PROGRAMMED - GM ENGINE COMPUTER ECM PCM - SERVICE NUMBER: 12656993

This item is compatible with the following computer service numbers:

12692067 12676230 12656993 12662034 12662034 12672537 12673195 12663391 12672963
 
This computer fits many different vehicles including:

• CADILLAC ATS 15 Electronic Control Module, (LH engine compartment), 3.6L

• CADILLAC CTS 15 Electronic Control Module, Sdn, 3.6L

• ESCALALADE 15 Electronic Control Module, (LH front under battery)

• ESCALADE ESV 15 Electronic Control Module, (LH front under battery)

• CADILLAC XTS 15-16 Electronic Control Module, (3.6L), VIN 8

• SILVERADO 1500 16 Electronic Control Module, (LH front under battery)

• COLORADO 15 Electronic Control Module, (RH firewall), 3.6L

• SUBURBAN 15000 15 Electronic Control Module, (LH front under battery)

• CORVETTE 15 Electronic Control Module, (RH cowl under dash)

• SIERRA 1500 16 Electronic Control Module, (LH front under battery)

• DENALI 1500 15 Electronic Control Module, (LH front under battery)

• DENALI 1500 16 Electronic Control Module, (LH front under battery)

• CANYON 15 Electronic Control Module, (RH firewall), 3.6L

• TAHOE 15 Electronic Control Module, (LH front under battery)

• YUKON 15 Electronic Control Module, (LH front under battery)

• YUKON XL 1500 15 Electronic Control Module, (LH front under battery)

• CADILLAC ATS 16 digit, opt LF4)

• CADILLAC CTS 16 Electronic Control Module, 6.2L

• CADILLAC CTS 16 Electronic Control Module, 3.6L, VIN 8 (8th digit, opt LF3)

• ESCALADE 16 Electronic Control Module, (LH front under battery)

• ESCALADE ESV 16 Electronic Control Module, (LH front under battery)

• CAMARO 16 Electronic Control Module, 6.2L

• SILVERADO 1500 15 Electronic Control Module, (LH front under battery)

• SILVERADO 1500 16 Electronic Control Module, (LH front under battery)

• SUBURBAN 1500 16 Electronic Control Module, (LH front under battery)

• CORVETTE 16 Electronic Control Module, (RH cowl under dash)

• SIERRA 15 15 Electronic Control Module, (LH front under battery)

• SIERRA 15 16 Electronic Control Module, (LH front under battery)

• DENALI 15 16 Electronic Control Module, (LH front under battery)

• TAHOE 16 Electronic Control Module, (LH front under battery)

• YUKON 16 Electronic Control Module, (LH front under battery)

• YUKON XL 1500 16 Electronic Control Module, (LH front under battery)

• CADILLAC ATS 14 Electronic Control Module, (LH engine compartment)

• CADILLAC CTS 14 Electronic Control Module, Sdn, 3.6L

• CADILLAC XTS 14 Electronic Control Module, (3.6L), VIN 8 (8th digit, opt LF3)

• SILVERADO 1500 14 Electronic Control Module, (LH front under battery)

• CORVETTE 14 Electronic Control Module, (RH cowl under dash)

• SIERRA 1500 14 Electronic Control Module, (LH front under battery)

• DENali 1500 14 Electronic Control Module, (LH front under battery)

• COLORADO 16 Electronic Control Module, (RH firewall), 3.6L

• CANYON 16 Electronic Control Module, (RH firewall), 3.6L 

-This Computer will be programmed to your VIN and will come with the latest GM calibration for your vehicle.

-This is necessary to ensure that your vehicle will run and function properly. Just because a computer service number matches yours does not mean it will work.

We do GM performance programming and can help you get the most out of your vehicle, including engine mods trouble codes, speed limit removal, Rev limiter, transmission shift firmness, cooling fan temp and much more. We have no limitations when it comes to the vehicles we program. If you are interested Send us a message or contact us by phone.

• IMPORTANT:

The 30-minute security relearn procedure will need to be done before the car will start with the replacement computer. The manual procedure requires no tools except a battery charger or jumper cables from another vehicle. This is necessary because the key will be on for 30+ minutes. It can also be done with a scan tool. Some vehicles are more difficult to do than others requiring multiple tries using the manual procedure. For these vehicles we recommend the use of a scan tool.

• IN SOME CASES:

A crankshaft variation relearn may need to be performed once the vehicle is

running. 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 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.

• NOTICE:

Both of these procedures are the responsibility of the end user. We sell engine computers programmed to your vehicle, it is the end user's responsibility to do both the vehicle theft deterrent relearn and the crankshaft variation relearn to make the computer functional on the vehicle.

We can disable both of these for a small programming fee but it is not recommended unless all other options are unavailable as it will cause various dash lights under certain circumstances.