Restore Peak Performance to Your GMC Acadia
If you’re grappling with frustrating issues like a persistent check engine light, erratic engine behavior, stalling, or a no-start condition in your 2007-2008 GMC Acadia, a failing Engine Control Module (ECM) is a very likely culprit. As the brain of your vehicle, the ECM governs everything from fuel mixture and ignition timing to transmission shifting. When it falters, the symptoms can be widespread and confusing. This isn’t just an inconvenience; it’s a matter of reliability and safety.
This replacement Engine Control Module is the definitive solution to get your vehicle running smoothly again. We take the guesswork and hassle out of the repair by pre-programming the module specifically to your vehicle using your VIN. This means it arrives loaded with the latest factory software from GM, ensuring perfect communication with your Acadia’s other systems right out of the box. You get a reliable, plug-and-play fix without the exorbitant costs and scheduling headaches of a dealership visit.
A Technician’s Notebook: The Intermittent Gremlin
I once had a 2008 Acadia in my bay that was a real head-scratcher. The owner complained of random stalling at stoplights and occasional no-starts, but it would always fire up after a few tries. There were no consistent trouble codes, just a history of lost communication faults (U-codes). We checked grounds, wiring harnesses, and power feeds for hours. Everything seemed fine. On a hunch, I gently tapped the ECM housing while the engine was idling, and it immediately stumbled. The problem was an internal fracture on the ECM’s circuit board, causing intermittent connection failures with heat and vibration. Replacing the ECM with a properly programmed unit solved the problem instantly. It’s a classic example of how a failing module can create ghost-like issues that are impossible to trace through conventional wiring checks.
Is Your Acadia Displaying These ECM Failure Signs?
A failing engine module can manifest in numerous ways. If you’re experiencing any of the following, it’s time to consider a replacement:
- ✔ Check Engine Light is illuminated with codes like P0601, P0606, or U0100.
- ✔ The engine cranks but refuses to start.
- ✔ Unexplained drops in fuel economy.
- ✔ Rough idling, stalling, or hesitation during acceleration.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Apparent loss of power.
- ✔ Communication errors with diagnostic scan tools.
Your Straightforward Installation Guide
Installing your pre-programmed 2007-2008 Acadia Engine Module is a manageable job for a confident DIYer. Since the programming is done, no special tools are required.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electronic work.
- Locate the ECM: On the 2007-2008 Acadia, the ECM is typically located behind the cooling fan shroud in the engine bay. You may need to remove a few plastic clips or bolts to access it.
- Disconnect the Connectors: Carefully release the locking tabs on the wiring harness connectors and pull them straight out from the old module. Inspect the connectors for any corrosion or damage.
- Swap the Modules: Unbolt the old ECM from its mounting bracket and set it aside. Mount the new module in its place and secure it with the original hardware.
- Reconnect Everything: Firmly press the wiring harness connectors into the new ECM until they click into place. Reconnect your vehicle’s negative battery terminal.
- Final Step: In some cases, a security relearn procedure may be needed to sync the new ECM with your vehicle’s anti-theft system. This can often be done without a scan tool by cycling the key in the ignition. Consult your owner’s manual for the specific procedure for your vehicle.
Verified Compatibility for Your Vehicle
This module is a direct replacement for service part number 12630457 and is also interchangeable with the following GM service numbers: 12590032, 12602044, 12603530, 12605843, 12607096, and 19210737. It is guaranteed to fit a wide range of GM vehicles. Please verify your vehicle from the list below.
COLORADO 08 Electronic Control Module; (RH firewall)
ENVOY 07-08 Electronic Control Module; 5.3L (LH engine)
ENVOY 08 Electronic Control Module; 4.2L (LH engine), ID 12607096
G6 09 Electronic Control Module; (LH front engine compartment), 3.6L, ID 19210737
MONTE CARLO 06 Electronic Control Module; (lower part of air cleaner box), 3.5L
XLR 09 Electronic Control Module; (RH front engine compartment), ID 12607096
AURA 08-09 Electronic Control Module; (RH firewall), 2.4L, w/hybrid
DTS 06 Electronic Control Module
DEVILLE 05 Electronic Control Module; (LH engine compartment), ID 12590032
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12605843
IMPALA 06 Electronic Control Module; (lower part of air cleaner box), 3.5L
LACROSSE 08-09 Electronic Control Module; (lower air cleaner housing), 5.3L
STS 06 Electronic Control Module; (LH frame rail), 4.4L
TRAILBLAZER 08 Electronic Control Module; (LH engine), ID 12636660
UPLANDER 09 Electronic Control Module; (LH engine compartment), (3.9L)
ISUZU ASCENDER 08 Electronic Control Module; (4.2L, LH engine), ID 19210737
SAAB 9-7X 07 Electronic Control Module; (LH engine), 8 cylinder
TRAILBLAZER 07 Electronic Control Module; (LH engine), 5.3L
ENCLAVE 08 Electronic Control Module; (behind fan shroud), ID 19210737
LUCERNE 08 Electronic Control Module; (lower part of air cleaner box), 4.6L, ID 12607096
