DESCRIPTION
The power steering ECU receives vehicle speed signals from the brake actuator assembly (skid control ECU) via CAN communication. The ECU provides appropriate assisting force in accordance with the vehicle speed, based on the signals.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
C1541 |
This DTC is detected when vehicle speed signals via CAN communication are cut off for 3 seconds or more. |
|
CAUTION / NOTICE / HINT
NOTICE:
If the power steering ECU has been replaced with a new one, perform the rotation
angle sensor initialization and torque sensor zero point calibration (See page
).
PROCEDURE
1. |
CHECK OTHER DTC OUTPUT (CAN COMMUNICATION SYSTEM) |
(a) Check if DTC U0129 is output (See page
).
Result |
Proceed to |
---|---|
No output |
A |
U0129 is output |
B |
HINT:
DTC U0129 indicates an brake actuator assembly (skid control ECU) communication malfunction in the power steering system.
B | ![]() |
GO TO CAN COMMUNICATION SYSTEM |
|
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 |
B | ![]() |
REPAIR CIRCUIT INDICATED BY OUTPUT CODE |
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL BEARING BRACKET HOLE SNAP RING (for RH Side)
(a) Install a new bearing bracket hole snap ring to the front drive shaft assembly
RH.
2. INSTALL FRONT DRIVE SHAFT BEARING (for RH Side)
(a) Using SST, install a ne ...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
Front Power Seat Control System
Symptom
Suspected Area
See page
All functions do not operate
P/SEAT fuse
-
Front power seat switch
...
Washer Nozzle(for Front Side)
Components
COMPONENTS
ILLUSTRATION
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT FRONT WASHER NOZZLE SUB-ASSEMBLY
(a) With the engine running, check that the center stream of washer fluid sprays
on the windshield within the ar ...