Restore Peak Performance to Your GM Vehicle
Is your 2008-2009 Chevrolet Equinox or other GM vehicle running rough, stalling unexpectedly, or showing a persistent Check Engine Light? These are classic signs of a failing Engine Control Module (ECM), the computer that serves as the brain of your engine. A faulty ECM can cripple your vehicle’s performance, fuel economy, and reliability. This replacement Engine Control Module, part number 12617568, is the definitive solution to get your vehicle running smoothly again. We take the guesswork and extra cost out of the repair by programming the module specifically for your vehicle using your VIN before it ships. This means it arrives ready for a straightforward installation, loaded with the latest factory software from GM.
A Technician’s Notebook
I remember a 2008 Sierra 2500 that came into the bay with a persistent P0204 code (Injector Circuit/Open – Cylinder 4) that just wouldn’t clear. The owner had already replaced the injector, checked the wiring harness for continuity, and was at his wit’s end. After confirming his diagnostics were sound, we scoped the injector driver circuit directly at the ECM connector. The signal was dead. It’s a common failure point in these modules; the internal driver responsible for firing a specific injector or coil pack fails. We installed one of our pre-programmed ECMs, and the truck fired up perfectly, with a smooth idle and no codes. This isn’t just a part; it’s a targeted fix for these known electronic weak points.
Is Your Vehicle Showing These Symptoms?
A failing ECM can manifest in numerous ways. If you’re experiencing any of the following, this module is likely the solution you need. Look out for these common indicators:
- ✔ Persistent Check Engine Light (CEL)
- ✔ Diagnostic Trouble Codes (DTCs) related to internal module failure, such as P0601, P0606, or P062B.
- ✔ Communication errors with other modules (U-codes like U0100).
- ✔ Engine stalling, stumbling, or hesitating during acceleration.
- ✔ Unexplained drop in fuel mileage (MPG).
- ✔ Rough or erratic idle.
- ✔ Vehicle enters a no-start or “crank, no start” condition.
- ✔ Failure to pass state emissions testing.
A Straightforward Guide to Installation
Installing your new 2008-2009 Equinox ECM is a manageable job for a DIY enthusiast. By following these steps, you can avoid a costly trip to the dealership. Our pre-programming service eliminates the most difficult step.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow the system to fully discharge.
- Locate the Module: On the 2008-2009 Equinox, the ECM is found in the left-hand (driver’s side) of the engine compartment. For other models, refer to the fitment list for its specific location.
- Disconnect Connectors: Carefully release the locking tabs on the electrical wiring harness connectors and pull them straight out from the module. Never force them. Inspect the pins for any corrosion or damage.
- Remove the Old ECM: Unbolt the mounting hardware that secures the old ECM to its bracket or the vehicle body. Remove the old module.
- Install the New ECM: Mount your new, pre-programmed ECM in the same location and secure it with the original hardware.
- Reconnect Everything: Firmly plug the wiring harness connectors back into the new module until they click into place. Reconnect the negative battery terminal.
- Final Steps: Some vehicles may require a security relearn procedure, which can typically be done without special tools by cycling the key. Instructions can easily be found online for your specific model.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 12612384, 12622141, and 12617568. It is guaranteed to fit the following vehicles with the specified options. Please verify your model and engine to ensure proper fitment.
SIERRA 2500 PICKUP 08 Electronic Control Module; (LH front under battery), 6.0L
SUBURBAN 1500 08 Electronic Control Module; (LH front under battery)
AVALANCHE 1500 08 Electronic Control Module; (LH front under battery)
SUBURBAN 2500 08 Electronic Control Module; (LH front under battery)
TORRENT 08-09 Electronic Control Module; (LH engine compartment), 3.4L
VUE 08-09 Electronic Control Module; 3.5L
AURA 08 Electronic Control Module; (RH firewall), 3.5L
SIERRA 3500 PICKUP 08 Electronic Control Module; (LH front under battery), 6.0L
CTS 08 Electronic Control Module; (RH front engine compartment), (3.6L), VIN 7 (8th digit), ID 12612384
CAPRICE 11 Electronic Control Module; ID 12612384
SIERRA DENALI 08 Electronic Control Module; (LH front engine compartment)
ESCALADE EXT 08 Electronic Control Module; (LH front under battery)
EXPRESS 3500 VAN 08 Electronic Control Module; (LH rear engine compartment), gasoline
G6 08 Electronic Control Module; (LH front engine compartment), 3.5L
HUMMER H2 08 Electronic Control Module; (LH front under battery)
EXPRESS 1500 VAN 08 Electronic Control Module; (LH rear engine compartment), 5.3L
MALIBU 08 Electronic Control Module; classic style (emblem in grille), 3.5L
SAVANA 1500 VAN 08 Electronic Control Module; (LH rear engine compartment), 5.3L
CORVETTE 08 Electronic Control Module; (RH engine compartment)
CORVETTE 09 Electronic Control Module; (RH engine compartment), Z06
IMPALA 08 Electronic Control Module; (lower part of air cleaner box), 3.9L
SILVERADO 1500 PICKUP 08 Electronic Control Module; (LH front under battery), w/o 4.3L
YUKON 08 Electronic Control Module; (LH front under battery), w/o hybrid option
EXPRESS 2500 VAN 08 Electronic Control Module; (LH rear engine compartment), gasoline
SILVERADO 2500 PICKUP 08 Electronic Control Module; (LH front under battery), 6.0L
YUKON XL 2500 08 Electronic Control Module; (LH front under battery)
SILVERADO 3500 PICKUP 08 Electronic Control Module; (LH front under battery), 6.0L
G6 08 Electronic Control Module; (LH front engine compartment), 3.9L
SAVANA 3500 VAN 08 Electronic Control Module; (LH rear engine compartment), gasoline
SIERRA 1500 PICKUP 08 Electronic Control Module; (LH front under battery), w/o 4.3L
TAHOE 08 Electronic Control Module; (LH front under battery), w/o hybrid option
MALIBU 08 Electronic Control Module; new style (emblem in bumper cover), 3.5L
SAVANA 2500 VAN 08 Electronic Control Module; (LH rear engine compartment), gasoline
ESCALADE ESV 08 Electronic Control Module; (LH front under battery)
ESCALADE 08 Electronic Control Module; (LH front under battery)
IMPALA 08 Electronic Control Module; (lower part of air cleaner box), 3.5L
YUKON XL 1500 08 Electronic Control Module; (LH front under battery)
Frequently Asked Questions
Frequently Asked Questions
What does ‘programmed to my VIN’ mean?
It means we load the module with your vehicle’s exact software specifications from GM, including any anti-theft information and operational parameters. This makes the installation process much simpler, as it’s tailored to your car before you even receive it.
How do I provide my VIN number?
After you complete your purchase, you will receive instructions on how to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive this information.
Will I need to do any additional programming after installation?
In most cases, no programming is needed. However, some GM vehicles may require a simple security relearn procedure, which involves cycling the ignition key and does not require a scan tool. This procedure syncs the new ECM with your vehicle’s anti-theft system.
My old module has a different part number. Will this still work?
Yes. This module, 12617568, is the correct service replacement for part numbers 12612384 and 12622141. GM often consolidates part numbers as they release updated components.
Is this a reliable, long-term fix?
Absolutely. This module is tested to meet or exceed OEM specifications and is loaded with the newest stable software from the manufacturer, addressing many of the issues that caused the original part to fail. It’s the right way to fix your vehicle.