MONTE CARLO 06 Electronic Control Module; (lower part of air cleaner box), 3.9L
RAINIER 07 Electronic Control Module; (LH engine), 5.3L
ISUZU ASCENDER 08 Electronic Control Module; (4.2L, LH engine), ID 12607096
CTS 06 Electronic Control Module; (RH engine compartment), V-Series, ID 12603530
STS 08 Electronic Control Module; (LH frame rail), 4.6L
G6 06 Electronic Control Module; (LH front engine compartment), ID 12603530
G6 08 Electronic Control Module; (LH front engine compartment), 3.6L
ION 06 Electronic Control Module; 2.4L (opt LE5)
MALIBU 06 Electronic Control Module; 3.9L
MALIBU 08 Electronic Control Module; new style (emblem in bumper cover), 2.4L, w/hybrid
RELAY 06 Electronic Control Module; (LH engine compartment), 3.9L
VUE 08-09 Electronic Control Module; 2.4L, VIN Z (8th digit, opt LAT)
OUTLOOK 08 Electronic Control Module; (behind fan shroud)
SOLSTICE 06 Electronic Control Module; (LH front frame rail)
VUE 08 Electronic Control Module; 3.6L
VUE 09 Electronic Control Module; 3.6L, VIN 7 (8th digit, opt LY7)
ACADIA 07-08 Electronic Control Module; (behind fan shroud), ID 12607096 (ECM)
AURA 08-09 Electronic Control Module; (RH firewall), 3.6L
ENVOY 08 Electronic Control Module; 4.2L (LH engine), ID 19210737
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12603530
GRAND PRIX 08 Electronic Control Module; (lower air cleaner box), 5.3L
HHR 06 Electronic Control Module; (LH rear engine compartment), 2.4L
STS 08 Electronic Control Module; (LH frame rail), 4.4L
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12590032
ISUZU I-290 08 Electronic Control Module; (RH firewall)
LUCERNE 06 Electronic Control Module; (lower part of air cleaner box), 4.6L
MALIBU 09-10 Electronic Control Module; 2.4L, w/hybrid
UPLANDER 08 Electronic Control Module; (LH engine compartment), (3.9L), ID 19210737
IMPALA 06 Electronic Control Module; (lower part of air cleaner box), 3.9L
MONTANA 06 Electronic Control Module; (LH engine compartment), (SV6), 3.9L
TRAILBLAZER 08 Electronic Control Module; (LH engine), ID 19210737
ENVOY 08 Electronic Control Module; 4.2L (LH engine), ID 12636660
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12602044
TRAILBLAZER 08 Electronic Control Module; (LH engine), ID 12607096
TRAILBLAZER 09 Electronic Control Module; (LH engine), 4.2L
CANYON 08 Electronic Control Module; (RH firewall)
COBALT 06 Electronic Control Module; (LH front engine compartment), 2.4L (VIN B, 8th digit, 4-146)
ISUZU I-370 08 Electronic Control Module; (RH firewall)
MALIBU 09 Electronic Control Module; 3.6L
SRX 08 Electronic Control Module; (LH engine compartment), (4.6L)
SAAB 9-7X 08 Electronic Control Module; (LH engine), 5.3L
ENCLAVE 08 Electronic Control Module; (behind fan shroud), ID 12607096
G6 09 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12607096
IMPALA 08-09 Electronic Control Module; (lower part of air cleaner box), 5.3L
XLR 06 Electronic Control Module; (RH front engine compartment), 4.4L
XLR 08 Electronic Control Module; (RH front engine compartment)
ENVOY 09 Electronic Control Module; (LH engine), 4.2L
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12607096
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12618163
LUCERNE 08 Electronic Control Module; (lower part of air cleaner box), 4.6L, ID 19210737
MONTANA 08-09 Electronic Control Module; (LH engine compartment)
PURSUIT 06 Electronic Control Module; (LH front engine compartment), 2.4L
VUE 10 Electronic Control Module; 3.6L
ACADIA 08 Electronic Control Module; (behind fan shroud), ID 19210737 (PCM)
DTS 08 Electronic Control Module
TERRAZA 06 Electronic Control Module; (LH engine compartment), 3.9L
TRAILBLAZER 07 Electronic Control Module; (LH engine), 6.0L
SAAB 9-7X 08 Electronic Control Module; (LH engine), 6.0L
HUMMER H3 08 Electronic Control Module; (RH firewall)
MALIBU 08 Electronic Control Module; new style (emblem in bumper cover), 3.6L
UPLANDER 08 Electronic Control Module; (LH engine compartment), (3.9L), ID 12607096
UPLANDER 06 Electronic Control Module; (LH engine compartment), 3.9L
Frequently Asked Questions
What does VIN programming mean for me?
It means this module arrives ready for installation. We use your Vehicle Identification Number (VIN) to load the precise, up-to-date software for your vehicle’s specific configuration. This eliminates the need for a trip to the dealer for expensive programming services, saving you time and money.
Is this part difficult to install myself?
For someone with basic mechanical skills, this is a very straightforward replacement. The most important part is that the complex software programming is already handled by our team. Please refer to our installation guide above for the basic steps.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit VIN. We cannot ship your module until we have this information to perform the programming service.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of the ECM (common codes P0601-P0606), then yes, this part will resolve the issue. However, it’s always best to have the codes read by a scanner to confirm the diagnosis, as the light can indicate many other potential problems.
What if my original part number is different?
No problem. This ECM is a direct replacement for several service numbers, including 12590032, 12602044, 12603530, and others listed above. As long as your vehicle is on the compatibility list, this module will work perfectly once programmed to your VIN.