Is Your Cadillac SRX Running Rough?
If you’re dealing with a persistent check engine light, unexplained stalling, rough idling, or a no-start condition, a failing Engine Control Module (ECM) is often the culprit. In my 20+ years as a technician, I’ve seen how a faulty ECM can send owners chasing expensive, unnecessary repairs. This isn’t just a part; it’s the brain of your engine, and when it fails, it can create a cascade of frustrating and confusing symptoms. This genuine, used OEM Engine Control Module is your direct, cost-effective solution to restore your vehicle’s performance and reliability.
The Smart Solution: Pre-Programmed & Ready to Install
Forget the dealership hassle and high costs. We take the complexity out of the repair. Simply provide your vehicle’s VIN (Vehicle Identification Number) at checkout, and our experts will program this module with the latest GM-certified software specific to your 2004-2006 SRX. It arrives at your door ready for a straightforward, plug-and-play installation. No additional programming or dealer visits are required.
From the Shop Floor: A Real-World Diagnosis
“A customer’s 2005 SRX came into my shop last month with a persistent P0304 code (Cylinder 4 Misfire). They had already replaced the spark plug, ignition coil, and even the fuel injector on that cylinder, but the misfire wouldn’t go away. After confirming fuel and spark were good, my experience pointed me to the ECM. The driver circuit inside the original module responsible for firing that specific injector had failed—a common issue on these units. We installed one of our pre-programmed ECMs, and the engine immediately smoothed out. The customer saved hundreds by not continuing to replace perfectly good parts.”
Common Symptoms of a Failing 2004-2006 SRX ECM
If your vehicle is experiencing any of the following, this module is the likely solution:
- ✔ Check Engine Light (CEL) is on with various communication or performance codes
- ✔ Engine cranks but refuses to start
- ✔ Noticeable decrease in fuel economy
- ✔ Rough or erratic engine idle
- ✔ Stalling or hesitation during acceleration
- ✔ Transmission shifting issues or harsh shifts
- ✔ Communication errors with diagnostic scan tools
Plug-and-Play Installation: No Dealer Visit Required
You can perform this replacement yourself with basic hand tools. Follow these simple steps to get your vehicle back on the road:
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the ECM: On the 2004-2006 SRX, the ECM is located in the right-hand (passenger side) front of the engine compartment.
- Disconnect and Remove: Carefully unplug the electrical connectors. Use a small flathead screwdriver to release the locking tabs if necessary. Then, unbolt the module from its mounting bracket.
- Install the New Module: Mount the new ECM and securely reconnect all electrical harnesses. Ensure they click into place.
- Final Step: Reconnect the negative battery terminal. Start the vehicle and allow it to idle for a few minutes to complete the relearn process.
Guaranteed Compatibility
This module is a direct replacement for several service part numbers, ensuring a perfect match for your vehicle. It is fully compatible with units bearing part numbers 19260507, 12581144, 12588472, and 12592124. It fits a wide range of GM vehicles equipped with the 3.6L engine, including:
- Cadillac SRX: 2004-2006 (3.6L)
- Cadillac CTS: 2004-2007 (Base)
- Buick Allure: 2005-2008 (3.6L)
- Buick LaCrosse: 2005-2008 (3.6L)
- Buick Rendezvous: 2004-2006 (3.6L)
Don’t let a faulty computer keep your Cadillac off the road. Order today, provide your VIN, and receive a reliable, ready-to-install solution that brings your engine back to life.