C1764 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C1764 – Abnormal Leveling Valve Oil Pressure


C1764 Possible Symptoms


Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)


C1764 Possible Causes


Faulty No. 1 height control valve,Clog in the fluid line,Suspension Control ECU


C1764 Description


The solenoid valve is located in the No. 1 height control valve. When the vehicle height is adjusted, the fluid line is opened or closed according to the signal from the suspension control ECU. If the height control pump and motor activates when the fluid line is closed due to the solenoid valve malfunctioning, the solenoid valve being stuck, or foreign matter clogging the fluid line, fluid pressure increases abnormally. When this problem with the fluid pressure is detected, DTC C1764 and/or DTC C1765 is stored.