Part Number

0503588

ECU has SKIM security and requires programming before installation.

We offer FREE programming, see details below!

Fitment/Interchange

This ecu will interchange or replace the following part numbers:

0503588AA

0503588AB

0503588AC

0503588AD

0503588AE

0503588AF

0503588AG

0503588AH

0503588AI

P0503588AI

R5035588AI

0503588

Tech Notes

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 Fan 2 control output verified
• ECU Transmission power output verified
• ECU Purge circuit verified good
• ECU powered up and has communication!
• ECU fuel pump/main relay test good!
• ECU injectors/coils test good and much more!

Install Notes

• 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. 

Programming

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 GPCII style ecu's have SKIM security and are not plug and play. 

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.

Item Condition

• Mounting points are all open and intact
• Pins perfect, none are broken or bent
• There may be some minor chipped plastic on connector but lock tabs are place

Warranty / Optional Core Return

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.

If you would like to return your core for a $25 partial refund let us know during checkout through the "notes to seller" and we will send a prepaid return label with your order. It's that simple. Once your original item comes in we will process your refund promptly.