Is Your Jeep Grand Cherokee Running Rough?
If your 2009 or 2010 Jeep Grand Cherokee or Commander with the 3.7L engine is experiencing frustrating issues like stalling, poor fuel economy, a persistent check engine light, or a no-start condition, the root cause is often a failing Engine Control Module (ECM). The ECM is the central computer of your vehicle, responsible for managing everything from fuel injection and ignition timing to transmission shifting and emissions. When it starts to fail, it can create a cascade of problems 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 replacement 2009-2010 Grand Cherokee ECM is the definitive solution to restore your vehicle’s performance and dependability.
From the Diagnostic Bay
We had a 2009 Grand Cherokee 3.7L come into the shop that was giving the owner fits. The vehicle would randomly stall at stoplights and occasionally refuse to start altogether, but it threw no consistent codes—just a random misfire code now and then. The owner had already replaced the spark plugs, ignition coils, and even the crankshaft position sensor with no luck. After running a full diagnostic, we noticed the 5-volt reference signal from the ECM was fluctuating erratically. This tiny instability was causing intermittent sensor dropouts, leading to the ghost-like symptoms. We installed one of our pre-programmed ECMs, and the Jeep fired up instantly and ran perfectly. It’s a classic case where the problem isn’t a bad sensor, but the computer that reads them.
Symptoms of a Failing 2009-2010 Grand Cherokee ECM
A failing engine computer can manifest in numerous ways. If you’re noticing any of the following, it’s a strong indicator that your ECM may need replacement:
- ✔ Persistent Check Engine Light (CEL) that won’t clear, or codes related to internal processor failure.
- ✔ Vehicle refuses to start or has difficulty starting (cranks but won’t turn over).
- ✔ Sudden stalling or hesitation while driving, especially when coming to a stop.
- ✔ Noticeable decrease in fuel efficiency for no apparent reason.
- ✔ Rough idling or engine misfires.
- ✔ Automatic transmission shifting erratically or harshly.
- ✔ Communication errors with diagnostic scan tools.
The Plug & Play Solution You Need
The biggest hurdle in replacing an ECM is the expensive and time-consuming programming required at a dealership. Our units eliminate that step entirely. This engine computer arrives at your door fully programmed to your vehicle’s specific Vehicle Identification Number (VIN) and mileage. This means the installation process is as simple as it gets: disconnect the battery, swap the modules, and reconnect the battery. There is no need for a trip to the dealer, no special tools, and no additional programming fees. It’s a true Plug & Play solution designed to get you back on the road quickly and affordably.
This module is a direct replacement for a wide range of part numbers, ensuring compatibility with your vehicle. It is engineered to meet or exceed original equipment specifications for performance and longevity. Compatible part numbers include: 05150467AA, 05150467AB, 68028166AB, 68028166AC, 68028166AD, 68028166AE, 68028166AF, 68060531AB, 68060531AC, 68060531AD, 68059198AA, 68059198AB, 68028167AB, 68028167AC, 68028167AD, 68028167AE, 68028162, 68059197, 68028163, 68028154, 68059196, 68028155, 68028155AD, 68028150, 68059195, 68028151, 68028174, 68028175, 68028176.
Frequently Asked Questions
Is this ECM truly “Plug & Play”?
Yes, absolutely. We program the module with the latest software updates from the manufacturer and flash it to your specific VIN. When you receive it, it’s ready for installation without any need for a trip to the dealership or a mechanic for further programming.
What information do you need to program this module?
During the checkout process, we will require your vehicle’s 17-digit VIN (Vehicle Identification Number). This ensures we can program the module with the correct software and security information for your exact vehicle configuration.
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 to have a qualified technician perform a full diagnostic. However, if you’ve already replaced common culprits like sensors and spark plugs without success, the ECM is the most likely remaining cause.
Where is the ECM located on my 2009-2010 Grand Cherokee?
On the 2009-2010 Jeep Grand Cherokee, the Electronic Control Module is located in the engine compartment, on the right-hand (passenger) side, towards the rear near the firewall. On the Commander, it is also on the right-hand side of the engine compartment.
Will this fix my transmission shifting issues?
In many cases, yes. The ECM works in conjunction with the Transmission Control Module (TCM) and often controls shifting logic. If the ECM is sending faulty data, it can directly cause poor shifting performance. Replacing a bad ECM can resolve these related issues.