Fail-Safe Chart
If a problem occurs in the power steering system, the PS warning light will come on in the combination meter and steering power assistance will be stopped, fixed at a particular point, or decreased simultaneously to protect the system
FAIL-SAFE CHART
| DTC No | Malfunction | Fail-safe |
|---|---|---|
| C1511 | Torque Sensor Circuit Malfunction | Power assistance stops |
| C1512 | ||
| C1513 | ||
| C1521 | Motor Circuit Malfunction | |
| C1522 | ||
| C1523 | ||
| C1524 | ||
| C1528 | Motor Rotation Angle Sensor Malfunction | |
| C1531 | ECU Malfunction | |
| C1532 | ||
| C1552 | ||
| C1555 | Motor Relay Welding Failure | |
| C1564 | Lost Communication With Power Steering Converter | Power assistance is limited |
| C1546 | Hybrid Control System Malfunction | Power assistance is limited/stopped |
| C1562 | Power Supply from HV Battery Malfunction | |
| C1568 | Power Steering Converter Malfunction | |
| C1569 | ECU Malfunction | |
| C1533 | ECU Malfunction | System overheat prevention control continues without using the substrate temperature sensor |
| C1534 | ECU Malfunction | Torque sensor zero point and rotation angle sensor calibration values are set to the default values |
| C1541 | Vehicle Speed Signal Malfunction | Amount of power assistance is fixed for a speed of 100 km/h (62 mph) |
| U0129 | Lost Communication With Anti-lock Brake System (ABS) Control Module | |
| C1566 | PSOK Signal Malfunction | Continuous Malfunction is detected during power assistance Stops Malfunction is detected immediately after power switch is turned ON (READY) |
HINT
- With the vehicle stopped or driving very slowly, if the steering wheel is turned repeatedly or turned to a lock position and driven for an extended period of time, the power assistance amount is decreased to prevent overheating of the motor and ECU. If this occurs, turn the power switch ON (READY) and do not turn the steering wheel for approximately 10 minutes to return the power assistance to normal.
- If the auxiliary battery has not been recharged enough or the voltage drops temporarily, the power assistance amount may be decreased and the P/S warning light may be illuminated. If this occurs, the power assistance returns to normal when the auxiliary battery returns to normal