C2002 on 2003-2017 Ford Expedition — Park Brake Control Module Fault
1 vehicles · 1 makes · $300-$1,500 repair
How to diagnose and fix C2002: 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.
Ford Expedition · 2003–2017
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.
Common Symptoms
- Rear of vehicle sagging or sitting noticeably lower
- Air suspension warning light or message on dash
- Compressor runs excessively or continuously
- Loud compressor noise from under the vehicle
- Harsh ride over bumps
- Vehicle leans to one side
- Hissing sound from air springs or compressor
- Vehicle bottoming out on speed bumps or driveway transitions
How to Fix
Most cost-effective permanent fix is an air-to-coil spring conversion kit from Strutmasters or Arnott ($300-500 for kit plus installation). If keeping air suspension: replace the compressor (Arnott P-2936 or Dorman 949-200, $200-400 part), both rear air springs ($150-250 each), and inspect all air lines for cracks. Always replace air springs in pairs. Compressor relay should also be checked - a corroded relay causes intermittent compressor operation. RepairPal estimates $666-724 for compressor replacement at a shop.
Sources for this issue (1)
Find C2002 by make
Browse every documented model and issue for your make.
C2002 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 C2002 mean?
C2002 stands for "Park Brake Control Module Fault." This is a chassis code indicating a fault with the Park Brake (electronic parking brake) control module. On vehicles with an electric parking brake, a dedicated module operates the motors or actuators that apply and release the brake. C2002 sets when that module detects an internal failure, a power/ground problem, or loses the ability to control the system reliably. You may see a parking-brake warning light and the electric park brake may not engage or release normally.
What are the most common causes of C2002?
The most common causes of C2002 are: Internal fault in the electronic parking brake control module, Low system voltage or weak battery, Corroded or loose power/ground connections to the module, Wiring harness damage between module and brake actuators, Faulty park brake actuator motor(s), Software/calibration fault requiring a module relearn or update, Failed module connector or blown related fuse. The specific cause varies by vehicle.
How much does it cost to fix C2002?
Repair costs for C2002 range from $300 to $1,500, depending on the vehicle and root cause.
Which vehicles are affected by C2002?
Au7o has documented C2002 across 1 vehicle models from 1 manufacturers: Ford.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.