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" column below.
POWER STEERING SYSTEM
| DTC Code | Detection Item | Trouble Area | Return-to-normal Condition | P/S Warning Light | See |
|---|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
- *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.