Diagnostic Trouble Code Chart [08/2013 - ]

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 the "See Test" below.

POWER STEERING SYSTEM

DTC Code	Detection Item	Trouble Area	Return-to-normal Condition	P/S Warning Light	See Test
C1511	Torque Sensor Circuit Malfunction	1. Steering column assembly (torque sensor) 2. Power steering ECU	Engine switch on (IG) again	*1	Refer to DTC C1511: Torque Sensor Circuit Malfunction; DTC C1512: Torque Sensor Circuit Malfunction; DTC C1513: Torque Sensor Circuit Malfunction; DTC C1514: Torque Sensor Power Supply Abnormal; DTC C1517: Torque Hold Abnormal [08/2013 - ]
C1512	Torque Sensor Circuit Malfunction	1. Steering column assembly (torque sensor) 2. Power steering ECU	Engine switch on (IG) again	*1	Refer to DTC C1511: Torque Sensor Circuit Malfunction; DTC C1512: Torque Sensor Circuit Malfunction; DTC C1513: Torque Sensor Circuit Malfunction; DTC C1514: Torque Sensor Power Supply Abnormal; DTC C1517: Torque Hold Abnormal [08/2013 - ]
C1513	Torque Sensor Circuit Malfunction	1. Steering column assembly (torque sensor) 2. Power steering ECU	Engine switch on (IG) again	*1	Refer to DTC C1511: Torque Sensor Circuit Malfunction; DTC C1512: Torque Sensor Circuit Malfunction; DTC C1513: Torque Sensor Circuit Malfunction; DTC C1514: Torque Sensor Power Supply Abnormal; DTC C1517: Torque Hold Abnormal [08/2013 - ]
C1514	Torque Sensor Power Supply Abnormal	1. Steering column assembly (torque sensor) 2. Power steering ECU	Engine switch on (IG) again	*1	Refer to DTC C1511: Torque Sensor Circuit Malfunction; DTC C1512: Torque Sensor Circuit Malfunction; DTC C1513: Torque Sensor Circuit Malfunction; DTC C1514: Torque Sensor Power Supply Abnormal; DTC C1517: Torque Hold Abnormal [08/2013 - ]
C1515	Torque Sensor Zero Point Adjustment Undone	There is no malfunction if this DTC is not output again after performing torque sensor zero point calibration.	Zero point calibration occurs	*1	Refer to DTC C1515: Torque Sensor Zero Point Adjustment Undone; DTC C1525: Rotation Angle Sensor Initialization Undone [08/2013 - ]
C1516	Torque Sensor Zero Point Adjustment Incomplete	There is no malfunction if this DTC is not output again after clearing the DTCs and torque sensor calibration value, and performing zero point calibration.	Clear DTC	*1	Refer to DTC C1516: Torque Sensor Zero Point Adjustment Incomplete; DTC C1526: Rotation Angle Sensor Initialization Incomplete [08/2013 - ]
C1517	Torque Hold Abnormal	1. Steering column assembly (torque sensor) 2. Power steering ECU	Engine switch on (IG) again	*1	Refer to DTC C1511: Torque Sensor Circuit Malfunction; DTC C1512: Torque Sensor Circuit Malfunction; DTC C1513: Torque Sensor Circuit Malfunction; DTC C1514: Torque Sensor Power Supply Abnormal; DTC C1517: Torque Hold Abnormal [08/2013 - ]
C1521	Motor Circuit Malfunction	Power steering ECU	Engine switch on (IG) again	*1	Refer to DTC C1521: Motor Circuit Malfunction; DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: ECU Malfunction; DTC C1534: ECU Malfunction; DTC C1554: Power Supply Relay Failure [08/2013 - ]
C1522	Motor Circuit Malfunction	1. Steering column assembly (Power steering motor) 2. Power steering ECU	Engine switch on (IG) again	*1	Refer to DTC C1522: Motor Circuit Malfunction; DTC C1523: Motor Circuit Malfunction; DTC C1524: Motor Circuit Malfunction; DTC C1555: Motor Relay Welding Failure [08/2013 - ]
C1523	Motor Circuit Malfunction	1. Steering column assembly (Power steering motor) 2. Power steering ECU	Engine switch on (IG) again	*1	Refer to DTC C1522: Motor Circuit Malfunction; DTC C1523: Motor Circuit Malfunction; DTC C1524: Motor Circuit Malfunction; DTC C1555: Motor Relay Welding Failure [08/2013 - ]
C1524	Motor Circuit Malfunction	1. Steering column assembly (Power steering motor) 2. Power steering ECU	Engine switch on (IG) again	*1	Refer to DTC C1522: Motor Circuit Malfunction; DTC C1523: Motor Circuit Malfunction; DTC C1524: Motor Circuit Malfunction; DTC C1555: Motor Relay Welding Failure [08/2013 - ]
C1525	Rotation Angle Sensor Initialization Undone	There is no malfunction if this DTC is not output again after performing rotation angle sensor value initialization.	Rotation angle sensor calibration occurs	*1	Refer to DTC C1515: Torque Sensor Zero Point Adjustment Undone; DTC C1525: Rotation Angle Sensor Initialization Undone [08/2013 - ]
