Programmed 2006 XLR Engine Control Module ECM ECU 12607096

Is Your Cadillac XLR Running Rough? Restore Its Brainpower.

As an automotive technician with over two decades of experience under the hood, I’ve seen firsthand the frustration a failing Engine Control Module (ECM) can cause. Your 2006 Cadillac XLR is a sophisticated machine, and its ECM is the central command center. When it starts to fail, you’ll experience everything from a simple check engine light to baffling intermittent stalling, poor fuel economy, or a complete no-start condition that leaves you stranded. This isn’t just an inconvenience; it’s a critical failure that compromises your vehicle’s performance and reliability.

This isn’t just a replacement part; it’s a complete solution. We are offering a genuine GM Engine Control Module (interchangeable with part number 12607096) that comes professionally programmed to your vehicle’s specific VIN. This means we load the latest, most stable software updates from General Motors before it even ships. You get a module that’s ready for installation right out of the box, eliminating the need for expensive dealership programming or specialized scan tools. This is the most direct path to getting your XLR, or one of the many other compatible GM vehicles, running smoothly again.

Common Signs of a Failing ECM

If you’re experiencing any of the following, a faulty engine computer could be the culprit. I’ve diagnosed hundreds of these, and the symptoms are often consistent.

• ✔ Check Engine Light is illuminated with codes like P0601 (Internal Control Module Memory Check Sum Error), P0606 (ECM/PCM Processor Fault), or U0100 (Lost Communication With ECM/PCM).
• ✔ The engine cranks but refuses to start.
• ✔ Intermittent stalling or hesitation while driving.
• ✔ A noticeable drop in fuel efficiency.
• ✔ Rough idling or misfires.
• ✔ Transmission shifting problems or failure to go into gear.
• ✔ Issues with other electronic systems, as the ECM communicates with multiple modules.

A Straightforward Guide to Installation

Replacing the ECM on many of these vehicles is a job a confident DIYer can handle. While the exact location varies (see fitment list), the process is generally similar.

1. Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 15 minutes to allow all modules to power down completely.
2. Locate the ECM: On the 2006 XLR, the ECM is typically found in the right-hand front of the engine compartment. For other models, it might be on the firewall or near the air cleaner housing.
3. Disconnect Connectors: Carefully release the locking tabs on the electrical wiring harnesses and pull them straight out from the module. Never force them. Inspect the pins for any corrosion or damage.
4. Remove the Old Module: Unbolt the old ECM from its mounting bracket. Keep the hardware, as you may need to reuse it.
5. Install the New Module: Bolt your new, pre-programmed ECM into place.
6. Reconnect Everything: Firmly plug the wiring harnesses back into the new module until they click and lock. Reconnect the negative battery terminal.
7. Final Steps: In some cases, a security relearn procedure may be necessary, which can often be done without special tools (e.g., turning the key to ‘ON’ for 10-15 minutes). Consult your vehicle’s service information for specific steps.

Verified Vehicle Compatibility

This module, part number 12607096, is a direct replacement for a wide range of GM vehicles. It is interchangeable with service numbers 12590032, 12602044, 12603530, 12605843, 12630457, and 19210737. Please verify your model and options below to ensure a perfect fit.