C1731 on 2003-2017 Lincoln Navigator (Base, Ultimate, L, L Ultimate, Select, Reserve) — Front Gate (Cut) Valve Solenoid Circuit
1 vehicles · 1 makes · $700-$2,400 repair
How to diagnose and fix C1731: most-reported vehicles
Ranked by owner reports. Each card gives the symptoms, how to confirm the cause, the fix, parts and sources for that vehicle.
Lincoln Navigator · 2003–2017
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C1731 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does C1731 mean?
C1731 stands for "Front Gate (Cut) Valve Solenoid Circuit." C1731 is a manufacturer-specific chassis code (documented on Toyota) indicating a fault in the front gate/cut valve solenoid circuit within the ABS/stability control hydraulic actuator. This solenoid valve helps the system isolate and regulate brake-line pressure for anti-lock braking and stability control. When the module detects an electrical fault in that solenoid circuit, it disables ABS/stability functions and sets the code; normal braking remains but assisted features are lost. Confirm against the factory manual as definitions vary by maker.
What are the most common causes of C1731?
The most common causes of C1731 are: Faulty gate/cut valve solenoid in the ABS actuator, Open or short in the solenoid control circuit, Damaged wiring or connector at the hydraulic unit, Low system voltage or poor ground, Internal ABS/stability control actuator fault, Corrosion or water intrusion at the connector. The specific cause varies by vehicle.
How much does it cost to fix C1731?
Repair costs for C1731 range from $700 to $2,400, depending on the vehicle and root cause.
Which vehicles are affected by C1731?
Au7o has documented C1731 across 1 vehicle models from 1 manufacturers: Lincoln.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.