******If this is not the ecm you are looking for please visit our e-bay store for more ECM’s.

This auction is for one 12581565 Ecm that will arrive at your door ready to install with the proper calibration programed to your specific vehical. This ECM will fit the follwing application:

2003 GMC SAFARI VAN V6 4.3L Engine

GM also used the SERV NO 12576106 in the 2003 Safari application. If your engine computer has the tag with SERV NO 12576106 then please visit our ebay store for the correct unit.

*Programmed to your specific vehicle with your vin number

*Shipped to your door ready to install

*1 year replacement guarantee

*No core charge –you keep your existing ECM - no extra trips to the post office to return a core.

*We ship in 1 to 2 days from receipt of payment - item is in stock and ready to ship.

******GM installed this 12581565 ECM in all of the above application as well as several other GM applications. This was possible because each of these models received their specific programming from the factory. In other words, you can't simply swap a used ECM from one vehicle to the next. We are a licensed user of the same GM software that a dealer would use to reprogram and update your computer. With your purchase we will reprogram the ECM, with the latest software updates available from GM, to your specific vehicle using your VIN (vehicle identification number).

******We have been in the ECM business for 10+ years. We are also a 10+ year eBay member with excellent positive feedback.

*Picture is of a 12581565 in stock. The item you recieve will be of like finish.

Other info:

Why buy your spare ECM from us? You will be purchasing a high quality used ECM. You get free Flash programming with every OBDII GM computer purchased. OBDII type computers have the “chip” imbedded into the ECM and it is not removable. The calibration file per the application is “Flashed”, or reprogrammed using a software package and a pass through device. The “chip” is no longer removed for programming. Proper programming is essential when replacing an ECM whether it is a used ECM or a remanufactured ECM. A used GM computer will have the software installed that pertains to the original vehicle that it was removed from. In some cases GM OBDII type computers will interchange with many different vehicles including those with different engine and transmission configurations. However, unless the computer is programmed with the correct software it won’t function properly upon installation. We will flash reprogram any OBDII computer purchased from us with your specific VIN number for the latest updated calibrations straight from GM for a stock calibration. This is important to ensure specific vehicle programming and to guarantee flawless performance in your vehicle. At the end of the auction you will need to provide us with your VIN number.

******View our e-bay store fore more ECM’s.

Many different names have been given to the engine computer since its inception over 30 years ago. Engine computers may be referred to as ECU (engine control unit), ECM (engine control module), PCM (power train control module), Brain Box, ECC (engine control computer), VPCM (vehicle control module), or Fuel Management System. For clarification we refer to an engine control computer as an ECM.