Is Your 2009 Buick Enclave, Acadia, or Traverse Running Erratically?
If your vehicle is suffering from a persistent check engine light, unexplained stalling, rough idling, or a sudden drop in fuel economy, the culprit is often a failing Engine Control Module (ECM). The ECM is the central computer of your vehicle’s engine, managing everything from fuel injection and ignition timing to emissions control. When it starts to fail, it can cause a cascade of frustrating and unpredictable problems, leaving you stranded and facing a costly repair bill from the dealership.
From the Diagnostic Bay
I remember a 2009 GMC Acadia that came into the shop with a ghost of a problem. The owner complained of intermittent stalling at stoplights and a check engine light that would come and go. We checked everything – sensors, wiring, fuel pressure – but couldn’t find a consistent fault. After hours of diagnostics, we connected a scope to the ECM’s outputs and saw the injector signals dropping out randomly. A new, programmed ECM was the fix. The owner was relieved to finally have a reliable vehicle again, and it highlighted just how critical a properly functioning ECM is to the entire system.
Common Symptoms of a Failing GM 3.6L ECM
- ✔ Persistent Check Engine Light (CEL) with various trouble codes.
- ✔ Engine stalling or shutting off unexpectedly while driving.
- ✔ Rough or unstable idle.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Difficulty starting the engine or a complete no-start condition.
- ✔ Poor acceleration and loss of power.
- ✔ Harsh or erratic shifting from the automatic transmission.
Why Choose Our Pre-Programmed 2009 Enclave Engine Control Module?
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the guesswork and extra expense out of the equation. When you order this 2009 Enclave Engine Control Module, we use the Vehicle Identification Number (VIN) you provide to flash the unit with the latest, most stable software updates directly from General Motors. This ensures that the module is perfectly matched to your vehicle’s specific configuration and options, just as it would be from the factory.
By pre-programming the module, we eliminate the need for a trip to the dealership and their expensive programming fees. This allows for a straightforward installation that can be performed by a competent DIY mechanic or your trusted local repair shop. Simply install the module, perform a simple security relearn procedure (instructions available online), and get your vehicle back on the road.
Guaranteed Compatibility and Fitment
This module is a direct replacement for several original equipment part numbers, including 12623325, 12628387, 12605672, 12630594, and 19300016. It is designed to fit a range of popular GM vehicles. Please verify your vehicle is on the list below to ensure proper fitment.
ACADIA 09 Electronic Control Module; (behind fan shroud)
STS 09 Electronic Control Module; (RH engine), (3.6L)
CTS 09 Electronic Control Module; (RH front engine compartment), 3.6L, VIN V (8th digit)
TRAVERSE 09 Electronic Control Module; (behind fan shroud)
OUTLOOK 09 Electronic Control Module; (behind fan shroud)
ENCLAVE 09 Electronic Control Module; (behind fan shroud)
STS 08 Electronic Control Module; (RH engine), 3.6L
Don’t let a faulty computer keep your vehicle off the road. Order our reliable, VIN-programmed 2009 Enclave Engine Control Module today and restore your vehicle’s performance and dependability.
Frequently Asked Questions
Do I need to program this ECM after I receive it?
No. This module arrives fully programmed to your vehicle’s specific VIN. We handle all the flashing with the latest GM software before it ships, saving you a trip to the dealer.
What information do you need from me?
After you complete your purchase, you will need to provide us with your vehicle’s 17-digit VIN. This is essential for us to program the module correctly for your specific car or SUV.
Where is the ECM located on my 2009 Enclave, Acadia, or Traverse?
On these specific GM Lambda platform SUVs (Enclave, Acadia, Traverse, Outlook), the ECM is typically located in the engine bay, mounted behind the radiator fan shroud.
Will this fix my check engine light?
If the check engine light and other symptoms are being caused by a faulty ECM, this part will resolve the issue. It’s crucial to ensure a proper diagnosis has been performed to confirm the ECM is the point of failure.
Is this a simple plug-and-play installation?
For the most part, yes. After physically installing the module, you may need to perform a simple security relearn procedure (also known as a PATS or Passlock relearn) to sync the new ECM with your vehicle’s anti-theft system. This procedure typically takes 10-30 minutes and does not require special tools.