INVERTER ASSEMBLY
HINT:
Remove interior parts so that the voltage inverter can be seen.
(a) Disconnect the voltage inverter connector.
(b) Measur ...
Unable to Unlock Steering Wheel (Engine cannot Start)
DESCRIPTION
The power management control ECU supplies the power to activate the motor of
the steering lock actuator assembly.
The steering lock actuator activates the steering lock motor and moves the lock
bar into the steering column to lock the steerin ...