If you’re dealing with frustrating and unpredictable issues in your Jeep Compass, Patriot, or Dodge Caliber, the root cause is often the very component that controls everything: the Engine Control Module (ECM). A failing ECM can turn a reliable vehicle into a source of constant stress, with problems like random stalling, a persistent check engine light, or a complete no-start condition. I’ve seen it hundreds of times in the shop—a vehicle gets towed in with a laundry list of confusing symptoms that all trace back to a faulty engine computer. This isn’t just an inconvenience; it’s a critical failure that sidelines your vehicle.
We offer a dependable and straightforward solution. This Engine Control Computer, part number 05187817AF, is the definitive fix for these widespread issues. Forget about expensive dealership visits, towing fees, and the headache of programming a new module. We handle the complex part for you. Before we ship it, our technicians will program the unit with your vehicle’s specific Vehicle Identification Number (VIN) and current mileage. The result is a true plug-and-play component that restores your vehicle’s core functions the moment it’s installed.
From the Diagnostic Bay: The Intermittent Stall Case
A customer brought in their 2009 Jeep Patriot that had developed a scary habit of stalling at stoplights. There were no consistent trouble codes, just a random U0100 (Lost Communication with ECM) that would pop up occasionally. We checked the wiring, grounds, and power feeds to the ECM—everything looked perfect. After hours of diagnostics, we suspected an internal failure in the original computer. We ordered a pre-programmed unit like this one, and the installation took less than 30 minutes. The stalling completely vanished. The customer saved hundreds on diagnostic labor and avoided a costly trip to the dealer. This is the power of a reliable, pre-programmed part.
Common Signs of a Failing Engine Computer
If your vehicle is experiencing any of the following, a faulty ECM is a likely culprit. Replacing your failing module with this tested unit can resolve these problems:
- ✔ Check Engine Light is on with no clear cause
- ✔ Stalling or cutting out while driving
- ✔ Complete no-start condition where the engine cranks but won’t fire
- ✔ Poor or erratic automatic transmission shifting
- ✔ Drastic decrease in fuel economy
- ✔ Communication error codes, such as U0100
- ✔ Internal module failure codes, like P0601, P0605, or P0606
- ✔ Misfire codes (e.g., P0300) that aren’t caused by plugs, coils, or injectors
A Straightforward Guide to Installation
Installing your pre-programmed 2007-2010 Compass Engine Computer is a job most DIYers can handle in their own driveway. No special programming tools are needed.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait 10-15 minutes for the system capacitors to discharge.
- Locate the ECM: On most of these models, the ECM is located in the engine bay, typically mounted to the firewall or inner fender. It’s a metal box with several large electrical connectors.
- Disconnect the Connectors: Carefully unclip and remove the wiring harness connectors from the old ECM. Inspect them for any corrosion or damage.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket and remove it from the vehicle.
- Install the New Module: Mount your new, pre-programmed ECM in the same location and secure it with the original bolts.
- Reconnect Everything: Plug the wiring harness connectors firmly into the new ECM. Reconnect the negative battery terminal.
- Final Step: Turn the key to the ‘ON’ position (without starting) for 10 seconds to allow the systems to initialize, then start your engine. Your vehicle is ready to drive!
Verified Vehicle Compatibility
This module is a direct-fit replacement for a range of Chrysler, Dodge, and Jeep vehicles. It is guaranteed to be compatible with the following models and part numbers. Please match your part number or vehicle to ensure proper fitment.
Compatible 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
Fits These Models:
- ✔ 2007-2010 Jeep Compass (Electronic Control Module)
- ✔ 2007-2010 Jeep Patriot (Electronic Control Module)
- ✔ 2007-2008 Dodge Caliber (Electronic Control Module)
- ✔ 2009 Dodge Caliber (Electronic Control Module; 1.8L, 2.0L Gasoline, or 2.4L with engine opt ED3)
- ✔ 2010 Dodge Caliber (Electronic Control Module; 2.0L or 2.4L)
Choosing this pre-programmed 2007-2010 Compass Engine Computer is the smartest way to get your vehicle back to factory-spec performance and reliability without the excessive cost and downtime of a dealership repair.
Is this engine computer really plug and play?
Is this engine computer really plug and play?
Yes, absolutely. We program the module to your vehicle’s VIN and mileage before shipping. Once you receive it, you can install it directly into your vehicle without needing any additional programming from a dealer or mechanic.
How do I provide my VIN and mileage?
After you place your order, you will be prompted to provide your vehicle’s information. It’s a simple step in the checkout process to ensure we program the module perfectly for your car.
Will this fix my check engine light?
If the check engine light is caused by an internal ECM failure (like codes P0601-P0606) or a communication error (U0100), this part is the correct solution. However, you should always diagnose the codes to ensure the issue isn’t with a different sensor or component.
Where is the ECM located on my 2008 Jeep Compass?
On the 2007-2010 Jeep Compass, Patriot, and Dodge Caliber, the Engine Control Module (ECM) is typically found in the engine compartment. It is usually mounted against the firewall on the driver’s side or on the driver’s side inner fender well.
Does this part come with a warranty?
Yes, all our modules come with a standard warranty that protects you against defects. Please check the warranty tab on this page for specific details and duration.