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 MANUALSLEXUS2010RX 450H 3.5 BREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXPOWER ASSIST SYSTEMS DTCSPOWER STEERING SYSTEM (FROM 08/2009)
2010 Lexus RX 450h 3.5 B
Power Steering System (From 08/2009)
2010 Lexus RX 450h 3.5 BSECTION Power Steering System (From 08/2009)
POWER STEERING SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC Code | Description |
|---|---|
| C1511 | Torque Sensor Circuit Malfunction |
| C1512 | Torque Sensor Circuit Malfunction |
| C1513 | Torque Sensor Circuit Malfunction |
| C1514 | Torque Sensor Power Supply Abnormal |
| C1515 | Torque Sensor Zero Point Adjustment Undone |
| C1516 | Torque Sensor Zero Point Adjustment Incomplete |
| C1517 | Torque Hold Abnormal |
| C1521 | Motor Circuit Malfunction |
| C1522 | Motor Circuit Malfunction |
| C1523 | Motor Circuit Malfunction |
| C1524 | Motor Circuit Malfunction |
| C1525 | Rotation Angle Sensor Initialization Undone |
| C1526 | Rotation Angle Sensor Initialization Incomplete |
| C1528 | Motor Rotation Angle Sensor Malfunction |
| C1531 | ECU Malfunction |
| C1532 | ECU Malfunction |
| C1533 | ECU Malfunction |
| C1534 | ECU Malfunction |
| C1541 | Vehicle Speed Signal Malfunction |
| C1546 | Malfunction in HV ECU |
| C1551 | IG Power Supply Voltage Malfunction |
| C1552 | PIG Power Supply Voltage Malfunction |
| C1555 | Motor Relay Welding Failure |
| C1562 | DC / DC Converter PIG Power Supply Voltage |
| C1564 | Lost Communication with WDD Signal of DC / DC Converter |
| C1565 | Lost Communication with LDD/ASST Signal of DC / DC Converter |
| C1566 | Lost Communication with PSOK Signal of DC / DC Converter |
| C1568 | DC-DC Converter Malfunction |
| C1569 | Battery Power Supply Voltage Malfunction |
| C1581 | Assist Map Number Un-Writing |
| C1582 | Assist Map Number Mismatch |
| U0129 | Lost Communication with Brake System Control Module |
RENDER: 1.0x
NO RELATED
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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.