2007 Sierra 1500 Engine Control Module 19210738 | Programmed to Your VIN

Restore Peak Performance to Your GM Truck or SUV

Is your 2007 Sierra 1500, Tahoe, or other compatible GM vehicle running rough, stalling unexpectedly, or showing a persistent Check Engine Light? These are classic signs that the brain of your engine—the Engine Control Module (ECM)—is failing. In my 20+ years of diagnostics, I’ve seen countless owners and shops chase phantom sensor codes and drivability issues, only to discover the root cause was a faulty ECM. This isn’t just an inconvenience; it affects fuel economy, emissions, and overall vehicle reliability.

This replacement Engine Control Module, part number 19210738, is the definitive solution. We take the guesswork and dealer hassle out of the repair. Before this module ships, we flash it with the latest GM-certified software specifically for your vehicle. All we need is your Vehicle Identification Number (VIN) at checkout. This ensures that when it arrives, it’s a true plug-and-play part, ready to restore your engine’s proper function without requiring an expensive trip to the dealership for programming.

Is Your Truck’s Brain on the Fritz? Common ECM Failure Symptoms

A failing ECM can cause a wide range of confusing symptoms. If you’re experiencing any of the following, this module is likely the solution you need. Look out for:

• ✔ Check Engine Light is illuminated with codes like P0601, P0602, P0606, or various U-codes (Communication Errors).
• ✔ The engine cranks but refuses to start.
• ✔ Unexplained drops in fuel efficiency.
• ✔ Engine stalling, stumbling, or hesitating during acceleration.
• ✔ Rough or erratic automatic transmission shifting.
• ✔ Apparent failure of multiple sensors at once.
• ✔ Failure to pass a state emissions inspection.

A Straightforward Guide to Installation

Replacing the 2007 Sierra 1500 Engine Control Module is a job most DIYers can handle. Since we program it beforehand, you won’t need any special scan tools for setup, though a security relearn procedure is typically required, which can be done without tools.

1. Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent accidental contact.
2. Locate the ECM: On most compatible trucks and SUVs like the Sierra or Tahoe, the ECM is located in the engine bay on the driver’s side, often under or near the battery tray.
3. Disconnect the Connectors: Carefully release the locking tabs on the wiring harness connectors and pull them straight out from the module. Avoid pulling on the wires themselves.
4. Remove the Old Module: Unbolt the old ECM from its mounting bracket. Keep the hardware as you will need it for the new module.
5. Install the New Module: Mount your new, pre-programmed ECM onto the bracket and secure it with the original hardware.
6. Reconnect Everything: Firmly plug the wiring harnesses back into the new ECM until they click into place. Reconnect the negative battery terminal.
7. Perform Security Relearn: Most GM vehicles of this era require a simple key-cycle security relearn. Turn the key to the ‘ON’ position for 10-15 minutes, then ‘OFF’ for 10 seconds. Repeat this process 3 times. On the fourth try, the vehicle should start and run normally.

Verified Fitment for Your GM Vehicle

This module is a direct replacement for part numbers 12589297, 12597121, 12603892, and 19210738. It is guaranteed to fit a wide range of GM models. Please verify your vehicle is on the list below. This is the correct 2007 Sierra 1500 Engine Control Module for models with the new body style (smooth door skin) and engines other than the 4.3L.

Frequently Asked Questions