Diagnostic Trouble Code Chart

HINT:

If a trouble code is displayed during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to table below.

Variable Gear Ratio Steering System

VARIABLE GEAR RATIO STEERING SYSTEM - DIAGNOSTIC TROUBLE CODE (DTC) CHART

DTC Code	Detection Item	Trouble Area
C1591/51	Actuator Neutral Position Calibration Undone	-
C1592/52	Actuator Neutral Position Calibration Incomplete	Steering actuator Steering control ECU
C1593/53	Actuator Standard Position Malfunction	Steering actuator
C1595/55	Lost Communication with Steering Angle Sensor Module	Steering angle sensor Steering control ECU Wire harness or connector
C15A1/61	Actuator Malfunction	Wire harness or connector Steering actuator Steering control ECU
C15A2/62	Actuator Malfunction	Wire harness or connector Power source circuit Steering actuator Steering control ECU
C15A3/63	Actuator Malfunction	Wire harness or connector Steering actuator Steering control ECU
C15A4/64	Actuator Malfunction	Steering actuator
C15A5/65	Actuator Malfunction	Wire harness or connector Steering actuator Steering control ECU
C15A6/62	Actuator Malfunction	Power source circuit Wire harness or connector Steering actuator Steering control ECU
C15A9/66	Lock Holder Deviation Detection	Steering actuator
C15AA/66	Lock Mechanism Release Incomplete	Steering actuator
C15AB/66	Lock Mechanism Insertion Malfunction	Steering actuator
C15B1/71	ECU Malfunction	Steering control ECU
C15B2/72	ECU Malfunction	Steering control ECU
C15B3/73	ECU Malfunction	Steering control ECU
C15B4/71	ECU Malfunction	Steering control ECU
C15C1/74	Steering Angle Sensor Malfunction	Steering angle sensor CAN communication system Steering control ECU
C15C2/74	Steering Angle Sensor B+ Malfunction	Steering angle sensor CAN communication system Steering control ECU
C15C3/75	Brake System Control Module Malfunction	Skid control ECU CAN communication system Steering control ECU
C15C4/68	Steering Angle Signal (Test Mode DTC)	Steering angle sensor Wire harness or connector Steering control ECU
C15C5/69	Motor Revolution Angle Signal (Test Mode DTC)	Wire harness or connector Steering actuator Steering control ECU
C15C6/77	IG Power Supply Voltage Malfunction	P-IG1-3 fuse IG circuit Charging system Steering control ECU
C15C7/78	DC Motor Power Source Voltage Malfunction	VGRS fuse Wire harness or connector Power source circuit Steering control ECU
C15C8/79	Power Supply Relay Failure	VGRS fuse Wire harness or connector Steering control ECU
U0100/56	Lost Communication with ECM / PCM "A"	CAN communication system ECM
U0122/56	Lost Communication with Vehicle Dynamics Control Module	CAN communication system Skid control ECU
U0123/56	Lost Communication with Yaw Rate (Deceleration) Sensor Module	CAN communication system Yaw rate and deceleration sensor
U0126/56	Lost Communication with Steering Angle Sensor Module	CAN communication system Steering angle sensor
U0131/56	Lost Communication with Power Steering Control Module	CAN communication system Power steering ECU