Diagnostic Trouble Code Chart [11/2015 - 12/2018]

POWER STEERING SYSTEM

DTC No.	Detection Item	DTC Detection Condition	Warning Indicate	Return-to-normal Condition	Note	Link
C1511	Torque Sensor 1	Torque sensor malfunction	EPS warning light: Comes on	The ECU judges the system has returned to normal or the power switch is turned on (IG) again	-	Refer to DTC C1511: Torque Sensor 1; DTC C1512: Torque Sensor 2; DTC C1513: Torque Sensor Deviation Excessive; DTC C1514: Torque Sensor Power Supply Voltage; DTC C1517: Torque Hold [11/2015 - ]
C1512	Torque Sensor 2	Torque sensor malfunction	EPS warning light: Comes on	The ECU judges the system has returned to normal or the power switch is turned on (IG) again	-	Refer to DTC C1511: Torque Sensor 1; DTC C1512: Torque Sensor 2; DTC C1513: Torque Sensor Deviation Excessive; DTC C1514: Torque Sensor Power Supply Voltage; DTC C1517: Torque Hold [11/2015 - ]
C1513	Torque Sensor Deviation Excessive	Torque sensor malfunction	EPS warning light: Comes on	The ECU judges the system has returned to normal or the power switch is turned on (IG) again	-	Refer to DTC C1511: Torque Sensor 1; DTC C1512: Torque Sensor 2; DTC C1513: Torque Sensor Deviation Excessive; DTC C1514: Torque Sensor Power Supply Voltage; DTC C1517: Torque Hold [11/2015 - ]
C1514	Torque Sensor Power Supply Voltage	Torque sensor malfunction	EPS warning light: Comes on	Power switch on (IG) again	-	Refer to DTC C1511: Torque Sensor 1; DTC C1512: Torque Sensor 2; DTC C1513: Torque Sensor Deviation Excessive; DTC C1514: Torque Sensor Power Supply Voltage; DTC C1517: Torque Hold [11/2015 - ]
C1515	Torque Sensor Zero Point Adjustment Undone	This DTC is stored when torque sensor zero point calibration has not been performed.	EPS warning light: Comes on	Zero point calibration is performed or the power switch is turned on (IG) again	There is no malfunction if this DTC is not output again after performing zero point calibration.	Refer to DTC C1515: Torque Sensor Zero Point Adjustment Undone [11/2015 - ]
C1516	Torque Sensor Zero Point Adjustment Incomplete	Torque sensor zero point calibration is incomplete due to the steering wheel being touched during calibration.	EPS warning light: Comes on	Power switch on (IG) again	There is no malfunction if this DTC is not output again after clearing the DTC and torque sensor calibration value, and performing zero point calibration.	Refer to DTC C1516: Torque Sensor Zero Point Adjustment Incomplete [11/2015 - ]
C1517	Torque Hold	Torque sensor malfunction	EPS warning light: Comes on	Power switch on (IG) again	-	Refer to DTC C1511: Torque Sensor 1; DTC C1512: Torque Sensor 2; DTC C1513: Torque Sensor Deviation Excessive; DTC C1514: Torque Sensor Power Supply Voltage; DTC C1517: Torque Hold [11/2015 - ]
C1521	Short in Motor Circuit	Motor overcurrent	EPS warning light: Comes on	Power switch on (IG) again	-	Refer to DTC C1521: Short in Motor Circuit; DTC C1522: Power Supply Sensor; DTC C1523: Current Deviation Excessive; DTC C1528: Motor Rotation Angle Sensor; DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: Temperature Sensor Circuit is Low or High; DTC C1534: EEPROM; DTC C1555: Motor Relay Welding Failure [11/2015 - ]
C1522	Power Supply Sensor	Motor current sensor malfunction	EPS warning light: Comes on	Power switch on (IG) again	-	Refer to DTC C1521: Short in Motor Circuit; DTC C1522: Power Supply Sensor; DTC C1523: Current Deviation Excessive; DTC C1528: Motor Rotation Angle Sensor; DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: Temperature Sensor Circuit is Low or High; DTC C1534: EEPROM; DTC C1555: Motor Relay Welding Failure [11/2015 - ]
