Restore Peak Performance to Your 3.7L Jeep Grand Cherokee
Is your 2005 or 2006 Jeep Grand Cherokee giving you headaches? Unexplained stalling at stoplights, a persistent check engine light, or a frustrating no-start condition can sideline your vehicle and your plans. As a technician with over two decades of experience, I’ve seen these exact issues countless times. The culprit is often a failing Engine Control Module (ECM), the electronic brain in charge of your engine’s performance, fuel economy, and emissions.
Don’t let a faulty computer keep you off the road. This is a direct-fit, fully programmed 2005-2006 Grand Cherokee ECM designed to get your Jeep running smoothly again without a costly trip to the dealership. We handle all the complex programming for you, flashing the module with your vehicle’s specific VIN and mileage. The result is a true plug-and-play solution that you can install with basic hand tools.
A Technician’s Notebook
A customer’s 2006 Grand Cherokee came into the shop last month with a really tricky intermittent stalling problem. It would only happen after it was fully warmed up, and it threw no consistent codes—just a generic communication error now and then. We checked fuel pressure, sensors, and wiring, but everything seemed fine. Based on my experience with these 3.7L engines, I suspected the ECM was failing internally under heat. We installed one of our pre-programmed modules, and the problem vanished instantly. The customer was thrilled to have his reliable daily driver back without spending a fortune on dealership diagnostics.
Is Your Grand Cherokee Showing These Signs?
- ✔ Unexplained engine stalling or shutting off while driving
- ✔ Difficulty starting the engine or a complete no-start condition
- ✔ A persistent Check Engine Light (CEL) on your dashboard
- ✔ Poor fuel economy and noticeable loss of power
- ✔ Rough idling or erratic engine performance
- ✔ Transmission shifting problems or harsh shifts
- ✔ Failure to pass state emissions testing
The Simple, Reliable Fix for Complex Problems
Replacing a modern engine computer used to mean towing your vehicle to a dealer for expensive programming. We’ve eliminated that step. By providing us with your VIN, you receive a module that is perfectly matched to your vehicle’s factory settings. This ensures all components, from the ignition system to the transmission, communicate correctly. This isn’t just a replacement part; it’s a comprehensive solution for your 2005-2006 Grand Cherokee ECM issues, restoring the precise control your vehicle had when it left the factory.
A Straightforward Guide to Installation
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to ensure the system is fully discharged.
- Locate the ECM: On your Grand Cherokee, the ECM is found in the engine compartment on the right-hand (passenger) side, typically near the firewall.
- Disconnect the Wiring: Carefully unplug the electrical connectors from the old ECM. There are usually release tabs that need to be pressed or lifted. Avoid pulling on the wires themselves.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket. Keep the mounting hardware, as you will need it for the new module.
- Install the New ECM: Mount your new, pre-programmed module onto the bracket and secure it with the original hardware.
- Reconnect Everything: Plug the wiring harnesses firmly into the new ECM until they click into place. Reconnect the negative battery terminal.
- Final Step: Start the engine. The vehicle may run a little rough for the first few minutes as it completes its internal relearn process. Your Jeep is now ready to drive!
Verified Vehicle Compatibility
This engine control module is a guaranteed fit for the following vehicles with the specified options:
- Make: Jeep
- Model: Grand Cherokee
- Years: 2005, 2006
- Engine: 3.7L V6
- Drivetrain: 4×4
Part Number Cross-Reference
This module is a direct replacement for the following part numbers. If your original module has any of these numbers, this part is compatible:
05094895AB, 05094898AA, 05094898AB, 05094898AC, 05094898AD, 05094898AE, 05094898ZB, 56044742AC, 56044742AD, 05094898AF
Frequently Asked Questions
Do I need to get this ECM programmed by a dealer?
No. This engine computer arrives at your door fully programmed to your vehicle’s VIN and mileage. It is a true plug-and-play installation with no additional programming required.
How do I provide my VIN and mileage?
You can enter your vehicle’s VIN and current mileage during the checkout process. Please double-check it for accuracy to ensure perfect programming.
Will this fix my check engine light?
If the check engine light is on due to a fault within the ECM itself, this part will resolve the issue. We always recommend having the codes read with a scanner first to confirm the diagnosis.
Where is the ECM located on my 2005 Grand Cherokee?
The ECM is located in the engine bay on the passenger side (RH side), mounted near the rear of the compartment by the firewall.
Is this part difficult to install for a DIYer?
Not at all. With basic hand tools like a socket set, the installation is very straightforward. Our step-by-step guide helps make the process simple and easy to follow.