C1526	Rotation Angle Sensor Initialization Incomplete	There is no malfunction if this DTC is not output again after clearing the DTCs and torque sensor calibration value, and performing rotation angle sensor value initialization.	Clear DTC	*1	Refer to DTC C1516: Torque Sensor Zero Point Adjustment Incomplete; DTC C1526: Rotation Angle Sensor Initialization Incomplete [08/2013 - ]
C1528	Motor Rotation Angle Sensor Malfunction	1. Motor rotation angle sensor (built into steering column assembly) 2. Power steering ECU	Engine switch on (IG) again	*1	Refer to DTC C1528: Motor Rotation Angle Sensor Malfunction [08/2013 - ]
C1531	ECU Malfunction	Power steering ECU	Engine switch on (IG) again	*1	Refer to DTC C1521: Motor Circuit Malfunction; DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: ECU Malfunction; DTC C1534: ECU Malfunction; DTC C1554: Power Supply Relay Failure [08/2013 - ]
C1532	ECU Malfunction	Power steering ECU	Engine switch on (IG) again	*1	Refer to DTC C1521: Motor Circuit Malfunction; DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: ECU Malfunction; DTC C1534: ECU Malfunction; DTC C1554: Power Supply Relay Failure [08/2013 - ]
C1533	ECU Malfunction	Power steering ECU	After normal judgment	*2	Refer to DTC C1521: Motor Circuit Malfunction; DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: ECU Malfunction; DTC C1534: ECU Malfunction; DTC C1554: Power Supply Relay Failure [08/2013 - ]
C1534	ECU Malfunction	Power steering ECU	Engine switch on (IG) again	*2	Refer to DTC C1521: Motor Circuit Malfunction; DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: ECU Malfunction; DTC C1534: ECU Malfunction; DTC C1554: Power Supply Relay Failure [08/2013 - ]
C1541	Vehicle Speed Signal Malfunction	1. Speed sensor circuit 2. Brake actuator assembly (Skid control ECU) 3. CAN communication system 4. Power steering ECU	Engine switch on (IG) again	*1	Refer to DTC C1541: Vehicle Speed Signal Malfunction [08/2013 - ]
C1551	IG Power Supply Voltage Malfunction	1. ECU-IG1 No. 1 fuse 2. IG power source circuit 3. Power steering ECU	Engine switch on (IG) again or after normal confirmation	*1	Refer to DTC C1551: IG Power Supply Voltage Malfunction [08/2013 - ]
C1552	PIG Power Supply Voltage Malfunction	1. EPS fuse 2. PIG power source circuit 3. Power steering ECU	Engine switch on (IG) again or after normal confirmation	*1	Refer to DTC C1552: PIG Power Supply Voltage Malfunction [08/2013 - ]
C1554	Power Supply Relay Failure	Power steering ECU	Engine switch on (IG) again	*1	Refer to DTC C1521: Motor Circuit Malfunction; DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: ECU Malfunction; DTC C1534: ECU Malfunction; DTC C1554: Power Supply Relay Failure [08/2013 - ]
C1555	Motor Relay Welding Failure	1. Steering column assembly (Power steering motor) 2. Power steering ECU	Engine switch on (IG) again	*1	Refer to DTC C1522: Motor Circuit Malfunction; DTC C1523: Motor Circuit Malfunction; DTC C1524: Motor Circuit Malfunction; DTC C1555: Motor Relay Welding Failure [08/2013 - ]
C1581	Assist Map Number Un-Writing	1. Power steering ECU 2. CAN communication system 3. ECM	Assist map written	*1	Refer to DTC C1581: Assist Map Number Un-Writing [08/2013 - ]
C1582	Assist Map Number Mismatch	1. Power steering ECU 2. CAN communication system 3. ECM	Engine switch on (IG) again	*1	Refer to DTC C1582: Assist Map Number Mismatch [08/2013 - ]
U0100	Lost Communication with ECM / PCM "A"	1. CAN communication system 2. ECM	After normal condition	*3	Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U1104: Lost Communication with Driving Support ECU [08/2013 - ]
U0129	Lost Communication with Brake System Control Module	1. CAN communication system 2. Brake actuator assembly (Skid control ECU)	After normal condition	*1	Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U1104: Lost Communication with Driving Support ECU [08/2013 - ]
U1104	Lost Communication with Driving Support ECU	1. CAN communication system 2. Driving support ECU	After normal condition	*2	Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U1104: Lost Communication with Driving Support ECU [08/2013 - ]

*1: Warning light comes on
*2: Warning light turns off (normal reset)
*3: When an error occurs during steering assist, the warning light does not illuminate. For errors that occur before assist (at the time of the decision to start assist), the warning light illuminates.