Restore Your Cadillac’s Performance and Reliability
Is your 2006 Cadillac DTS or other GM vehicle experiencing frustrating issues like stalling, erratic shifting, a persistent Check Engine Light, or a complete no-start condition? These are classic signs of a failing Engine Control Module (ECM), the central computer that manages your vehicle’s engine performance, fuel delivery, and emissions. A faulty ECM can make your car unreliable and frustrating to drive. This isn’t just an inconvenience; it’s a critical component failure that needs a reliable solution.
This replacement Engine Control Module is the definitive fix for these problems. We take the guesswork and high costs out of the equation by pre-programming this module specifically for your vehicle using your VIN. This means it arrives at your door with the latest GM factory software updates already installed, ready for a straightforward installation. You get a component that restores original performance without the expensive trip to the dealership for programming.
A Technician’s Notebook: The Intermittent No-Start Puzzle
I once had a 2008 Chevy Impala in the bay that was a real head-scratcher. The customer complained of random no-start conditions—it would be fine for weeks, then suddenly refuse to crank. There were no consistent trouble codes, just a few sporadic U0100 (Lost Communication with ECM) codes stored in other modules. We checked the battery, starter, and wiring, and everything tested perfectly. The problem was, the car always started when it was in my shop. After two days of diagnostics, I noticed a tiny voltage drop at the ECM connector during a wiggle test. On a hunch, we swapped in a known-good, programmed ECM. The problem vanished instantly. The original module had an internal hairline fracture on the circuit board that would separate when the engine bay temperature changed just right, causing the intermittent failure. This case highlights why a quality, tested 2006 DTS Engine Control Module is crucial—it solves those ghost-in-the-machine problems that are nearly impossible to diagnose.
Common Signs of a Failing ECM
If your vehicle is exhibiting any of these symptoms, a failing Engine Control Module could be the culprit. Replacing it can restore your car’s functionality and your peace of mind.
- ✔ Check Engine Light is illuminated with codes like P0601, P0606, or P060A.
- ✔ Engine cranks but will not start.
- ✔ Poor or erratic engine performance and acceleration.
- ✔ Drastically reduced fuel economy.
- ✔ Intermittent stalling or cutting out while driving.
- ✔ Automatic transmission shifting issues or harsh shifts.
- ✔ Communication errors with other vehicle modules (U-codes).
- ✔ The cooling fans run constantly, even when the engine is cold.
A Straightforward Guide to Installation
Installing your new ECM is a job most DIYers can handle with basic tools. Our VIN programming makes it a plug-and-play process, but always follow proper safety procedures.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow all modules to power down completely.
- Locate the Old ECM: On the 2006 Cadillac DTS, the ECM is typically found in the engine compartment. The provided fitment list notes various locations for other models (e.g., under the air cleaner box, on the firewall).
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be released. Once disconnected, unbolt the module from its mounting bracket and remove it from the vehicle.
- Install the New Module: Mount your new, pre-programmed ECM onto the bracket. Reconnect the electrical connectors, ensuring they click securely into place.
- Reconnect Power: Reattach the negative battery terminal.
- Perform Relearn (If Necessary): In many cases, no further action is needed. However, some vehicles may require a security or crank-position sensor relearn procedure. This can often be done without special tools (consult your vehicle’s service manual) or by a local mechanic.
Verified Vehicle Compatibility
This module, part number 19210737, is a direct replacement for a wide range of GM vehicles and interchanges with service numbers 12590032, 12602044, 12603530, 12605843, 12607096, and 12630457. Please verify your vehicle from the list below to ensure proper fitment. Providing your VIN at checkout guarantees we send the correctly programmed module.
Fits select models of: Acadia, Allure, Ascender, Aura, Canyon, Cobalt, Colorado, CTS, Deville, DTS, Enclave, Envoy, G6, Grand Prix, H3, HHR, I-290, I-370, Impala, Ion, LaCrosse, Lucerne, Malibu, Monte Carlo, Montana, Outlook, Pursuit, Rainier, Relay, Saab 9-7X, Solstice, SRX, STS, Terraza, Trailblazer, Uplander, Vue, and XLR from approximately 2005-2010. Please use the detailed compatibility list provided on this page or contact us with your VIN to confirm.
Frequently Asked Questions
2006 DTS Engine Control Module
Will this fix my car’s specific problem?
This module is a direct solution for a failed ECM. If your vehicle has been properly diagnosed with a faulty or related part number, this part will resolve the associated issues like no-start, poor performance, and specific diagnostic trouble codes.