04 GRAND CHEROKEE 4.7L ECU ECM PCM ENGINE COMPUTER UNIT 56044564AJ OE

56044564AJ

ECU has no OEM security. You will have black or steel keys.

NOTE: The backside breather plug is missing. You'll want to swap the plug from your ecu into this unit prior to install. Review pictures.

We offer FREE programming, see details below!

This ecu will interchange or replace the following part numbers:

56044564AA

56044564AB

56044564AC

56044564AD

56044564AE

56044543AF

56044564AE

56044564AG

56044564AH

56044564AI

56044564AJ

ECU has been tested with our state of the art vehicle simulator which tests over 25 circuits of the ECU! Some of those are listed below:
• Reference Voltage Good!
• ECU powered up and has communication!
• ECU fuel pump/main relay test good!
• ECU injectors/coils test good and much more!

• Disconnect the negative terminal of the battery. Make sure the battery connector is not touching the battery post.
• Disconnect and remove the module to be replaced.
• Install and connect the replacement module.
• Connect the negative terminal of the battery.
• See "Programming" below for additional install instructions.

For Plug and Play you must follow the below three steps:

Step 1: Match your part number series per above fitment guide

Step 2: Match your ecu security. Most JTEC style ecu's do NOT have SKIM security and are plug and play once programmed. (You generally will have grey ignition keys or chipped keys.) 

Step 3: Program ecu to your VIN and mileage. We provide free programming for our customers. During checkout you must list your VIN and mileage in the "Notes to Seller" for us to program the ECM. If we do not hear from you through the order notes or a message through eBay we will assume your mechanic is performing the programming (no problem at all) and we will ship the ECM out the next business day as directed by eBay.

• Mounting points are all open and intact
• Pins perfect, none are broken or bent
• Connector lock tabs are place

This ECM comes with a 90 day warranty from the date of purchase. Please keep a copy of your purchase record which we will send with your item.