DESCRIPTION
If the power steering ECU detects these DTCs, it will shut off the motor relay circuit (built into the power steering ECU) and stop power assist. However, power assist continues if DTC C1533 or C1534 is stored.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
C1521 |
Motor overcurrent |
Power steering ECU |
C1531 |
ECU internal malfunction (CPU malfunction) |
Power steering ECU |
C1532 |
ECU internal malfunction (Peripheral circuit malfunction) |
Power steering ECU |
C1533 |
ECU internal malfunction (Substrate temperature sensor malfunction) |
Power steering ECU |
C1534 |
ECU internal malfunction (EEPROM error) |
Power steering ECU |
C1554 |
Power source relay circuit malfunction |
Power steering ECU |
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 FOR DTC |
(a) Clear the DTCs (See page ).
(b) Check for DTCs (See page ).
OK:
DTC is not output.
OK | ![]() |
CHECK INTERMITTENT PROBLEMS |
NG | ![]() |
REPLACE POWER STEERING ECU |
Audio system types
► Vehicles with Display Audio system
Type A
Type B
Refer to the “Display Audio System Owner’s Manual”.
► Vehicles with a navigation system
Refer to the “Navigation System Owner’s Manual”. ...
Removal
REMOVAL
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for the LH side and RH side.
The following procedure listed below is for the LH side.
PROCEDURE
1. REMOVE REAR WHEEL
2. SEPARATE REAR SPEED SENSOR
3. REMOVE REAR AXLE SHAF ...
Yaw Rate Sensor Output Malfunction (C1448/98)
DESCRIPTION
The skid control ECU receives signals from the yaw rate and acceleration sensor
via the CAN communication system.
The yaw rate sensor has a built-in acceleration sensor and detects the vehicle
condition.
DTC Code
DTC De ...