Lexus LX - Page 125

DTC C15C1/74 Steering Angle Sensor Malfunction
DTC C15C2/74 Steering Angle Sensor B+ Malfunction
for Preparation Click here
DESCRIPTION
The steering control ECU detects a steering angle sensor malfunction by receiving an error signal from the steering angle sensor via CAN
communication. If the steering control ECU detects this error signal, it will turn the master warning light on, store these DTCs, and stop VGRS operation.
DTC Code DTC Detection Condition Trouble Area
C15C1/74
The steering control ECU receives a steering angle sensor
malfunction signal via CAN communication.
Steering angle sensor
Harness or connector
CAN communication system
Steering control ECU
C15C2/74
The steering control ECU receives a B+ open circuit signal from the
steering angle sensor via CAN communication.
Steering angle sensor
Harness or connector
CAN communication system
Steering control ECU
WIRING DIAGRAM
INSPECTION PROCEDURE
1.CHECK DTC (CAN COMMUNICATION SYSTEM)
a. Using the intelligent tester, check if the CAN communication system is functioning normally ( Click here for LHD, Click here for RHD).
Result
Result Proceed to
DTC is not output A
DTC is output (for LHD) B
DTC is output (for RHD) C