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.
2007 Lexus LS 460LFACTORY OEM SERVICE PROCEDURE
Power Steering
- Power Steering System
- Precaution
- Parts Location
- System Diagram
- System Description
- How To Proceed With Troubleshooting
- Calibration
- Problem Symptoms Table
- Terminals Of Ecu
- Diagnosis System
- DTC Check / Clear
- Freeze Frame Data
- Fail-Safe Chart
- Data List / Active Test
- Diagnostic Trouble Code Chart
- On-Vehicle Inspection
- DTC C1511 Torque Sensor Circuit Malfunction; DTC C1512 Torque Sensor Circuit Malfunction; DTC C1513 Torque Sensor Circuit Malfunction
- DTC C1515 Torque Sensor Zero Point Adjustment Undone; DTC C1525 Rotation Angle Sensor Initialization Undone
- DTC C1516 Torque Sensor Zero Point Adjustment Incomplete; DTC C1526 Rotation Angle Sensor Initialization Incomplete
- DTC C1521 Motor Circuit Malfunction; DTC C1522 Motor Circuit Malfunction; DTC C1523 Motor Circuit Malfunction; DTC C1524 Motor Circuit Malfunction; DTC C1555 Motor Relay Welding Failure
- DTC C1528 Motor Rotation Angle Sensor Malfunction
- DTC C1531 ECU Malfunction; DTC C1532 ECU Malfunction; DTC C1533 ECU Malfunction; DTC C1534 ECU Malfunction
- DTC C1541 Vehicle Speed Signal Malfunction
- DTC C1552 PIG Power Supply Voltage Malfunction
- DTC C1563 DC / DC Converter IG Power Supply Voltage
- DTC C1564 Lost Communication with WDD Signal of DC / DC Converter; DTC C1565 Lost Communication with LDD/ASST Signal of DC / DC Converter
- DTC C1567 Lost Communication between EPS ECU and VGRS ECU
- DTC C1568 DC-DC Converter Malfunction
- DTC C1569 Battery Power Supply Voltage Malfunction
- DTC C1581 Assist Map Number Un-Writing
- DTC U0100 Lost Communication with ECM / PCM "A"; DTC U0129 Lost Communication with Brake System Control Module; DTC U0130 Lost Communication with Steering Effort Control Module; DTC U1104 Lost Communication with Driving Support ECU; DTC U1105 Lost Communication with Parking Assist ECU
- PS Warning Light Remains ON
- STEERING GEAR (w/ VGRS)
- STEERING GEAR (w/o VGRS)
- Power Steering Ecu
- Dc / Dc Converter
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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