Is Your Grand Cherokee Stalling, Running Rough, or Refusing to Start?
If your 2005 or 2006 Jeep Grand Cherokee with the 3.7L engine is giving you headaches, the problem might be deeper than a simple sensor. In my 20+ years as a diagnostic technician, I’ve seen countless owners chase ghosts, replacing coils, plugs, and sensors, only to find the root cause was a failing Engine Control Module (ECM). Symptoms like random stalling at stoplights, a flurry of unrelated check engine light codes, erratic transmission behavior, or a complete no-start condition often point directly to the vehicle’s brain.
“A customer’s ’06 Grand Cherokee came in last week with a persistent cylinder 3 misfire code. They had already replaced the coil pack and spark plug twice, but the issue remained. We hooked up an oscilloscope and quickly saw the problem: the ECM wasn’t sending the ground signal to fire the coil. It’s a classic sign of a failed driver circuit inside the computer, a problem no amount of new ignition parts can fix. We swapped in a pre-programmed module like this one, and the truck ran perfectly in minutes.”
The Direct Solution: A True Plug-and-Play ECM
Don’t waste more time and money on guesswork. This Engine Control Module is the reliable, straightforward solution you need. We take all the complexity out of the repair by pre-programming the unit specifically to your vehicle’s VIN and mileage before it ships. When it arrives at your door, it’s ready for immediate installation without any need for expensive dealer tools or programming services.
- โ No Dealer Programming: This module is delivered fully programmed to your VIN. It’s a true plug-and-play part.
- โ Fixes Common Issues: Directly addresses problems like no-start conditions, engine stalling, poor fuel economy, and false diagnostic trouble codes (DTCs).
- โ Guaranteed Compatibility: A direct replacement for your specific 3.7L 4×4 Grand Cherokee, ensuring perfect communication with all other vehicle systems.
- โ Save Time and Money: Avoid the high costs and scheduling hassles of a dealership service appointment. You can do this job right in your own driveway.
Plug-and-Play Installation: No Dealer Visit Required
Installing your new 2005-2006 Grand Cherokee ECM is a simple process that most DIYers can handle with basic tools. Follow these steps to get your Jeep back on the road.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before starting work.
- Locate the ECM: On your Grand Cherokee, the ECM is found in the engine compartment, on the right-hand (passenger) side, towards the firewall.
- Disconnect Harnesses: Carefully release the locking tabs on the electrical connectors and pull them straight off the module. Inspect the pins and connectors for any corrosion or damage. Clean them with a dedicated electronic cleaner if necessary.
- Remove the Old Module: Unbolt the mounting hardware that secures the old ECM to its bracket.
- Install the New Module: Mount your new, pre-programmed ECM in place and secure it with the original hardware.
- Reconnect Everything: Firmly plug the wiring harnesses back into the new module until they click into place. Reconnect the negative battery terminal.
- Start the Vehicle: Turn the key and let your Grand Cherokee run. The computer will complete its self-checks, and you’ll be ready to drive.
Fitment and Part Number Compatibility
This module is specifically for the following vehicles:
- Make: Jeep
- Model: Grand Cherokee
- Years: 2005, 2006
- Engine: 3.7L
- Drivetrain: 4×4
This unit is a direct replacement for part number 05094898AB and is fully interchangeable with the following part numbers, ensuring a perfect match for your vehicle’s original equipment:
05094895AB, 05094898AA, 05094898AB, 05094898AC, 05094898AD, 05094898AE, 05094898ZB, 56044742AC, 56044742AD, 05094898AF