Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2009YARIS S, 4D HATCHBACKREPAIR AND DIAGNOSIS (SINGLE PAGE)GENERAL INFORMATIONDTC INDEXPOWER STEERING DTCS
2009 Toyota Yaris S, 4D Hatchback
Power Steering DTCS
2009 Toyota Yaris S, 4D HatchbackSECTION Power Steering DTCS
POWER STEERING DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| C1511 | Torque Sensor 1 Malfunction |
| C1512 | Torque Sensor Circuit Malfunction |
| C1513 | Torque Sensor Circuit Malfunction |
| C1514 | Torque Sensor Power Source Circuit Malfunction |
| C1515 | Torque Sensor Zero Point Adjustment is not Initialized |
| C1516 | Torque Sensor Zero Point Adjustment Incomplete |
| C1517 | Torque Sensor Hold Malfunction |
| C1524 | Motor Circuit Malfunction |
| C1531 | EPS ECU Circuit Malfunction |
| C1532 | EPS ECU Circuit Malfunction |
| C1533 | EPS ECU Circuit Malfunction |
| C1534 | EPS ECU Circuit Malfunction |
| C1535 | Steering Wheel Location Data Error |
| C1541 | Speed Sensor Malfunction |
| C1542 | Speed Sensor Malfunction |
| C1551 | IG Power Source Circuit Malfunction |
| C1552 | PIG Power Source Circuit |
| C1553 | When Resetting Voltage, Vehicle is Being Driven |
| C1554 | EPS Relay Circuit |
| C1555 | EPS Motor Relay Circuit |
| C1571 | Speed Sensor Malfunction (Test Mode DTC) |
| C1581 | Assist Map Un-Writing |
| U0100 | Lost Communication with ECM/PCM "A" |
| U0129 | Lost Communication with Brake System Control Module |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.