C1734 LEXUS – Rear Leveling Valve Solenoid Circuit

C1734 LEXUS Possible Symptoms

Active Height Control (AHC) Suspension Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)

C1734 LEXUS Possible Causes

Faulty Rear Leveling Valve Solenoid,Rear Leveling Valve Solenoid harness is open or shorted,Rear Leveling Valve Solenoid circuit poor electrical connection,Faulty Suspension Electronic Control Unit (ECU)

C1734 LEXUS Description

The Control Valve Assembly consist of each front and rear leveling valve and gate valve and performs the height control and connecting and disconnecting the fluid line of the right and left shock absorber by operating the solenoid valve ON and OFF with the control signal from the Electronic Control Unit (ECU).