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 |
Operation Check
OPERATION CHECK
1. CHECK FUNCTION
(a) Check that the key reminder warning buzzer sounds.
(1) With the driver side door closed, insert the key into the ignition key cylinder
and then make sure that the key is in LOCK or ACC.
(2) Check that the buzzer soun ...
Removal
REMOVAL
PROCEDURE
1. REMOVE INSTRUMENT PANEL REINFORCEMENT ASSEMBLY WITH AIR CONDITIONING UNIT
(See page )
2. REMOVE COOL AIR INTAKE DUCT SEAL
3. REMOVE INLET NO. 2 AIR CLEANER
4. REMOVE AIR CLEANER CAP WITH HOSE
5. REMOVE AIR CLEANER CASE
...
Operation Check
OPERATION CHECK
1. CHECK POWER SEAT FUNCTION
(a) Check the basic functions.
(1) Operate the power seat switches and check to make sure each seat function
work:
Sliding
Front vertical (Driver side only)
Lumbar support
Lifter (Driver s ...