Part Number

5C3A-12A650-HSA & VK2-C3592 - You must have both of these on your part number sticker!

ECU will arrive with updated part number sticker having been programmed with latest Ford Software Updates!

Fitment/Interchange

This ecu will interchange or replace the following ecu part numbers on 2005 F-250 F-350 F-450 6.8L trucks: 

(Please note your ecu must also have VK2-C3592 on it as well as one of the below numbers)

5C3A-12A650-HSA

5C3A-12A650-HSB

5C3A-12A650-HTA

5C3A-12A650-HTB

5C3A-12A650-HUA

5C3A-12A650-HUB

5C3A-12A650-HVA

5C3A-12A650-HVB

5C3A-12A650-HXA

5C3A-12A650-HXB

5C3A-12A650-HYA

5C3A-12A650-HYB

5C3A-12A650-HZA

5C3A-12A650-HZB

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 has TCU communication and a/c compressor signal!
• ECU powered up and has communication!
• ECU fuel pump/main relay tested good!
• ECU injectors/coils tested 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 below for *PLUG and PLAY* details.

Programming / PATS Security

For Plug and Play you must do the following three steps:

Step 1: Match your part number per above fitment guide

Step 2: Program ecu to your VIN. 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. 

*** If for any reason you believe your vehicle has Ford PATS Security please email us prior to purchase. ***

Item Condition

• Mounting points are all open and intact
• Pins perfect, none are broken or bent
• Lock tabs in place
• Connector plastic may have minor chip but pins, guides and lock tabs are in 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 $60 partial refund let us know during checkout through the "notes to seller" and we will send a prepaid return label with your order. Once your original item comes in we will process your refund promptly.