Is Your Cadillac CTS Running Rough, Stalling, or Showing a Check Engine Light?
If you’re dealing with frustrating engine problems in your Cadillac, a faulty Engine Control Module (ECM) is often the culprit. As a mechanic with over two decades of experience, I’ve seen how a failing ECM can cause a cascade of issues that are tough to diagnoseโfrom poor fuel economy and erratic shifting to a complete no-start situation. You don’t have to put up with the guesswork or pay exorbitant dealership prices for a solution. This is a reliable, tested, and pre-programmed ECM that gets you back on the road with confidence.
A Real-World Scenario: The Hard-to-Trace Misfire
“A customer’s 2005 CTS came into the shop last month with an intermittent misfire and a persistent P0300 (Random/Multiple Misfire Detected) code that just wouldn’t clear. They had already spent a small fortune replacing spark plugs, ignition coils, and even an oxygen sensor at another shop. After hooking up my diagnostic scanner and monitoring live data, I noticed the fuel trim on Bank 2 was completely erratic. The issue wasn’t the mechanical parts; the driver circuit inside the original ECM was failing under load, causing inconsistent injector pulses. We swapped in one of our pre-programmed ECMs, performed the security relearn, and the car ran perfectly. This simple swap saved the customer from more wasted time and money on unnecessary parts.”
Why Choose Our Pre-Programmed 2004-2007 CTS ECM?
This isn’t just a used part pulled from a car. It’s a complete solution. We take a thoroughly tested, genuine GM ECM and flash it with the latest official software updates from General Motors. By programming it directly to your vehicle’s unique Vehicle Identification Number (VIN) before it ships, we eliminate the most difficult part of the repair.
- โ VIN-Programmed for Your Vehicle: We load your car’s specific VIN and software, ensuring perfect communication with the BCM, TCM, and other onboard systems.
- โ No Dealer Visit Required: Save hundreds of dollars and the headache of scheduling an appointment. This module arrives ready for installation.
- โ Latest GM Software Updates: Your ECM will be flashed with the most current calibrations, which can resolve factory bugs and improve performance and efficiency.
- โ Cost-Effective and Reliable: Get the functionality of a new module without the high cost. Each unit is sourced from a salvaged vehicle and rigorously tested.
Simple Installation Process
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the ECM: On the 2004-2007 Cadillac CTS, the ECM is located in the engine compartment on the passenger’s side (RH side), near the firewall.
- Swap the Modules: Carefully unplug the wiring harness connectors from the old ECM. Unbolt it and remove it from the vehicle. Install the new module in its place and securely reconnect the wiring harnesses.
- Reconnect Battery: Re-attach the negative battery terminal.
- Perform Security Relearn: You will likely need to perform a simple security relearn procedure so the new ECM can sync with your vehicle’s anti-theft system. This typically involves turning the key to the ‘ON’ position for 10-15 minutes, then ‘OFF’, and repeating two more times. Your vehicle’s manual will have the exact steps.
Guaranteed Compatibility
This ECM, part number 12592124, is a direct replacement for several service numbers. Please verify your part number or contact us with your VIN to confirm fitment. This module is compatible with the following vehicles and options:
- Cadillac CTS: 2004-2006 (Base, ID 12592124 or 19260507), 2007 (Base)
- Cadillac SRX: 2004-2006 (3.6L)
- Buick Allure: 2005-2008 (3.6L)
- Buick LaCrosse: 2005-2008 (3.6L)
- Buick Rendezvous: 2004-2005 (ID 19260507), 2006 (3.6L)
Compatible Service Part Numbers: 12581144, 12588472, 12592124, 19260507
IMPORTANT: After completing your purchase, you MUST send us a message with your 17-digit VIN. We cannot program and ship your ECM without this information. Take the final step in restoring your vehicle’s proper function and order today!