Diagnostic Trouble Code Chart
HINT:
If any DTCs are displayed during the DTC check, inspect the circuit listed for those DTCs. For details of each DTC, refer to the article indicated in the DTC chart.
POWER STEERING SYSTEM
| DTC Code | Detection Item | Trouble Area | Normal Return | EPS Warning Light | See |
|---|---|---|---|---|---|
| C1511 | Torque Sensor Circuit Malfunction | - Steering column assembly (Torque sensor) - Power steering ECU |
Ignition switch ON again | Comes on | 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 | - Steering column assembly (Torque sensor) - Power steering ECU |
Ignition switch ON again | Comes on | 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 | - Steering column assembly (Torque sensor) - Power steering ECU |
Ignition switch ON again | Comes on | 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 | - Steering column assembly (Torque sensor) - Power steering ECU |
Ignition switch ON again | Comes on | 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 | Comes on | 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 | Comes on | Refer to DTC C1516: Torque Sensor Zero Point Adjustment Incomplete; DTC C1526: Rotation Angle Sensor Initialization Incomplete |
| C1517 | Torque Hold Abnormal | - Steering column assembly (Torque sensor) - Power steering ECU |
Ignition switch ON again | Come on | 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 | Ignition switch ON again | Comes on | Refer to DTC C1521: Motor Circuit Malfunction; DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: ECU Malfunction; DTC C1534: ECU Malfunction |
| C1522 | Motor Circuit Malfunction | - Steering column assembly - Power steering ECU |
Ignition switch ON again | Comes on | 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 | - Steering column assembly - Power steering ECU |
Ignition switch ON again | Comes on | 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 | - Steering column assembly - Power steering ECU |
Ignition switch ON again | Comes on | 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 | Come on | 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 | Comes on | Refer to DTC C1516: Torque Sensor Zero Point Adjustment Incomplete; DTC C1526: Rotation Angle Sensor Initialization Incomplete |
| C1528 | Motor Rotation Angle Sensor Malfunction | - Steering column assembly - Power steering ECU |
Ignition switch ON again | Comes on | Refer to DTC C1528: Motor Rotation Angle Sensor Malfunction |
| C1531 | ECU Malfunction | Power steering ECU | Ignition switch ON again | Comes on | Refer to DTC C1521: Motor Circuit Malfunction; DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: ECU Malfunction; DTC C1534: ECU Malfunction |
| C1532 | ECU Malfunction | Power steering ECU | Ignition switch ON again | Comes on | Refer to DTC C1521: Motor Circuit Malfunction; DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: ECU Malfunction; DTC C1534: ECU Malfunction |
| C1533 | ECU Malfunction | Power steering ECU | After normal judgment | Does not come on | Refer to DTC C1521: Motor Circuit Malfunction; DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: ECU Malfunction; DTC C1534: ECU Malfunction |
| C1534 | ECU Malfunction | Power steering ECU | Ignition switch ON again | Does not come on | Refer to DTC C1521: Motor Circuit Malfunction; DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: ECU Malfunction; DTC C1534: ECU Malfunction |
| C1541 | Vehicle Speed Signal Malfunction | - Speed sensor circuit - Brake actuator assembly (Skid control ECU) - CAN communication system - Power steering ECU |
After normal judgment | Comes on | Refer to DTC C1541: Vehicle Speed Signal Malfunction |
| C1551 | IG Power Supply Voltage Malfunction | - ECU-IG No. 1 fuse - IG power source circuit - Power steering ECU |
After normal judgment | Comes on | Refer to DTC C1551: IG Power Supply Voltage Malfunction |
| C1552 | PIG Power Supply Voltage Malfunction | - PIG power source circuit - Power steering ECU |
After normal judgment | Comes on | Refer to DTC C1552: PIG Power Supply Voltage Malfunction; DTC C1554: Power Supply Relay Failure |
| C1554 | Power Supply Relay Failure | - PIG power source circuit - Power steering ECU |
Ignition switch ON again | Comes on | Refer to DTC C1552: PIG Power Supply Voltage Malfunction; DTC C1554: Power Supply Relay Failure |
| C1555 | Motor Relay Welding Failure | - Steering column assembly - Power steering ECU |
Ignition switch ON again | Comes on | 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 | - Assist map is not written - CAN communication system - Incorrect brake actuator assembly (Skid control ECU) - Power steering ECU |
Assist map write | Comes on | Refer to DTC C1581: Assist Map Number Un-Writing |
| C1582 | Assist Map Number Mismatch | - CAN communication system - Incorrect brake actuator assembly (Skid control ECU) - Power steering ECU |
Ignition switch ON again | Does not come on | Refer to DTC C1582: Assist Map Number Mismatch |
| U0100 | Lost Communication with ECM / PCM "A" | - CAN communication system - ECM |
After normal communication | Does not come on | Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module |
| U0129 | Lost Communication with Brake System Control Module | - CAN communication system - Brake actuator assembly (Skid control ECU) |
After normal communication | Comes on | Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module |