C1727 on Ford
EPS Motor Circuit Malfunction
C1727 on Ford vehicles indicates eps motor circuit malfunction. Au7o has documented this code across 1 Ford model — most commonly on Expedition. C1727 is a steering/chassis code indicating a malfunction in the Electric Power Steering (EPS) assist motor circuit. This motor provides the actual steering boost, and the EPS module monitors its electrical circuit for proper operation. When it detects an open, short, over-current, or otherwise out-of-spec condition in the motor circuit, it sets this code. It generally causes loss or reduction of power-steering assist (heavy, hard-to-turn steering) and an EPS/steering warning light, though the vehicle can still be steered manually with more effort. Typical repair costs on Ford range from $300 to $1,500, depending on the specific model and root cause.
Common Causes of C1727
- •Failed EPS assist motor
- •Open, shorted, or high-resistance wiring to the motor
- •Corroded or loose motor power/connector terminals
- •Low system voltage or poor ground to the EPS unit
- •Internal EPS control module driver fault
- •Overheated/over-current condition from excessive load
- •Damaged harness near the steering column or rack
C1727 on Ford by Model
Ford Expedition(1 issue)
- Air Suspension Compressor Failure and Rear Sag2003-2017
The 2003-2017 Ford Expedition with optional air suspension (standard on Eddie Bauer, King Ranch, Platinum, and EL/MAX trims) suffers from air suspension compressor failure, air spring leaks, and ride height sensor malfunctions. The compressor, located under the vehicle, is exposed to road debris, salt, and moisture which degrades the motor and valves. When air springs develop leaks, the compressor runs continuously trying to maintain ride height, leading to premature burnout. RepairPal estimates compressor replacement between $666 and $724, though dealer pricing can reach $1,200. NHTSA has received hundreds of complaints regarding air suspension failures. Strutmasters.com notes that 2007-2011 Expedition and Navigator share the same air suspension system and failure patterns. Many owners opt for air-to-coil spring conversion kits as a permanent, lower-cost solution.
Looking for C1727 on a different make?
View C1727 across all makes →Frequently Asked Questions
What does C1727 mean on Ford?▼
C1727 stands for "EPS Motor Circuit Malfunction." C1727 is a steering/chassis code indicating a malfunction in the Electric Power Steering (EPS) assist motor circuit. This motor provides the actual steering boost, and the EPS module monitors its electrical circuit for proper operation. When it detects an open, short, over-current, or otherwise out-of-spec condition in the motor circuit, it sets this code. It generally causes loss or reduction of power-steering assist (heavy, hard-to-turn steering) and an EPS/steering warning light, though the vehicle can still be steered manually with more effort. On Ford specifically, this code is documented across 1 model.
What causes C1727 on Ford vehicles?▼
Common causes on Ford: Failed EPS assist motor, Open, shorted, or high-resistance wiring to the motor, Corroded or loose motor power/connector terminals, Low system voltage or poor ground to the EPS unit, Internal EPS control module driver fault. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix C1727 on a Ford?▼
Repair costs on Ford range from $300 to $1,500, depending on the specific model and root cause.
Which Ford models have C1727 documented?▼
Au7o has documented C1727 on 1 Ford model: Expedition.