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 |
System Diagram
SYSTEM DIAGRAM
Communication Method
Transmitting ECU
Receiver
Signal
Communication Method
Main body ECU (Driver Side Junction Block Assembly)
Power back door ECU (Power back door motor ...
Short in Side Squib LH Circuit (B1825/56-B1828/56)
DESCRIPTION
The side squib LH circuit consists of the center airbag sensor assembly and front
seat side airbag assembly LH.
The center airbag sensor assembly uses this circuit to deploy the airbag when
deployment conditions are met.
These DTCs are store ...
Canceling the power back door system (vehicles with power back door)
Turn the main switch to disable the power back door system.
1. Inoperative
2. Operative
The back door cannot be operated even with the wireless remote control or power
back door switch.
A buzzer will sound twice if the power back door switch is pressed ...