If your Jeep Compass, Patriot, or Dodge Caliber is giving you headaches with unpredictable stalling, a persistent check engine light, or a complete no-start condition, the root cause is often a failing Engine Control Module (ECM). As a technician with over two decades of experience, I’ve seen firsthand how a faulty computer can mimic a dozen other problems, leading to wasted time and money on incorrect repairs. This isn’t just a part; it’s the central command center for your engine’s performance, fuel efficiency, and reliability.
We take the guesswork and frustration out of the equation. This replacement engine computer, part number 68028201AC, arrives at your door fully programmed to your vehicle’s specific VIN and mileage. This means no expensive trips to the dealership for flashing, no special scan tools required, and no hidden fees. It is a true plug-and-play solution designed to get you back on the road with confidence. By restoring the precise communication between your engine’s sensors and systems, this module corrects issues with fuel delivery, ignition timing, and transmission shifting, bringing your vehicle back to its factory-spec operation.
Diagnosing a Faulty ECM: Common Symptoms
- âś” Check Engine Light is on with internal processor codes like P0601, P0606, or U0100.
- âś” The engine cranks but refuses to start for no apparent reason.
- âś” Unexplained stalling, especially after the vehicle has warmed up.
- âś” Noticeable drop in fuel economy and poor engine performance.
- âś” Harsh or erratic automatic transmission shifting.
- âś” Communication issues with diagnostic scan tools.
Case Study: A Tricky Diagnosis
A 2009 Jeep Patriot came into the shop with a complaint of intermittent stalling at stoplights. The owner had already replaced the fuel pump and spark plugs with no success. My initial scan showed no hard codes, just a history of random misfires. Instead of just throwing more parts at it, I monitored the live data stream from the ECM. I noticed the 5-volt reference signal to the throttle position sensor would momentarily drop out right before a stall. This pointed directly to an internal failure in the ECM’s voltage regulator. We installed one of our pre-programmed units, and the problem was solved instantly. It’s a classic example of how a failing 2007-2010 Compass Engine Computer can send you on a wild goose chase.
A Straightforward Guide to Installation
Installing your new 2007-2010 Compass Engine Computer is a simple process that most DIYers can complete in under an hour with basic hand tools. Our pre-programming service makes it a direct swap.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes for the system capacitors to discharge.
- Locate the ECM: On these models, the engine computer is typically found in the engine bay, mounted against the firewall or an inner fender.
- Disconnect the Wiring: Carefully release the locking tabs on the main electrical connectors and pull them straight off the module. Inspect the connectors for any corrosion or damage.
- Remove the Old Unit: Unbolt the old ECM from its mounting bracket. There are usually three or four bolts holding it in place.
- Install the New ECM: Mount your new, pre-programmed computer in the same location and securely fasten the bolts.
- Reconnect and Finalize: Plug the wiring harnesses back into the new module until they click firmly into place. Reconnect the negative battery terminal. The vehicle is now ready to start.
Verified Vehicle Compatibility
This module is a direct-fit replacement for a wide range of vehicles and part numbers, ensuring a perfect match for your repair. Please verify your model and options below. This unit replaces part numbers including: 05150471AA, 05150523AA, 68043260AA, 68043260AB, 68028201AC, and many more.
PATRIOT: 2007-2010 (Electronic Control Module)
CALIBER: 2007-2008 (Electronic Control Module)
CALIBER: 2009 (1.8L, 2.0L gasoline, 2.4L engine opt ED3)
CALIBER: 2010 (2.0L, 2.4L)
Frequently Asked Questions
Frequently Asked Questions
Do I need to do any programming or flashing myself?
No. We handle all the programming before we ship the part. You just need to provide your vehicle’s VIN during checkout. The module will arrive ready for installation, making it a true plug-and-play fix.
Is this part compatible with my existing keys?
Yes. Our programming service ensures the module is synchronized with your vehicle’s immobilizer system, so your original keys will work without any additional steps.
What happens if I don’t provide a VIN?
Providing your VIN is essential for the programming process. It allows us to load the correct software and security information for your specific vehicle. We cannot ship the product without it.
Will this fix my check engine light?
If the check engine light is caused by an internal ECM failure (like codes P0601 or P0606), this replacement will resolve the issue. However, if the light is on due to a faulty sensor or other component, that separate issue will still need to be addressed.
Is this a used part?
This is a professionally restored and tested OEM component. Each unit undergoes rigorous testing on a specialized bench to ensure all circuits and processors are functioning to factory specifications before being programmed and shipped.