Is Your Cadillac SRX Running Rough, Stalling, or Showing a Check Engine Light?
As a technician with over two decades of experience under the hood, I’ve seen firsthand how a failing Engine Control Module (ECM) can bring a perfectly good vehicle to a grinding halt. If your 2009 Cadillac SRX is experiencing frustrating issues like erratic idling, poor fuel economy, a no-start condition, or persistent diagnostic trouble codes that won’t go away, the ECM is often the culprit. It’s the brain of your engine, and when it fails, the entire system suffers. This isn’t just an inconvenience; it’s a critical failure that needs a reliable solution.
The Direct Solution: A VIN-Programmed 2009 SRX Engine Control Module
Forget expensive dealership visits and the hassle of finding a local shop with the right programming equipment. We offer a straightforward, effective solution. This Engine Control Module, part number 12628911, is professionally programmed to your vehicle’s specific Vehicle Identification Number (VIN) before it ever leaves our facility. We install the latest, most stable software updates from GM, ensuring your engine operates at its peak efficiency and reliability from the moment you plug it in.
Expert Pro Tip: Check for the Root Cause Before Installation
Before you install your replacement ECM, it’s absolutely critical to find out what caused the original one to fail. In my shop, I’ve seen countless ECMs damaged by external electrical faults. A common one on these GM platforms is a shorted ignition coil or a failing fuel injector. A simple check with a multimeter on the coil’s primary circuit or the injector’s resistance can save you from damaging the new module. Replacing the ECM without fixing the underlying issue is a recipe for a repeat failure.
Key Symptoms of a Failing ECM:
- โ Persistent Check Engine Light (CEL)
- โ Engine stalling or misfiring unexpectedly
- โ Vehicle refuses to start, even with a good battery and starter
- โ Noticeable decrease in fuel efficiency
- โ Poor or hesitant acceleration
- โ Communication errors with diagnostic scan tools
Plug-and-Play Installation: No Dealer Visit Required
We’ve made this process as simple as possible. Because the module arrives programmed specifically for your 2009 SRX, you won’t need to pay for towing or expensive dealer programming services. While professional installation is always recommended, here is a general guide to the process:
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the ECM: On the 2009 SRX, the ECM is typically found in the engine compartment on the driver’s side (LH).
- Disconnect Connectors: Carefully unclip the wiring harness connectors from the old module. Inspect the pins for any corrosion or damage and clean them if necessary.
- Remove the Old Module: Unbolt the original ECM from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed ECM in place and securely fasten the bolts.
- Reconnect Everything: Firmly plug the wiring harnesses into the new module until they click. Reconnect the negative battery terminal.
- Perform Relearn (If Necessary): In some cases, a security or crank variation relearn procedure may be required, which can be initiated with many professional-grade scan tools.
Guaranteed Fitment & Compatibility
This module is a direct replacement for a wide range of GM vehicles. Simply provide your VIN at checkout, and we’ll handle the rest. This unit is fully interchangeable with the following OEM service numbers:
12636659, 12639300, 1263605, 12628993, 12628911, 12625453, 12622175, 12630464, 12678512
While this listing is focused on the 2009 SRX 4.6L, this ECM also fits many other models, including the Cadillac CTS, STS, DTS, Corvette, Chevy Colorado, Trailblazer, GMC Envoy, Canyon, Hummer H3, and more. Trust in a part that is verified to work with your vehicle’s specific systems.