Dealing with a Dodge Caliber, Jeep Compass, or Patriot that’s giving you headaches? If you’re experiencing baffling issues like random stalling, a persistent check engine light, a complete no-start condition, or communication failures with your scan tool, the problem often points directly to a failing Engine Control Module (ECM). As a technician with over two decades of experience, I’ve seen how a faulty ECM can turn a reliable vehicle into a source of constant frustration. This isn’t just an inconvenience; it’s a critical failure that affects performance, fuel economy, and safety.
This is the definitive solution for your vehicle. We offer a professionally prepared 2007-2010 Caliber Engine Computer that eliminates the guesswork and costly dealership visits. The biggest hurdle in replacing an ECM has always been the programming—it typically requires specialized tools and software. We handle that for you. Simply provide your vehicle’s VIN and mileage during checkout, and we will flash the module specifically for your car. It arrives at your door ready for a true plug-and-play installation, restoring the precise communication between your engine, transmission, and other vital systems.
From the Diagnostic Bay: Solving a Stubborn No-Start
I remember a 2009 Jeep Patriot that came into the shop on a tow truck. The owner had already replaced the battery, alternator, and starter, but it would still only crank without firing up. His local mechanic was stumped. When I connected my diagnostic scanner, it couldn’t establish communication with the ECM—a classic sign of internal failure. We confirmed power and ground at the ECM connector, which told us the module itself was the culprit. Instead of a complicated and expensive trip to the dealer, we sourced a pre-programmed module just like this one. Within 30 minutes of its arrival, the new ECM was installed, the vehicle started on the first try, and all systems were back to normal. This simple swap saved the customer hundreds in diagnostic fees and dealership programming costs.
Common Signs of a Failing Engine Computer
If your vehicle is exhibiting any of these symptoms, a faulty ECM is a highly likely cause. Replacing it with this pre-programmed unit can resolve these issues and restore your vehicle’s reliability.
- ✔ Check Engine Light is on with internal processor fault codes (e.g., P0601, P0606).
- ✔ Vehicle will crank but refuses to start.
- ✔ Intermittent stalling or rough idling for no apparent reason.
- ✔ Noticeable drop in fuel efficiency.
- ✔ Communication errors with diagnostic scan tools (e.g., U0100).
- ✔ Erratic transmission shifting or other electronic module failures.
- ✔ Failure to pass state emissions testing.
DIY Installation: A Straightforward Guide
Replacing your 2007-2010 Caliber Engine Computer is a job most DIYers with basic tools can handle in under an hour. No complex programming is needed—just install and drive.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow all systems to discharge.
- Locate the ECM: On most Caliber, Compass, and Patriot models, the ECM is located in the engine bay, typically mounted to the firewall or inner fender.
- Disconnect Connectors: Carefully unclip the wiring harness connectors from the old ECM. They have locking tabs, so be gentle to avoid damage.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket. Keep the hardware as you will reuse it.
- Install the New ECM: Mount your new, pre-programmed ECM onto the bracket and secure it with the original hardware.
- Reconnect Everything: Firmly plug the wiring harness connectors into the new module until they click into place. Reconnect the negative battery terminal.
- Final Step: Start the vehicle. It may take a moment to idle smoothly as it completes its internal checks. Your check engine light should be off, and the vehicle restored to normal operation.
Verified Fitment for Your Dodge or Jeep
This Engine Control Module is a direct-fit replacement for a range of vehicles and part numbers. Please verify your vehicle and engine options below to ensure compatibility. This unit replaces part number 68028201AC and many others.
2007-2008: All Engines
2009: 1.8L, 2.0L (Gasoline), 2.4L (Engine Opt ED3)
2010: 2.0L, 2.4L
JEEP PATRIOT
2007-2010: All Engines
JEEP COMPASS
2007-2010: All Engines
This module is compatible with the following part numbers: 05150471AA, 05150523AA, 68043260AA, 68043260AB, 04692101AD, 04692101AE, 04692101AF, 68043260AC, 68043260AD, 68043261AC, 68043261AA, 68043261AB, 68070011AA, 68071022AA, 05033359AJ, 05187817AF, 68000107AF, 68026147AA, 68026147AC, 68028201AA, 68028201AC, 68028205AB, 68044228AA.
Frequently Asked Questions
Is this ECM really plug-and-play?
Yes. We program the module to your vehicle’s specific VIN and mileage before shipping. This ensures it communicates correctly with your car’s security system and other modules right out of the box, with no additional programming required.
Where do I find my VIN?
Your 17-digit Vehicle Identification Number (VIN) can be found on your vehicle’s registration, insurance card, or on the driver’s side dashboard visible through the windshield.
Do I need any special tools for installation?
No special tools are needed. Basic hand tools like a socket set and ratchet are all that’s required to unbolt the old module and install the new one.
Will this fix my check engine light?
If the check engine light is caused by an internal ECM failure (like DTC P0601), this replacement will solve the problem. However, if the light is on for another reason (e.g., a bad oxygen sensor), that issue will still need to be addressed separately.
What if my original part number isn’t 68028201AC?
That’s okay. This module is a compatible replacement for a long list of part numbers. Please check the compatibility list in the description to ensure your original part number is included.