Diagnostic Trouble Code Chart
HINT:
If any DTCs are displayed during the DTC check, inspect the circuit listed for these DTCs. For details of each DTC, refer to the "See page" indicated in the DTC chart.
ELECTRIC POWER STEERING SYSTEM
| DTC Code | Detection Item | Trouble Area | Normal Function Return Condition | P/S Warning Light | See page |
|---|---|---|---|---|---|
| C1511/11 | Torque Sensor 1 Malfunction | - Steering column assembly (Torque sensor) - Power steering ECU |
Ignition switch ON again | ◦ | Refer to DTC C1511/11: Torque Sensor 1 Malfunction; DTC C1512/11: Torque Sensor 2 Malfunction; DTC C1513/11: Torque Sensor Deviation Excessive; DTC C1514/11: Torque Sensor Power Supply Voltage Malfunction |
| C1512/11 | Torque Sensor 2 Malfunction | - Steering column assembly (Torque sensor) - Power steering ECU |
Ignition switch ON again | ◦ | Refer to DTC C1511/11: Torque Sensor 1 Malfunction; DTC C1512/11: Torque Sensor 2 Malfunction; DTC C1513/11: Torque Sensor Deviation Excessive; DTC C1514/11: Torque Sensor Power Supply Voltage Malfunction |
| C1513/11 | Torque Sensor Deviation Excessive | - Steering column assembly (Torque sensor) - Power steering ECU |
Ignition switch ON again | ◦ | Refer to DTC C1511/11: Torque Sensor 1 Malfunction; DTC C1512/11: Torque Sensor 2 Malfunction; DTC C1513/11: Torque Sensor Deviation Excessive; DTC C1514/11: Torque Sensor Power Supply Voltage Malfunction |
| C1514/11 | Torque Sensor Power Supply Voltage Malfunction | - Steering column assembly (Torque sensor) - Power steering ECU |
Ignition switch ON again | ◦ | Refer to DTC C1511/11: Torque Sensor 1 Malfunction; DTC C1512/11: Torque Sensor 2 Malfunction; DTC C1513/11: Torque Sensor Deviation Excessive; DTC C1514/11: Torque Sensor Power Supply Voltage Malfunction |
| C1521/25 | Short in Motor Circuit | - Power steering ECU | Ignition switch ON again | ◦ | Refer to DTC C1521/25: Short in Motor Circuit |
| C1524/24 | Motor Terminal Voltage Malfunction | - Steering column assembly - Power steering ECU |
Ignition switch ON again | ◦ | Refer to DTC C1524/24: Motor Terminal Voltage Malfunction; DTC C1555/25: Motor Relay Welding Failure |
| C1528/12 | Motor Rotation Angle Sensor Malfunction | - Steering column assembly (Torque sensor) - Power steering ECU |
Ignition switch ON again | ◦ | Refer to DTC C1528/12: Motor Rotation Angle Sensor Malfunction |
| C1531/25 | ECU Malfunction | - Power steering ECU | Ignition switch ON again | ◦ | Refer to DTC C1531/25: ECU Malfunction; DTC C1532/25: ECU Malfunction; DTC C1533/25: Temperature Sensor Circuit is Low or High; DTC C1534/25: EEPROM Malfunction |
| C1532/25 | ECU Malfunction | - Power steering ECU | Ignition switch ON again | ◦ | Refer to DTC C1531/25: ECU Malfunction; DTC C1532/25: ECU Malfunction; DTC C1533/25: Temperature Sensor Circuit is Low or High; DTC C1534/25: EEPROM Malfunction |
| C1533/25 | Temperature Sensor Circuit is Low or High | - Power steering ECU | Ignition switch ON again or after normal confirmation | ◦ | Refer to DTC C1531/25: ECU Malfunction; DTC C1532/25: ECU Malfunction; DTC C1533/25: Temperature Sensor Circuit is Low or High; DTC C1534/25: EEPROM Malfunction |
| C1534/25 | EEPROM Malfunction | - Power steering ECU | Ignition switch ON again | ◦ | Refer to DTC C1531/25: ECU Malfunction; DTC C1532/25: ECU Malfunction; DTC C1533/25: Temperature Sensor Circuit is Low or High; DTC C1534/25: EEPROM Malfunction |
| C1551/25 | IG Power Supply Voltage Malfunction | - ECU-IG1 fuse - IG power source circuit - Power steering ECU |
Ignition switch ON again or after normal confirmation | ◦ | Refer to DTC C1551/25: IG Power Supply Voltage Malfunction |
| C1552/22 | PIG Power Supply Voltage Malfunction | - PIG power source circuit - Power steering ECU |
Ignition switch ON again or after normal confirmation | ◦ | Refer to DTC C1552/22: PIG Power Supply Voltage Malfunction |
| C1554/23 | Power Supply Relay Failure | - PIG power source circuit - Power steering ECU |
Ignition switch ON again | ◦ | Refer to DTC C1554/23: Power Supply Relay Failure |
| C1555/25 | Motor Relay Welding Failure | - Steering column assembly - Power steering ECU |
Ignition switch ON again | ◦ | Refer to DTC C1524/24: Motor Terminal Voltage Malfunction; DTC C1555/25: Motor Relay Welding Failure |
| C1581/26 | Assist Map Number Un-Writing | - Power steering ECU | Assist map write or ignition switch ON again | ◦ | Refer to DTC C1581/26: Assist Map Number Un-Writing |
| U0073/49 | Control Module Communication Bus Off | - CAN communication system | Ignition switch ON again | ◦ | Refer to DTC U0073/49: Control Module Communication Bus Off; DTC U0100/41: Lost Communication with ECM/PCM "A"; DTC U0129/42: Lost Communication with Brake System Control Module |
| U0100/41 | Lost Communication with ECM/PCM "A" | - CAN communication system - ECM |
Ignition switch ON again or after normal confirmation | X | Refer to DTC U0073/49: Control Module Communication Bus Off; DTC U0100/41: Lost Communication with ECM/PCM "A"; DTC U0129/42: Lost Communication with Brake System Control Module |
| U0129/42 | Lost Communication with Brake System Control Module | - CAN communication system - Skid control ECU |
Ignition switch ON again or after normal confirmation | ◦ | Refer to DTC U0073/49: Control Module Communication Bus Off; DTC U0100/41: Lost Communication with ECM/PCM "A"; DTC U0129/42: Lost Communication with Brake System Control Module |
HINT:
◦: Warning light comes on
X: Warning light turns off (normal reset)