Front Gate Valve Solenoid Circuit
Table of contents
C1731 TOYOTA Possible Causes
- Faulty Front Gate Valve Solenoid
- Front Gate Valve Solenoid harness is open or shorted
- Front Gate Valve Solenoid circuit poor electrical connection
- Faulty Suspension Electronic Control Unit (ECU)
How do I fix code C1731 TOYOTA?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the C1731 TOYOTA code
The cost of diagnosing the C1731 TOYOTA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Active Height Control (AHC) Suspension Warning Light ON
- Engine Light ON (or Service Engine Soon Warning Light)
C1731 TOYOTA 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).