C1731 on Lincoln
Front Gate (Cut) Valve Solenoid Circuit
C1731 on Lincoln vehicles indicates front gate (cut) valve solenoid circuit. Au7o has documented this code across 1 Lincoln model — most commonly on Navigator. 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. Typical repair costs on Lincoln range from $700 to $2,400, depending on the specific model and root cause.
Common Causes of C1731
- •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
C1731 on Lincoln by Model
Lincoln Navigator(1 issue)
- Navigator Rear Air Suspension Bag/Compressor Failure2003-2017
2003-2017 Navigators with the optional/standard rear air suspension (and the 2003+ Expedition with the same system) develop air-bag leaks at the bag-to-piston seal as the bag rubber ages and cracks. Symptoms: rear of vehicle sagging overnight, compressor running constantly, error message "Check Air Suspension." Eventually the compressor burns out from constant duty.
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View C1731 across all makes →Frequently Asked Questions
What does C1731 mean on Lincoln?▼
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. On Lincoln specifically, this code is documented across 1 model.
What causes C1731 on Lincoln vehicles?▼
Common causes on Lincoln: 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. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix C1731 on a Lincoln?▼
Repair costs on Lincoln range from $700 to $2,400, depending on the specific model and root cause.
Which Lincoln models have C1731 documented?▼
Au7o has documented C1731 on 1 Lincoln model: Navigator.