Fail-Safe Chart
If a problem occurs in the power steering system, the P/S warning light will come on in the combination meter and power steering assist will be stopped, fixed at a particular point, or decreased simultaneously to protect the system.
POWER STEERING SYSTEM
| DTC No. | Malfunction | Fail-safe |
|---|---|---|
| C1511 | Torque sensor malfunction | Power assist stops |
| C1512 | ||
| C1513 | ||
| C1514 | ||
| C1515 | ||
| C1516 | ||
| C1517 | ||
| C1521 | Motor circuit malfunction | |
| C1522 | ||
| C1523 | ||
| C1524 | ||
| C1525 | Motor rotation angle sensor malfunction | |
| C1526 | ||
| C1528 | ||
| C1531 | ECU malfunction | |
| C1532 | ||
| C1533 | Assist force restricted | |
| C1534 | ||
| C1541 | Skid control malfunction | Amount of power assist is locked at 100 km/h (62 mph) level |
| C1551 | IG power source voltage error | Power assist stops |
| C1552 | PIG power source voltage error | |
| C1554 | Power source relay malfunction | |
| C1555 | Motor relay malfunction | |
| C1581 | ECU malfunction | |
| U0100 | ECM communication malfunction | |
| U0129 | Skid control ECU communication error | Amount of power assist is locked at 100 km/h (62 mph) level |
HINT:
The amount of power assist may be decreased to prevent the motor and ECUs from overheating if the steering wheel is continuously turned when the vehicle is either stopped or driven at a low speed, or if the steering wheel is kept at either full lock position for a long time. In such cases, the amount of power assist returns to normal if the steering wheel is not turned for approximately 10 minutes with the engine idling.