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 |
Transmission Fluid Pressure Sensor / Switch "E" Circuit Low (P0989,P0990)
DESCRIPTION
ATF pressure switch No. 3 is installed in the lock-up solenoid ATF output passage
and is used to detect a malfunction in the lock-up solenoid.
DTC No.
DTC Detection Condition
Trouble Area
P0989
...
CD cannot be Ejected
PROCEDURE
1.
CHECK OPERATION
(a) Press the CD eject switch of the navigation receiver assembly for 10 seconds
or more and check that the CD is ejected.
OK:
CD is ejected.
NG
REPLACE NAVIGATION RECEIVER ...
Ignition Key Cylinder Light
Components
COMPONENTS
ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
1. INSPECT TRANSPONDER KEY AMPLIFIER
(a) Connect a positive (+) lead from battery to terminal 2 and a negative
(-) lead to terminal 6.
...