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.
2008 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
- Data List/Active Test
- Diagnostic Trouble Code Table
- DTC C1711, C1712, C1713, C1714: Front Height Control Sensor RH Circuit Malfunction; Front Height Control Sensor LH Circuit Malfunction; Rear Height Control Sensor RH Circuit Malfunction; Rear Height Control Sensor LH Circuit Malfunction
- DTC C1715, C1716, C1717, C1796, C1797, C1798: Front Acceleration Sensor RH Malfunction; Front Acceleration Sensor LH Malfunction; Rear Acceleration Sensor Malfunction; Front Acceleration Sensor RH Malfunction (Test Mode DTC); Front Acceleration Sensor LH Malfunction (Test Mode DTC); Rear Acceleration Sensor Malfunction (Test Mode DTC)
- DTC C1731, C1732, C1733, C1734: Front Damping Force Control Actuator RH Circuit Malfunction; Front Damping Force Control Actuator LH Circuit Malfunction; Rear Damping Force Control Actuator RH Circuit Malfunction; Rear Damping Force Control Actuator LH Circuit Malfunction
- DTC C1741, C1742: Front Height Control Solenoid Valve RH Circuit Malfunction; Front Height Control Solenoid Valve LH Circuit Malfunction
- DTC C1743, C1744: Rear Height Control Solenoid Valve RH Circuit Malfunction; 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, C1788: Forward/Rearward/Sideways G Sensor Communication Error; Yaw Rate Sensor Communication Error
- DTC U0100, U0101, U0122, U0124, U0126, U0130, U0132: Lost Communication with ECM/PCM "A"; Lost Communication with TCM; Lost Communication with Vehicle Dynamics Control Module; Lost Communication with Lateral Acceleration Sensor Module; Lost Communication with Steering Angle Sensor Module; Lost Communication with Steering Effort Control Module; Lost Communication with Suspension Control ECU
- Indicator Circuit
- ECU Power Source 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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