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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 the "See" below.

ELECTRONIC POWER STEERING SYSTEM DIAGNOSTIC TROUBLE CODE CHART

DTC Code Detection Item Trouble Area See
C1511 Torque Sensor Circuit Malfunction 1. Wire harness
2. Torque sensor (built into power steering gear assembly)
3. Power steering ECU		 Refer to DTC C1511: Torque Sensor Circuit Malfunction; DTC C1512: Torque Sensor Circuit Malfunction; DTC C1513: Torque Sensor Circuit Malfunction
C1512 Torque Sensor Circuit Malfunction 1. Wire harness
2. Torque sensor (built into power steering gear assembly)
3. Power steering ECU		 Refer to DTC C1511: Torque Sensor Circuit Malfunction; DTC C1512: Torque Sensor Circuit Malfunction; DTC C1513: Torque Sensor Circuit Malfunction
C1513 Torque Sensor Circuit Malfunction 1. Wire harness
2. Torque sensor (built into power steering gear assembly)
3. Power steering ECU		 Refer to DTC C1511: Torque Sensor Circuit Malfunction; DTC C1512: Torque Sensor Circuit Malfunction; DTC C1513: Torque Sensor Circuit Malfunction
C1515 Torque Sensor Zero Point Adjustment Undone 1. Wire harness
2. Torque sensor (built into power steering gear assembly)
3. Power steering ECU		 Refer to DTC C1515: Torque Sensor Zero Point Adjustment Undone; DTC C1525: Rotation Angle Sensor Initialization Undone
C1516 Torque Sensor Zero Point Adjustment Incomplete 1. Wire harness
2. Torque sensor (built into power steering gear assembly)
3. Power steering ECU		 Refer to DTC C1516: Torque Sensor Zero Point Adjustment Incomplete; DTC C1526: Rotation Angle Sensor Initialization Incomplete
C1521 Motor Circuit Malfunction 1. Wire harness
2. Power steering motor (built into power steering gear assembly)
3. Power steering ECU		 Refer to DTC C1521: Motor Circuit Malfunction; DTC C1522: Motor Circuit Malfunction; DTC C1523: Motor Circuit Malfunction; DTC C1524: Motor Circuit Malfunction; DTC C1555: Motor Relay Welding Failure
C1522 Motor Circuit Malfunction 1. Wire harness
2. Power steering motor (built into power steering gear assembly)
3. Power steering ECU		 Refer to DTC C1521: Motor Circuit Malfunction; DTC C1522: Motor Circuit Malfunction; DTC C1523: Motor Circuit Malfunction; DTC C1524: Motor Circuit Malfunction; DTC C1555: Motor Relay Welding Failure
C1523 Motor Circuit Malfunction 1. Wire harness
2. Power steering motor (built into power steering gear assembly)
3. Power steering ECU		 Refer to DTC C1521: Motor Circuit Malfunction; DTC C1522: Motor Circuit Malfunction; DTC C1523: Motor Circuit Malfunction; DTC C1524: Motor Circuit Malfunction; DTC C1555: Motor Relay Welding Failure
C1524 Motor Circuit Malfunction 1. Wire harness
2. Power steering motor (built into power steering gear assembly)
3. Power steering ECU		 Refer to DTC C1521: Motor Circuit Malfunction; DTC C1522: Motor Circuit Malfunction; DTC C1523: Motor Circuit Malfunction; DTC C1524: Motor Circuit Malfunction; DTC C1555: Motor Relay Welding Failure
C1525 Rotation Angle Sensor Initialization Undone 1. Motor rotation angle sensor (built into power steering gear assembly)
2. Wire harness
3. Power steering ground wire
4. Power steering ECU		 Refer to DTC C1515: Torque Sensor Zero Point Adjustment Undone; DTC C1525: Rotation Angle Sensor Initialization Undone
C1526 Rotation Angle Sensor Initialization Incomplete 1. Motor rotation angle sensor (built into power steering gear assembly)
2. Wire harness
3. Power steering ground wire
4. Power steering ECU		 Refer to DTC C1516: Torque Sensor Zero Point Adjustment Incomplete; DTC C1526: Rotation Angle Sensor Initialization Incomplete
C1528 Motor Rotation Angle Sensor Malfunction 1. Motor rotation angle sensor (built into power steering gear assembly)
2. Wire harness
3. Power steering ground wire
4. Power steering ECU		 Refer to DTC C1528: Motor Rotation Angle Sensor Malfunction
C1531 ECU Malfunction 1. Power steering ECU Refer to DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: ECU Malfunction; DTC C1534: ECU Malfunction
C1532 ECU Malfunction 1. Power steering ECU Refer to DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: ECU Malfunction; DTC C1534: ECU Malfunction
