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GM 12678511 Engine Control Module Assembly (W/ 2nd Mpu)

2007-2010 GM

Customer Questions & Expert Answers (4)
GM 12678511 Engine Control Module Assembly (W/ 2nd Mpu)
  • Part Description
    Module Assembly, Engine Control (W/ 2Nd Mpu)
  • Replaces
    12636660, 12607096
  • Manufacturer
    General Motors
Make sure this part fits
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  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number12678511
    Part DescriptionModule Assembly, Engine Control (W/ 2Nd Mpu)
    Other NamesECM, PCM
    Item Dimensions8.2 x 7.4 x 4.0 inches
    Item Weight2.30 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces12636660, 12607096
    ManufacturerGeneral Motors
    SKU12678511
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California’s Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    2008-2009 Buick Allure8 Cyl 5.3LSUPER SERIES 4 DOOR
    2008 Buick Enclave6 Cyl 3.6LSPORT UTILITY VEHICLE 2WD, SPORT UTILITY VEHICLE AWD
    2008-2009 Buick LaCrosse8 Cyl 5.3LSUPER SERIES 4 DOOR
    2007 Buick Rainier8 Cyl 5.3L4 DOOR
    2008 Cadillac XLR8 Cyl 4.4L, 8 Cyl 4.6LCONVERTIBLE, V CONVERTIBLE
    2008 Chevrolet Colorado4 Cyl 2.9L, 5 Cyl 3.7LCREW CAB, EXTENDED CAB, EXTENDED LENGTH, PICKUP
    2008-2009 Chevrolet Impala8 Cyl 5.3LLS, LS POLICE CAR, LT, LT 3.5, LTZ, SS
    2008-2010 Chevrolet Malibu4 Cyl 2.4L, 6 Cyl 3.6L4 DOOR HYBRID, LT 4 DOOR NOTCHBACK, LTZ 4 DOOR NOTCHBACK
    2007-2008 Chevrolet Trailblazer8 Cyl 5.3L, 8 Cyl 6.0L4 DOOR
    2008-2009 Chevrolet Uplander6 Cyl 3.9L, 6 Cyl 3.9L FlexCROSSOVER SPORT VAN, CROSSOVER SPORT VAN EXTENDED
    View More
  • Customer Questions & Expert Answers

    Q:
    I am wonder if this is complete and correct part for my vehicle. Posted by GMPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if 12678511 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    How to remove the Engine Control Module on Chevrolet Trailblazer? Posted by Customer
    A:
    For six-cylinder models, extreme caution must be taken in order to avoid static electricity damage when removing the Powertrain Control Module (PCM). Before touching the PCM, ground yourself to the body of the vehicle and use an anti-static pad for storage purposes after removal. It should be noted that a new PCM will require reprogramming with special equipment, as well as going through a crankshaft position sensor variation relearn procedure and a vehicle anti-theft system password relearn procedure. The following procedure is applicable only to removal and installation of original PCM. Pull off the positive cable from battery terminal then clean any debris around the connectors of the PCM. Unscrew the bolts then gently pull apart electrical connectors from PCM. Unfasten mounting nuts and bolts then lift out PCM. Disconnecting battery cable and cleaning debris around connector on PCM are same for V8 models made between 2002-04. Remove cover on top of PCM then release its retainer latch. Take off mounting tabs and remove it from bracket. Carefully release electrical connections from it by unlocking screws holding them up at their place. For V8 models starting 2005 disconnect battery cable together with cooling fan electrical connector respectively.Remove ECM cover then clear all rubbish surrounding other side of electrical connectors before reaching out to this part below.Detaching bank of three electrical connectors from ECM is another move one would make.Detach both latches holding it in place with two fingers' tension so that top section can tilt away while fining points of nothingness inside which you find another engine control module thus removing this part entirely.
    Posted by GMPartsGiant Specialist
    Q:
    Is this a power train control unit for engine and transmission? Posted by Customer: 2008 Saturn Vue
    A:
    YES IT IS
    Posted by GMPartsGiant Specialist 13/10/2021
    Q:
    Is this ECM a plug and play unit? Posted by Customer
    A:
    No, this ECM will need to be programmed
    Posted by GMPartsGiant Specialist 27/1/2021
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

Genuine GM Part 12678511, the Right Choice

To ensure reliability, purchase GM part # 12678511 Engine Control Module Assembly (W/ 2nd Mpu). It is sometimes referred to as GM Engine Control Module. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific Cadillac XLR models. It fits Chevrolet Impala, Malibu, Trailblazer. It also fits GMC Acadia, Canyon, Envoy. This also fits Saturn Aura, Outlook, Vue.

GMPartsGiant.com is a leading supplier of genuine GM parts and accessories such as GM 12678511 Engine Control Module Assembly (W/ 2nd Mpu). You're certainly in the right place if you're searching for the great cost-effective OEM GM parts. Look no further than our vast inventory of genuine GM parts offered at unbeatable online prices, all of which are backed by the manufacturer's warranty. Not to forget, our hassle-free return policy and quick delivery service ensure a smooth shopping experience for you. For detailed GMC parts information, click here.

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