C1523	Current Deviation Excessive	Excessively large current deviation	EPS warning light: Comes on	Power switch on (IG) again	-	Refer to DTC C1521: Short in Motor Circuit; DTC C1522: Power Supply Sensor; DTC C1523: Current Deviation Excessive; DTC C1528: Motor Rotation Angle Sensor; DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: Temperature Sensor Circuit is Low or High; DTC C1534: EEPROM; DTC C1555: Motor Relay Welding Failure [11/2015 - ]
C1528	Motor Rotation Angle Sensor	Motor rotation angle sensor malfunction	EPS warning light: Comes on	Power switch on (IG) again	-	Refer to DTC C1521: Short in Motor Circuit; DTC C1522: Power Supply Sensor; DTC C1523: Current Deviation Excessive; DTC C1528: Motor Rotation Angle Sensor; DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: Temperature Sensor Circuit is Low or High; DTC C1534: EEPROM; DTC C1555: Motor Relay Welding Failure [11/2015 - ]
C1531	ECU Malfunction	ECU internal malfunction (CPU malfunction)	EPS warning light: Comes on	The ECU judges the system has returned to normal or the power switch is turned on (IG) again	-	Refer to DTC C1521: Short in Motor Circuit; DTC C1522: Power Supply Sensor; DTC C1523: Current Deviation Excessive; DTC C1528: Motor Rotation Angle Sensor; DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: Temperature Sensor Circuit is Low or High; DTC C1534: EEPROM; DTC C1555: Motor Relay Welding Failure [11/2015 - ]
C1532	ECU Malfunction	ECU internal malfunction (Peripheral circuit malfunction)	EPS warning light: Comes on	Power switch on (IG) again	-	Refer to DTC C1521: Short in Motor Circuit; DTC C1522: Power Supply Sensor; DTC C1523: Current Deviation Excessive; DTC C1528: Motor Rotation Angle Sensor; DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: Temperature Sensor Circuit is Low or High; DTC C1534: EEPROM; DTC C1555: Motor Relay Welding Failure [11/2015 - ]
C1533	Temperature Sensor Circuit is Low or High	ECU internal malfunction (Substrate temperature sensor malfunction)	EPS warning light: Comes on	Power switch on (IG) again	-	Refer to DTC C1521: Short in Motor Circuit; DTC C1522: Power Supply Sensor; DTC C1523: Current Deviation Excessive; DTC C1528: Motor Rotation Angle Sensor; DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: Temperature Sensor Circuit is Low or High; DTC C1534: EEPROM; DTC C1555: Motor Relay Welding Failure [11/2015 - ]
C1534	EEPROM	ECU internal malfunction (EEPROM error)	EPS warning light: Comes on	Power switch on (IG) again	-	Refer to DTC C1521: Short in Motor Circuit; DTC C1522: Power Supply Sensor; DTC C1523: Current Deviation Excessive; DTC C1528: Motor Rotation Angle Sensor; DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: Temperature Sensor Circuit is Low or High; DTC C1534: EEPROM; DTC C1555: Motor Relay Welding Failure [11/2015 - ]
C1541	Vehicle Speed Signal	Vehicle speed signals via CAN communication are cut off for 3 seconds or more.	EPS warning light: Comes on	The ECU judges the system has returned to normal or the power switch is turned on (IG) again	-	Refer to DTC C1541: Vehicle Speed Signal [11/2015 - 12/2018]
C1551	IG Power Supply Voltage	Open or short in IG power source circuit with power switch on (IG)	EPS warning light: Comes on	The ECU judges the system has returned to normal or the power switch is turned on (IG) again	-	Refer to DTC C1551: IG Power Supply Voltage [11/2015 - ]
C1552	PIG Power Supply Voltage	PIG power source circuit malfunction	EPS warning light: Comes on	Power switch on (IG) again	-	Refer to DTC C1552: PIG Power Supply Voltage; DTC C1554: Power Supply Relay Failure [11/2015 - ]
