Restore Your Vehicle’s Core Performance and Reliability
If you’re dealing with frustrating issues like engine stalling, a persistent check engine light, or a vehicle that simply won’t start, 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 ECM can create a cascade of problems that are difficult to diagnose. This module is the brain of your vehicle, managing everything from fuel delivery and ignition timing to emissions and transmission shifting. When it fails, your vehicle’s performance and dependability suffer dramatically.
This replacement engine computer is the definitive solution for your 2007-2010 Jeep Compass, Patriot, or Dodge Caliber. We take the guesswork and hassle out of the repair process. Before shipping, we program the module with your vehicle’s specific Vehicle Identification Number (VIN) and current mileage. This means it arrives at your doorstep completely ready for a true plug-and-play installation. You can bypass the expensive dealership visit for programming, saving you both time and hundreds of dollars.
From the Diagnostic Bay: The Intermittent No-Start
A customer brought in a 2009 Jeep Patriot that would randomly refuse to start. No crank, no click—nothing. Other times, it would start and run perfectly for days. They had already replaced the battery and starter to no avail. After hooking up my diagnostic scanner, I noticed intermittent communication loss with the PCM (Powertrain Control Module). The tell-tale sign was the U0100 code. After checking the wiring harness and connectors for corrosion or damage—a common issue on these platforms—I determined the internal circuitry of the original PCM was failing. We installed one of these pre-programmed units, and the problem was solved instantly. The customer was back on the road with a reliable vehicle, avoiding a costly and lengthy dealer diagnosis.
Is Your Vehicle Showing These Symptoms?
- ✔ Check Engine Light is on with codes like P0601 (Internal Control Module Memory Check Sum Error) or P0606 (ECM/PCM Processor Fault).
- ✔ The engine cranks but refuses to start.
- ✔ Intermittent stalling or rough idling, especially when warm.
- ✔ A noticeable decrease in fuel economy.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Loss of communication with the module (U-codes).
- ✔ The cooling fans run constantly, even when the engine is cold.
A Straightforward Guide to Installation
- ✔ 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 of these models, the ECM is located in the engine bay, typically mounted to the firewall or an inner fender well.
- ✔ Disconnect the Connectors: Carefully unclip the wiring harness connectors from the old module. They usually have a locking tab that needs to be released. Avoid pulling on the wires themselves.
- ✔ Remove the Old Module: Unbolt the old ECM from its mounting bracket. It’s usually held in place by a few 8mm or 10mm bolts.
- ✔ Install the New Module: Mount your new, pre-programmed ECM in the same location and secure it with the bolts.
- ✔ 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 engine. The vehicle will recognize the new, programmed module, and you’ll be ready to go. No further programming is needed.
Verified Vehicle Compatibility
This module is a direct-fit replacement for a wide range of vehicles and part numbers. We guarantee compatibility if your vehicle is listed below. The part you receive will be fully programmed for your specific VIN and will function correctly in place of any of the following original 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.
- JEEP COMPASS: 2007-2010 (Electronic Control Module)
- JEEP PATRIOT: 2007-2010 (Electronic Control Module)
- DODGE CALIBER: 2007-2008 (Electronic Control Module)
- DODGE CALIBER: 2009 (Electronic Control Module; 1.8L, 2.0L gasoline, or 2.4L with engine opt ED3)
- DODGE CALIBER: 2010 (Electronic Control Module; 2.0L or 2.4L)
By choosing this pre-programmed 2007-2010 Compass Engine Computer, you are not just buying a part; you are getting a complete, hassle-free solution that restores your vehicle’s function and your peace of mind.
Do I need to do any programming after I install this?
Do I need to do any programming after I install this?
No. This engine computer arrives fully programmed to your vehicle’s VIN and mileage. It is a true plug-and-play solution. Simply install it, and you’re ready to drive. No dealer visit is required.
Where do I find my VIN?
You can find your 17-digit Vehicle Identification Number (VIN) on your vehicle’s registration, insurance card, or on a plate on the driver’s side dashboard visible through the windshield.
Will this fix my specific problem?
This module corrects issues directly caused by a failing ECM, such as certain no-start conditions, stalling, and specific diagnostic trouble codes (DTCs). While it is a common point of failure, we always recommend a proper diagnosis by a qualified mechanic to ensure you are replacing the correct part.
Is this compatible with my 2009 Dodge Caliber 2.4L?
Yes, it is compatible with the 2009 Dodge Caliber 2.4L, specifically for vehicles with the engine option code ED3. Please verify your vehicle’s options or provide your VIN so we can ensure perfect compatibility.
What if my original part number isn’t on your list?
The part numbers listed are the most common, but there may be others. Please contact us with your vehicle’s VIN, and our experts will verify compatibility for you before you order.