Programmed 2007 Escalade EXT Engine Control Module ECM 19210738 | VIN Matched

Restore Peak Performance and Reliability to Your GM Vehicle

Are you battling a persistent check engine light, rough idling, or mysterious stalling issues in your 2007 Cadillac Escalade EXT? These frustrating problems often point to one critical component: a failing Engine Control Module (ECM). As the ‘brain’ of your vehicle’s engine, the ECM governs everything from fuel mixture and ignition timing to transmission shifting. When it falters, the symptoms can be unpredictable and difficult to diagnose, leaving you stranded and facing a costly repair bill from the dealership.

I’ve spent countless hours in the service bay tracing bizarre electrical gremlins back to a faulty ECM. It’s the central command center, and any internal failure can send confusing signals throughout the vehicle. This isn’t just an inconvenience; it affects your vehicle’s safety, fuel economy, and emissions. That’s why we offer a straightforward, reliable solution. This replacement 2007 Escalade EXT Engine Control Module arrives at your door fully programmed with the latest GM software, specifically matched to your vehicle’s VIN. It’s a direct-fit part that eliminates the guesswork and the need for an expensive trip to the dealer for programming.

Common Signs of a Failing ECM

• ✔ Check Engine Light is illuminated, often with codes like P0601, P0606, or U0100.
• ✔ The engine cranks but refuses to start.
• ✔ Unexplained drops in fuel economy.
• ✔ The vehicle stalls unexpectedly while driving or at idle.
• ✔ Noticeable loss of power and poor acceleration.
• ✔ Harsh or erratic automatic transmission shifting.
• ✔ Failure to pass state emissions testing.

A Straightforward Guide to Installation

Installing your new 2007 Escalade EXT Engine Control Module is a manageable job for a confident DIYer or any professional technician. The key is our pre-programming service, which handles the most complex part of the job before the part even ships.

1. Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
2. Locate the ECM: On the 2007 Escalade EXT, the ECM is found on the left-hand (driver’s) side of the engine bay, located under the battery tray. You will need to remove the battery to gain access.
3. Disconnect and Remove: Carefully unplug the electrical connectors from the old module. Press the release tabs firmly and pull the connectors straight out. Then, unbolt the module from its mounting bracket and remove it from the vehicle.
4. Install the New Module: Mount the new ECM onto the bracket and securely fasten the bolts. Reconnect the electrical connectors, ensuring they click into place.
5. Perform Security Relearn: After reinstalling the battery, you may need to perform a security relearn procedure (often called a CASE relearn) so the vehicle recognizes the new ECM. This procedure typically involves turning the key to the ‘ON’ position for 10-15 minutes, then ‘OFF’ for 10 seconds, and repeating this cycle three times. Consult your vehicle’s service manual for the specific steps.
6. Start and Verify: Start the engine and check for any warning lights. Take the vehicle for a test drive to ensure all issues are resolved.

Verified Vehicle Compatibility

This module is a direct replacement for part number 19210738 and is interchangeable with 12589297, 12597121, and 12603892. It fits a wide range of GM vehicles, and we will program it specifically for the model you provide with your VIN.