Diagnostic Trouble Code Chart

HINT:

If a trouble code is displayed during the DTC check, inspect the circuit listed for that code. For details of each code, refer to the "See " for the respective "DTC No." in the DTC chart.

Electronic power steering system

DIAGNOSTIC TROUBLE CODE CHART

DTC No.	Detection Item	Trouble Area
C1511	Torque Sensor Circuit Malfunction	Steering column (torque sensor) Power steering ECU
C1512	Torque Sensor Circuit Malfunction	Steering column (torque sensor) Power steering ECU
C1513	Torque Sensor Circuit Malfunction	Steering column (torque sensor) Power steering ECU
C1514	Torque Sensor Power Supply Abnormal	Steering column (torque sensor) Power steering ECU
C1515	Torque Sensor Zero Point Adjustment Undone	Torque sensor zero point calibration Steering column
C1516	Torque Sensor Zero Point Adjustment Incomplete	Torque sensor zero point calibration failure Steering column
C1517	Torque Hold Abnormal	Steering column (torque sensor) Power steering ECU
C1524	Motor Circuit Malfunction	Steering column (power steering motor) Power steering ECU
C1531	ECU Malfunction	Power steering ECU
C1532	ECU Malfunction	Power steering ECU
C1533	ECU Malfunction	Power steering ECU
C1534	ECU Malfunction	Power steering ECU
C1551	IG Power Supply Voltage Malfunction	ECU-IG fuse IG power source circuit Power steering ECU
C1552	PIG Power Supply Voltage Malfunction	EPS fuse PIG power source circuit Power steering ECU
C1554	Power Supply Relay Failure	EPS fuse PIG power source circuit Power steering ECU
C1555	Motor Relay Welding Failure	EPS fuse PIG power source circuit Power steering ECU
C1581	Assist Map Number Un-Writing	Power steering ECU
U0073	Control Module Communication Bus OFF	CAN communication system
U0121	Lost Communication with Antilock Brake System (ABS) Control Module	CAN communication system Skid control ECU