This ECM fits the following: 2004 GMC Sierra
You must exactly match the service number 12586242 with the sticker from your Original Computer.**If the number is not an exact match it will not work**
"PLUG & PLAY"
"PLUG & PLAY" applies to most of these ECMs. If your ECM does not apply to this we will let you know.
When you order send us a message with the VIN Number
The computer will NOT ship until we have the VIN
This is a re-manufactured unit that is tested.
No core is required you keep your old unit.
The computer has a 6 month warranty.
The photo in this listing is a stock image, and will not look exactly
like the computer you get.
We will ship your item within 1-2 business days of receiving a cleared payment.
Module Medics does not use ACDelco Technical Delivery System (TDS) services for any module services. ACDelco is an automotive parts brand owned by General Motors Company.
A crankshaft variation relearn may need to be performed once the vehicle is running (does not apply if you are cloning the ECM). This will be evident if the check engine or service engine soon light comes on once the vehicle is running. You will need access to a scan tool capable of doing this procedure to do this and clear any related trouble codes (Code P0315). If this is not available to you a repair shop will have to perform this and clear the related trouble code. The vehicle will run normal but the "Service Engine Soon" light will come on and a trouble code will be stored until this is resolved.
