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
Suspension Control Systems
- Suspension Control System
- Air Suspension System
- Precaution
- Parts Location
- System Diagram
- System Description
- How To Proceed With Troubleshooting
- Operation Check
- Initialization
- Test Mode Procedure
- Problem Symptoms Table
- Terminals Of Ecu
- Diagnosis System
- DTC Check / Clear
- Fail-Safe Chart
- Data List / Active Test
- Diagnostic Trouble Code Chart
- DTC C1711 Front Height Control Sensor RH Circuit Malfunction; DTC C1712 Front Height Control Sensor LH Circuit Malfunction; DTC C1713 Rear Height Control Sensor RH Circuit Malfunction; DTC C1714 Rear Height Control Sensor LH Circuit Malfunction
- DTC C1715 Front Acceleration Sensor RH Malfunction; DTC C1716 Front Acceleration Sensor LH Malfunction; DTC C1717 Rear Acceleration Sensor Malfunction; DTC C1796 Front Acceleration Sensor RH Malfunction (Test Mode DTC); DTC C1797 Front Acceleration Sensor LH Malfunction (Test Mode DTC); DTC C1798 Rear Acceleration Sensor Malfunction (Test Mode DTC)
- DTC C1731 Front Damping Force Control Actuator RH Circuit Malfunction; DTC C1732 Front Damping Force Control Actuator LH Circuit Malfunction; DTC C1733 Rear Damping Force Control Actuator RH Circuit Malfunction; DTC C1734 Rear Damping Force Control Actuator LH Circuit Malfunction
- DTC C1741 Front Height Control Solenoid Valve RH Circuit Malfunction; DTC C1742 Front Height Control Solenoid Valve LH Circuit Malfunction
- DTC C1743 Rear Height Control Solenoid Valve RH Circuit Malfunction; DTC C1744 Rear Height Control Solenoid Valve LH Circuit Malfunction
- DTC C1745 Exhaust Solenoid Valve Circuit Malfunction
- DTC C1751 Compressor Relay Coil Malfunction
- DTC C1752 Height Control Compressor Motor Circuit Malfunction
- DTC C1761 Continuous Electric Current to Height Control Compressor Motor
- DTC C1762 Continuous Electric Current to Exhaust Solenoid
- DTC C1781 Suspension Control ECU Malfunction
- DTC C1782 Power Source Voltage Malfunction
- DTC C1783 Speed Signal Communication Error
- DTC C1784 Steering Angle Sensor Communication Error
- DTC C1785 Steering Control ECU Communication Error
- DTC C1787 Forward/Rearward/Sideways G Sensor Communication Error; DTC C1788 Yaw Rate Sensor Communication Error
- DTC U0100/71 Lost Communication with ECM / PCM "A; DTC U0101/71 Lost Communication with TCM; DTC U0122/71 Lost Communication with Vehicle Dynamics Control Module; DTC U0124 Lost Communication with Lateral Acceleration Sensor Module; DTC U0126/71 Lost Communication with Steering Angle Sensor Module; DTC U0130/71 Lost Communication with Steering Effort Control Module; DTC U0132 Lost Communication with Suspension Control ECU
- Indicator Circuit
- ECU Power Source Circuit
- TC and CG Terminal Circuit
- TS and CG Terminal Circuit
- Height Control Compressor
- HEIGHT CONTROL SENSOR (for Front LH)
- HEIGHT CONTROL SENSOR (for Rear LH)
- HEIGHT CONTROL VALVE (for Front Side)
- HEIGHT CONTROL VALVE (for Rear Side)
- Suspension Control Ecu
- Suspension Control Relay
- Front Acceleration Sensor
- Rear Acceleration Sensor
- ABSORBER CONTROL ACTUATOR (for Front Side)
- ABSORBER CONTROL ACTUATOR (for Rear Side)
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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