POWER STEERING SYSTEM DIAGNOSTIC TROUBLE CODE CHART
Tech Tips
If any DTCs are displayed during the DTC check, inspect the circuit listed for those DTCs. For details of each DTC, refer to the page indicated in the DTC chart.
| DTC Code | Detection Item | Trouble Area | Normal Return | EPS Warning Light | See page |
|---|---|---|---|---|---|
| C1511/11 | Torque Sensor 1 Malfunction | - Steering column assembly | Ignition switch ON again | Comes on | |
| C1512/11 | Torque Sensor 2 Malfunction | - Steering column assembly | Ignition switch ON again | Comes on | |
| C1513/11 | Torque Sensor Deviation Excessive | - Steering column assembly | Ignition switch ON again | Comes on | |
| C1514/11 | Torque Sensor Power Supply Voltage Malfunction | - Steering column assembly | Ignition switch ON again | Comes on | |
| C1521/25 | Short in Motor Circuit | - Steering column assembly | Ignition switch ON again | Comes on | |
| C1524/24 | Motor Terminal Voltage Malfunction | - Steering column assembly | Ignition switch ON again | Comes on | |
| C1531/25 | ECU Malfunction | - Steering column assembly | Ignition switch ON again | Comes on | |
| C1532/25 | ECU Malfunction | - Steering column assembly | Ignition switch ON again | Comes on | |
| C1533/25 | Temperature Sensor Circuit is Low or High | - Steering column assembly | After normal condition | Does not come on | |
| C1534/25 | EEPROM Malfunction | - Steering column assembly | Ignition switch ON again | Does not come on*1 | |
| C1541/13 | Vehicle Speed Signal | - CAN communication system - Vehicle stability control system - Steering column assembly |
Ignition switch ON again | Comes on | |
| C1551/25 | IG Power Supply Voltage Malfunction | - ECU-IG No. 1 fuse - IG power source circuit - Steering column assembly |
After normal condition | Comes on | |
| C1552/22 | PIG Power Supply Voltage Malfunction | - EPS fuse - PIG power source circuit - Steering column assembly |
After normal condition | Comes on | |
| C1554/23 | Power Supply Relay Failure | - EPS fuse - Wire harness and connector - Steering column assembly |
Ignition switch ON again | Comes on | |
| C1555/25 | Motor Relay Welding Failure | - Steering column assembly | Ignition switch ON again | Comes on | |
| C1581/26 | Assist Map Number Un-Writing | - Assist map is not written - CAN communication system - SFI system (ECD system) - Vehicle stability control system - Steering column assembly |
Assist map written | Comes on | |
| C1582/26 | Assist Map Number Mismatch | - CAN communication system - Incorrect ECM - Incorrect Brake actuator assembly - Steering column assembly |
Ignition switch ON again | Does not come on |
|
| U0100/41 | Lost Communication with ECM/PCM "A" | - CAN communication system - ECM |
After normal condition |
Does not come on*2 |
|
| U0129/42 | Lost Communication with Brake System Control Module | - CAN communication system - Vehicle stability control system |
After normal condition |
Comes on | |
| U1103/92 | Lost Communication with Stop and Start Control Module | - CAN communication system - Engine stop and start ECU |
Ignition switch ON again | Does not come on*3 |
*1: The offset is set to the default value and control is continued. In this case, the warning light illuminates.
*2: 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.
*3: w/ Stop and Start System