C1554	Power Supply Relay Failure	Power source relay circuit malfunction	EPS warning light: Comes on	Power switch on (IG) again	-	Refer to DTC C1552: PIG Power Supply Voltage; DTC C1554: Power Supply Relay Failure [11/2015 - ]
C1555	Motor Relay Welding Failure	Motor relay circuit malfunction	EPS Warning Light: Comes on	Power switch on (IG) again	-	Refer to DTC C1521: Short in Motor Circuit; DTC C1522: Power Supply Sensor; DTC C1523: Current Deviation Excessive; DTC C1528: Motor Rotation Angle Sensor; DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: Temperature Sensor Circuit is Low or High; DTC C1534: EEPROM; DTC C1555: Motor Relay Welding Failure [11/2015 - ]
C1567	Error in Matching of ECUs	An incompatible steering sensor is detected.	EPS warning light: Comes on	The ECU judges the system has returned to normal or the power switch is turned on (IG) again	-	Refer to DTC C1567: Error in Matching of ECUs [11/2015 - ]
C1581	Assist Map Number Un-Writing	Assist map not written in power steering ECU assembly	EPS warning light: Comes on	Assist Map Writing is performed or the power switch is turned on (IG) again	-	Refer to DTC C1581: Assist Map Number Un-Writing [11/2015 - ]
C1582	Assist Map Number Mismatch	Assist map number mismatch	EPS warning light: Does not come on	Assist Map Writing is performed or the power switch is turned on (IG) again	-	Refer to DTC C1582: Assist Map Number Mismatch [11/2015 - ]
U0129	Lost Communication with Brake System Control Module	Lost communication with skid control ECU (brake booster with master cylinder assembly)	EPS warning light: Comes on	The ECU judges the system has returned to normal or the power switch is turned on (IG) again	-	Refer to DTC U0129: Lost Communication with Brake System Control Module; DTC U023A: Lost Communication with Front Camera Module; DTC U0293: Lost Communication with Hybrid Control Module; DTC U1110: Lost Communication with Intuitive Parking Assist Module [11/2015 - 07/2020]
U023A	Lost Communication with Front Camera Module	Lost communication with forward recognition camera	EPS warning light: Does not come on	The ECU judges the system has returned to normal or the power switch is turned on (IG) again	w/ Toyota Safety Sense P	Refer to DTC U0129: Lost Communication with Brake System Control Module; DTC U023A: Lost Communication with Front Camera Module; DTC U0293: Lost Communication with Hybrid Control Module; DTC U1110: Lost Communication with Intuitive Parking Assist Module [11/2015 - 07/2020]
U0293	Lost Communication with Hybrid Control Module	Lost communication with hybrid vehicle control ECU	EPS warning light: Does not come on	The ECU judges the system has returned to normal or the power switch is turned on (IG) again	-	Refer to DTC U0129: Lost Communication with Brake System Control Module; DTC U023A: Lost Communication with Front Camera Module; DTC U0293: Lost Communication with Hybrid Control Module; DTC U1110: Lost Communication with Intuitive Parking Assist Module [11/2015 - 07/2020]
U1110	Lost Communication with Intuitive Parking Assist Module	Lost communication with clearance warning ECU assembly	EPS warning light: Does not come on	The ECU judges the system has returned to normal or the power switch is turned on (IG) again	w/ Simple Advanced Parking Guidance System	Refer to DTC U0129: Lost Communication with Brake System Control Module; DTC U023A: Lost Communication with Front Camera Module; DTC U0293: Lost Communication with Hybrid Control Module; DTC U1110: Lost Communication with Intuitive Parking Assist Module [11/2015 - 07/2020]