Is Your 2009-2010 Jeep Commander or Grand Cherokee Running Rough?
If you’re dealing with frustrating engine problems in your 3.7L Jeep, a failing Engine Control Module (ECM) is often the culprit. This critical component is the brain of your vehicle, managing everything from fuel mixture and ignition timing to transmission shifting and emissions control. When it starts to fail, it can cause a cascade of issues that are difficult to diagnose and can leave you stranded. Don’t let a faulty computer keep your reliable Jeep off the road. This direct-fit, pre-programmed engine computer is the definitive solution to restore your vehicle’s performance and reliability.
We had a 2010 Grand Cherokee 3.7L come into the shop with a persistent, random misfire and a check engine light that previous mechanics couldn’t solve. They had replaced plugs, coils, and even injectors, but the problem remained. After hooking up our advanced scanner, we noticed the data stream from the ECM was erratic, with fuel trim values jumping all over the place. Instead of throwing more parts at it, we tested the ECM’s power and ground circuits, which were solid. The diagnosis pointed directly to an internal failure of the module itself. After installing one of our pre-programmed units, the Jeep ran perfectly smooth. It’s a classic case where the root cause was the computer, not the parts it controls.
Common Symptoms of a Failing ECM
- ✔ Check Engine Light is on with various, often inconsistent, trouble codes.
- ✔ Engine stalling, stumbling, or hesitating during acceleration.
- ✔ Noticeable decrease in fuel economy.
- ✔ Vehicle refuses to start, even with a good battery and starter.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Communication errors when trying to use an OBD-II scan tool.
- ✔ Misfire codes (P0300-P0306) that persist after replacing ignition components.
The Simple, Plug-and-Play Solution: Your 2009-2010 Commander ECM
Forget about expensive dealership visits, towing fees, and the headache of programming a new module. We’ve eliminated the complexity. This Engine Control Module is meticulously prepared for your specific vehicle. We flash it with the latest Chrysler software updates and program it using your vehicle’s unique Vehicle Identification Number (VIN). This ensures that when it arrives, it’s a true plug-and-play installation. Simply disconnect the battery, swap the old module with this one, reconnect the battery, and start your engine. All your vehicle’s original settings, including key programming and security information, are retained and recognized by the new module seamlessly.
This unit is a direct replacement for a wide range of original part numbers, including 05150467AA, 68028166AE, 68060531AD, 68059198AB, 68028167AE, 68028151, and many more. Located in the right-hand (passenger side) of the engine compartment, replacement is straightforward for any DIY mechanic or professional technician.
Frequently Asked Questions
What exactly does this ECM do?
The Engine Control Module (ECM) is your Jeep’s central computer. It takes data from sensors all over your engine and vehicle to precisely control fuel injection, spark timing, and emissions systems to ensure optimal power, efficiency, and smooth operation.
Is this unit truly ‘Plug and Play’?
Yes. We program the module with your vehicle’s VIN and mileage before shipping. This means no additional programming or dealer visit is required. Once installed, the module will sync with your vehicle’s existing components, including the security system and keys.
Where is the ECM located on my 2009 Jeep Commander or Grand Cherokee?
For both the 2009-2010 Commander and Grand Cherokee with the 3.7L engine, the Electronic Control Module is located in the engine compartment on the right-hand (passenger) side, typically near the firewall or shock tower.
How can I be sure my ECM is the problem?
While the symptoms listed above are strong indicators, the best way to be certain is through a professional diagnosis. However, if you’ve already replaced common tune-up parts (like spark plugs and coils) and are experiencing multiple, unrelated electronic issues or communication codes, the ECM is a very likely cause.
Will this fix my vehicle’s emissions test failure?
In many cases, yes. A faulty ECM can cause incorrect air/fuel ratios and other issues that lead to failed emissions tests. Replacing a defective module with our correctly programmed unit will restore the engine’s factory emissions settings, helping you pass the test.