Is Your Cadillac DTS Running Rough? The ECM Might Be the Culprit.
If your 2006 Cadillac DTS is experiencing perplexing issues like a persistent check engine light, stalling, poor fuel economy, or a complete no-start condition, the problem may lie with a faulty Engine Control Module (ECM). As the central computer for your vehicle’s engine, the ECM is responsible for managing everything from fuel injection and ignition timing to emissions controls and transmission shifting. When it fails, it can cause a wide range of performance problems that can be difficult to diagnose.
This replacement Engine Control Module, part number 12630457, is the definitive solution to restore your vehicle’s performance and reliability. We take the guesswork and hassle out of the repair process. Unlike a generic module from a parts store, this unit is professionally programmed with the latest GM software specifically for your vehicle’s Vehicle Identification Number (VIN). This ensures perfect compatibility and function right out of the box, eliminating the need for an expensive trip to the dealership for programming.
From the Diagnostic Bay
We had a 2006 DTS in the shop that was driving the owner crazy. It would randomly stall at stoplights, the transmission would shift hard, and the check engine light would come on and off with a dozen different communication codes. We checked wiring, sensors, and grounds for days. On a hunch, we swapped in a known-good, programmed ECM. Instantly, all the problems vanished. The old ECM had an internal failure that was corrupting data on the vehicle’s network, causing chaos. A simple module replacement solved a problem that looked like a dozen different failures.
Symptoms of a Failing Engine Control Module
- ✔ Persistent Check Engine Light (CEL) illumination
- ✔ Engine stalling, stuttering, or misfiring
- ✔ Noticeable decrease in fuel efficiency
- ✔ Vehicle refuses to start, even with a good battery and starter
- ✔ Harsh or erratic automatic transmission shifting
- ✔ Loss of power and poor acceleration
- ✔ Communication errors when using a diagnostic scan tool
The Perfect Fit for Your 2006 DTS Engine Module and More
This module is a direct replacement for a wide variety of General Motors vehicles, ensuring OEM-level quality and fitment. It is a reliable alternative to service numbers 12590032, 12602044, 12603530, 12605843, 12607096, 12630457, and 19210737. Our simple process gets you back on the road fast: simply place your order, provide us with your vehicle’s VIN, and we will handle the programming before shipping the part directly to you. This is the most efficient way to get your car running right again.
Frequently Asked Questions
Why do you need my VIN to program the module?
Your vehicle’s VIN (Vehicle Identification Number) allows us to load the exact software and calibrations specified by GM for your car’s engine, transmission, and options. This ensures the 2006 DTS Engine Module communicates perfectly with all other systems in your vehicle, preventing compatibility issues.
Is this part difficult to install?
The physical installation is typically straightforward, involving disconnecting the battery, unplugging the electrical connectors, and unbolting the old module. However, after installation, some GM vehicles require a security relearn procedure (often called a Passlock or anti-theft relearn), which can usually be done without special tools. We recommend consulting a repair manual for your specific vehicle’s procedure.
Will this fix my check engine light?
If the check engine light is on due to a faulty ECM, this replacement part will solve the problem. However, it’s crucial to ensure the underlying cause of the failure (like a shorted sensor or wire) has been fixed first. A proper diagnosis is always recommended before replacing any computer module.
Is this a “plug and play” part?
Because we program it to your VIN, it is as close to plug-and-play as possible. It eliminates the need for dealer programming. As mentioned, a simple security relearn procedure may be required by your vehicle after you install it, which is a standard step for this type of repair on many GM models.
How do I find my original part number?
The part number is printed on a sticker on the case of your current ECM. You can compare it to the list of interchangeable service numbers in our description to confirm compatibility.