Restore Peak Performance to Your Cadillac XLR
Is your 2006 Cadillac XLR suffering from frustrating issues like a persistent check engine light, rough idling, stalling, or a no-start condition? These are classic symptoms of a failing Engine Control Module (ECM), the central computer that manages your vehicle’s engine performance, fuel economy, and emissions. A faulty ECM can cripple your driving experience and lead to more significant problems if left unaddressed. This direct-fit replacement ECM, part number 12603530, is the definitive solution to restore your vehicle’s factory performance and reliability.
We had a 2008 Chevy Trailblazer come in with a bizarre, intermittent misfire on cylinder 3 that no one could solve. The owner had already replaced the coil, plug, and injector. Scopes showed the injector signal would just drop out randomly under load. After hours of tracing wires, we suspected the ECM. We swapped in a known-good programmed module, and the problem vanished instantly. The driver inside the original ECM responsible for that injector was failing under heat and load—a problem that only a direct module replacement could fix. It’s a reminder that sometimes the ‘brain’ itself is the source of the ghost in the machine.
The Plug-and-Play Solution for Your Vehicle
Don’t waste time and money on a trip to the dealership for expensive programming. We take the hassle out of the repair process. When you purchase this module, simply provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). Our technicians will then flash the unit with the latest, most up-to-date GM factory software specific to your exact vehicle configuration. This ensures that when the part arrives, it’s ready for installation right out of the box. It will correctly communicate with your car’s security system, transmission, and other onboard modules, making for a seamless and straightforward repair.
Symptoms a Failing 2006 XLR Engine Control Module Can Cause
- ✔ Persistent and illuminated Check Engine Light (CEL)
- ✔ Engine stalling or shutting off unexpectedly while driving
- ✔ Rough or erratic engine idle
- ✔ Noticeable decrease in fuel efficiency
- ✔ Hesitation or stumbling during acceleration
- ✔ Complete no-start or difficult starting conditions
- ✔ Failed emissions tests
- ✔ Communication errors with diagnostic scan tools
Guaranteed Compatibility
This Engine Control Module is a direct replacement for service number 12603530 and is also interchangeable with a wide range of other GM service numbers, including 12590032, 12602044, 12605843, 12607096, 12630457, and 19210737. It fits an extensive list of GM vehicles beyond the Cadillac XLR. Please verify the part number from your original module or consult our detailed fitment list to ensure perfect compatibility with your car, truck, or SUV.
Frequently Asked Questions
Do I need to do any programming after I receive this ECM?
No. This module comes fully programmed to your vehicle’s specific VIN. We handle all the flashing before it ships, so it’s ready for installation right out of the box. In some cases, a security or crank relearn procedure may be necessary, which can be done with a capable scan tool.
Where is the ECM located on a 2006 Cadillac XLR?
On the 2006 Cadillac XLR, the Engine Control Module is typically located in the right-hand (passenger side) front of the engine compartment. Always disconnect the battery before attempting to remove or install any electronic modules.
How do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your 17-digit VIN. You can typically find your VIN on your vehicle’s registration, insurance card, or on a plate on the driver’s side dashboard visible through the windshield.
Will this fix my specific problem?
This module will correct any issues directly caused by a faulty ECM. While the symptoms listed are common for ECM failure, it’s essential to have your vehicle properly diagnosed by a professional to rule out other potential causes like wiring, sensors, or mechanical issues.
Is this a new part?
This is a high-quality, fully tested replacement part that has been meticulously inspected and prepared to meet or exceed original equipment specifications, ensuring long-lasting reliability.