Is Your 2005-2006 Grand Cherokee Running Rough?
If you’re dealing with frustrating issues like stalling at stoplights, erratic shifting, a persistent check engine light, or a complete no-start condition in your 3.7L 4×4 Grand Cherokee, a failing Engine Control Module (ECM) is a very likely culprit. Over my 20+ years in the shop, I’ve seen countless drivers spend a fortune on replacing sensors and other parts, only to find the root cause was the vehicle’s computer all along. The ECM is the brain of your engine, and when it starts to fail, it can create a cascade of confusing and costly problems.
The Simple, Reliable Solution: A Pre-Programmed 2005-2006 Grand Cherokee ECM
Forget about expensive dealership visits, towing fees, and the headache of programming a new module. This replacement Engine Control Module arrives at your door completely programmed to your vehicle’s specific VIN and mileage. It’s a true plug-and-play solution designed to get your Jeep back to factory-spec performance without any extra steps. We handle all the complex programming on our end, so you can handle the straightforward installation yourself.
Expert Pro Tip from a 20-Year Technician
Before you install your new ECM, take a moment to inspect the wiring harness connectors. Over the years, the pins inside these connectors can get corroded or develop a thin layer of oxidation, especially in the engine bay environment. Use a quality electronics cleaner and a small nylon brush to gently clean both the male and female pins. A clean, solid connection is critical for the ECM to communicate properly with all the vehicle’s sensors. I’ve seen intermittent issues persist even with a new part simply because of a poor connection, so this five-minute check can save you hours of frustration.
Symptoms of a Failing 3.7L Grand Cherokee ECM:
- โ Unexplained Check Engine Light (CEL) with various codes
- โ Engine stalling or shutting off while driving
- โ Rough idle or misfiring
- โ Harsh or incorrect automatic transmission shifting
- โ Vehicle won’t start, but the battery and starter are good
- โ Poor fuel economy
- โ Communication errors with diagnostic scan tools
Plug-and-Play Installation: No Dealer Visit Required
You can restore your Grand Cherokee’s performance right in your own driveway. The ECM is located in the RH (passenger side) rear of the engine compartment. Follow these simple steps:
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes for any residual power to dissipate.
- Locate the Module: Find the ECM mounted on the passenger side firewall in the engine bay.
- Disconnect: Carefully unplug the electrical connectors. There are typically release tabs that need to be pressed or pulled to disengage them. Never force them.
- Unbolt the Old Unit: Remove the mounting bolts holding the old ECM in place and set it aside.
- Install the New ECM: Mount your new, pre-programmed ECM using the original hardware.
- Reconnect: Firmly plug the wiring harness connectors into the new module until they click securely into place.
- Power Up: Reconnect the negative battery terminal. Turn the key to the ‘ON’ position (without starting the engine) for 10-15 seconds to allow the systems to initialize before starting the vehicle. Your Jeep is ready to go!
Guaranteed Compatibility
This module is a direct replacement for 2005-2006 Jeep Grand Cherokee models equipped with the 3.7L engine and 4×4 drivetrain. It is fully compatible with the following part numbers:
05094895AB, 05094898AA, 05094898AB, 05094898AC, 05094898AD, 05094898AE, 05094898ZB, 56044742AC, 56044742AD, 05094898AF
Order today and get the reliable, pre-programmed solution to fix your Jeep’s running issues for good.