C1533 ECU Malfunction 1. Power steering ECU Refer to DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: ECU Malfunction; DTC C1534: ECU Malfunction
C1534 ECU Malfunction 1. Power steering ECU Refer to DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: ECU Malfunction; DTC C1534: ECU Malfunction
C1541 Vehicle Speed Signal Malfunction 1. Speed sensor circuit
2. Skid control ECU
3. CAN communication system
4. Power steering ECU		 Refer to DTC C1541: Vehicle Speed Signal Malfunction
C1552 PIG Power Supply Voltage Malfunction 1. Wire harness
2. Power steering converter assembly
3. Power steering ECU		 Refer to DTC C1552: PIG Power Supply Voltage Malfunction
C1555 Motor Relay Welding Failure 1. Wire harness
2. Power steering motor (built into power steering gear assembly)
3. Power steering ECU		 Refer to DTC C1521: Motor Circuit Malfunction; DTC C1522: Motor Circuit Malfunction; DTC C1523: Motor Circuit Malfunction; DTC C1524: Motor Circuit Malfunction; DTC C1555: Motor Relay Welding Failure
C1563 DC / DC Converter IG Power Supply Voltage 1. Wire harness
2. Power steering converter assembly		 Refer to DTC C1563: DC / DC Converter IG Power Supply Voltage
C1564 Lost Communication with WDD Signal of DC / DC Converter 1. Wire harness
2. Power steering converter assembly
3. Power steering ECU		 Refer to DTC C1564: Lost Communication with WDD Signal of DC / DC Converter; DTC C1565: Lost Communication with LDD/ASST Signal of DC / DC Converter
C1565 Lost Communication with LDD/ASST Signal of DC / DC Converter 1. Wire harness
2. Power steering converter assembly
3. Power steering ECU		 Refer to DTC C1564: Lost Communication with WDD Signal of DC / DC Converter; DTC C1565: Lost Communication with LDD/ASST Signal of DC / DC Converter
C1567 Lost Communication between EPS ECU and VGRS ECU 1. Power steering ECU
2. Steering angle sensor		 Refer to DTC C1567: Lost Communication between EPS ECU and VGRS ECU
C1568 DC-DC Converter Malfunction 1. Power steering converter assembly Refer to DTC C1568: DC-DC Converter Malfunction
C1569 Battery Power Supply Voltage Malfunction 1. EPS fuse
2. Wire harness
3. Power steering ECU		 Refer to DTC C1569: Battery Power Supply Voltage Malfunction
C1581 Assist Map Number Un-Writing 1. CAN communication system
2. Power steering ECU
3. Suspension control ECU		 Refer to DTC C1581: Assist Map Number Un-Writing
U0129 Lost Communication with Brake System Control Module 1. CAN communication system
2. Skid control ECU		 Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U0130: Lost Communication with Steering Effort Control Module; DTC U1104: Lost Communication with Driving Support ECU; DTC U1105: Lost Communication with Parking Assist ECU
U0130 Lost Communication with Steering Effort Control Module 1. CAN communication system
2. VGRS control ECU		 Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U0130: Lost Communication with Steering Effort Control Module; DTC U1104: Lost Communication with Driving Support ECU; DTC U1105: Lost Communication with Parking Assist ECU
U1104 Lost Communication with Driving Support ECU 1. CAN communication system
2. Driving control ECU		 Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U0130: Lost Communication with Steering Effort Control Module; DTC U1104: Lost Communication with Driving Support ECU; DTC U1105: Lost Communication with Parking Assist ECU
U1105 Lost Communication with Parking Assist ECU 1. CAN communication system
2. Parking assist control ECU		 Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U0130: Lost Communication with Steering Effort Control Module; DTC U1104: Lost Communication with Driving Support ECU; DTC U1105: Lost Communication with Parking Assist ECU
U0100 Lost Communication with ECM / PCM "A"   Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U0130: Lost Communication with Steering Effort Control Module; DTC U1104: Lost Communication with Driving Support ECU; DTC U1105: Lost Communication with Parking Assist ECU
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