Programmed 2006 DTS Engine Control Module ECM ECU 12590032

Restore Your Cadillac’s Performance and Reliability

Is your 2006 Cadillac DTS experiencing frustrating and unpredictable issues like stalling, a persistent check engine light, or a complete no-start condition? These are classic signs that the brain of your vehicle, the Engine Control Module (ECM), may be failing. As a technician with over 20 years of experience, I’ve seen how a faulty ECM can turn a reliable luxury car into a source of constant headaches. This isn’t just a part; it’s the central command center that manages everything from fuel injection and ignition timing to transmission shifting. When it fails, the entire system suffers.

We offer a dependable and straightforward solution. This Engine Control Module is meticulously tested and programmed with the latest official GM software updates specifically for your vehicle’s VIN. This means you skip the expensive trip to the dealership for programming. You get a component that’s ready for installation, designed to restore the original performance, fuel efficiency, and smooth operation you expect from your Cadillac.

Is Your Cadillac Showing These Symptoms?

A failing ECM can manifest in many ways. If you’re noticing any of the following, it’s a strong indicator that your vehicle’s computer needs attention:

• ✔ Unexplained Check Engine Light illumination
• ✔ Engine stalling or shutting off while driving
• ✔ Complete no-start condition where the engine cranks but won’t fire
• ✔ Noticeable decrease in fuel economy
• ✔ Poor engine performance, hesitation, or rough idling
• ✔ Communication error codes, such as U0100 (Lost Communication with ECM/PCM)
• ✔ Internal module memory error codes like P0601 or P0605
• ✔ Seemingly unrelated warning lights appearing on the dash

A Straightforward Guide to Installation

Replacing your 2006 DTS Engine Control Module is a manageable job for a confident DIYer or any professional mechanic. Our VIN programming service makes it much simpler.

1. Safety First: Always disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent any accidental reconnection.
2. Locate the ECM: On the 2006 Cadillac DTS, the Engine Control Module is typically located in the engine compartment. Check for a silver box with multiple large electrical connectors.
3. Disconnect and Remove: Carefully release the locking tabs on the electrical connectors and pull them straight out. Avoid wiggling them side-to-side. Then, unbolt the module from its mounting bracket.
4. Install the New Module: Bolt the new, pre-programmed module into place. Firmly reconnect the electrical harnesses, ensuring they click and lock securely.
5. Reconnect Battery: Re-attach the negative battery terminal and tighten it.
6. Perform Security Relearn: Your vehicle’s anti-theft system needs to recognize the new ECM. This usually involves a simple key-on procedure (e.g., turn the key to ‘ON’ for 10-15 minutes, then ‘OFF’, and repeat 2-3 times). Consult your owner’s manual or a reliable online resource for the specific procedure for your vehicle.

Verified Vehicle Compatibility

This module is a direct replacement for service number 12590032 and is also interchangeable with part numbers 12602044, 12603530, 12605843, 12607096, 12630457, and 19210737. It is guaranteed to fit the following GM, Isuzu, and Saab vehicles: