Is Your 2005-2006 Grand Cherokee Plagued by Frustrating Engine Problems?
As a mechanic with over two decades of experience under the hood, I’ve seen it all. A Jeep Grand Cherokee owner comes into the shop, completely fed up. Their 3.7L is stalling at stoplights, the check engine light is a permanent fixture on the dash, and fuel economy has plummeted. They’ve already spent a small fortune replacing sensors and spark plugs, but the issues persist. This scenario points directly to the vehicle’s brain: the Engine Control Module (ECM).
“A customer’s 2005 Grand Cherokee came in last week with these exact symptoms. It had a persistent misfire code that wouldn’t clear, even after a full ignition system service. The previous shop wanted to start tearing into the engine. I suspected the ECM, specifically the injector driver circuit. Before doing anything else, we swapped in a known-good programmed module. The misfire vanished instantly. It’s a classic case where the component controlling everything is the actual source of the fault, not the parts it’s controlling. This saved the customer hundreds, if not thousands, in unnecessary diagnostic time and parts.”
The Direct Solution: A Pre-Programmed 2005-2006 Grand Cherokee ECM
Don’t get stuck in a cycle of replacing parts. This Engine Control Module is the definitive solution for your 2005-2006 Jeep Grand Cherokee 4×4 with the 3.7L engine. We take all the guesswork and additional cost out of the repair. When you order from us, we flash the module with your vehicle’s specific VIN and current mileage. This means it arrives at your door ready for a simple, plug-and-play installation. No expensive trips to the dealership for programming are required.
Common Symptoms of a Failing Grand Cherokee ECM:
- โ Persistent Check Engine Light (CEL) with various codes
- โ Engine stalling, stumbling, or hesitating
- โ Rough or erratic idle
- โ Noticeable decrease in fuel efficiency
- โ Misfire codes that don’t resolve after replacing plugs or coils
- โ Complete no-start condition where the engine cranks but won’t fire
- โ Communication errors with diagnostic scan tools
Plug-and-Play Installation: Get Back on the Road Fast
You can perform this replacement right in your own driveway with basic hand tools. Forget about tow trucks and dealer service appointments. Follow these simple steps to restore your Jeep’s performance.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes for the system to fully discharge.
- Locate the ECM: On your Grand Cherokee, the ECM is found in the right-hand (passenger side) rear of the engine compartment, typically mounted to the firewall.
- Disconnect the Connectors: Carefully release the locking tabs on the three main electrical harness connectors and pull them straight off the module. Inspect the pins for any corrosion or damage.
- Remove the Module: Unbolt the mounting hardware that secures the old ECM to the firewall. Set the old module aside.
- Install the New ECM: Mount your new, pre-programmed module in the same location, securing it with the original hardware.
- Reconnect Everything: Firmly press the electrical connectors back into the new ECM until they click into place. Reconnect your negative battery terminal.
- Final Step: Start the engine and let it idle for a few minutes. Your Jeep will now be running with its correctly programmed new brain, and you’ll be ready for a test drive.
Guaranteed Compatibility
This module is a direct replacement for a wide range of original part numbers, ensuring a perfect match for your vehicle’s system. It is fully compatible with the following part numbers:
05094895AB, 05094898AA, 05094898AB, 05094898AC, 05094898AD, 05094898AE, 05094898ZB, 56044742AC, 56044742AD, 05094898AF
Precise Fitment for Your Vehicle
This part is specifically for:
- Make: Jeep
- Model: Grand Cherokee
- Years: 2005, 2006
- Engine: 3.7L
- Drivetrain: 4×4
- Location: RH rear engine compartment