Restore Your Uplander’s Performance and Reliability

Is your 2008-2009 Chevrolet Uplander giving you headaches? Unexplained stalling, a persistent check engine light, or a complete failure to start can be incredibly frustrating, especially in a family vehicle you depend on. In my 20+ years as a diagnostic technician, I’ve seen these symptoms countless times, and they often point directly to a failing Engine Control Module (ECM). The ECM is the brain of your engine, and when it falters, the entire vehicle’s performance suffers. This isn’t just an inconvenience; it’s a safety concern.

This isn’t just a replacement part; it’s a complete solution. We offer a dependable Engine Control Module, part number 12607096, that comes fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). This crucial step ensures that the module communicates perfectly with your Uplander’s existing systems right out of the box. You get the latest software updates from GM without ever stepping foot in a dealership, saving you both time and significant expense on programming fees. This is the same process we use in the shop to guarantee a successful repair on the first try.

Common Signs Your Uplander’s ECM is Failing

If you’re experiencing any of the following issues, a faulty engine computer is a likely culprit. Don’t keep throwing parts at the problem; address the root cause.

• ✔ Check Engine Light: The most obvious sign, often with codes like P0601 (Internal Control Module Memory Check Sum Error) or P0606 (ECM/PCM Processor Fault).
• ✔ Engine Stalling or Misfiring: The engine may stall unexpectedly or run rough, as the ECM fails to correctly manage fuel and spark.
• ✔ No-Start Condition: The engine cranks but won’t start because the ECM isn’t activating the fuel pump or ignition coils.
• ✔ Poor Fuel Economy: An inefficiently running engine, managed by a faulty ECM, will consume more fuel than necessary.
• ✔ Transmission Shifting Issues: The ECM works with the transmission controller, and a failure can lead to harsh or erratic shifting.
• ✔ Failure to Communicate: Your mechanic’s scan tool may be unable to connect with the ECM, indicating a total failure.

A Straightforward Guide to Installation

This repair is well within the reach of a confident DIYer. The key is our pre-programming service, which removes the most complex step. For your 2008-2009 Uplander, the ECM is located in the left (driver’s side) engine compartment.

1. Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent accidental reconnection.
2. Locate the ECM: Open the hood and find the Engine Control Module on the driver’s side of the engine bay. It’s a metal box with large electrical connectors.
3. Disconnect 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 to install the new unit.
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 harness connectors back into the new module until they click into place. Reconnect the negative battery terminal.
7. Final Steps: In some cases, a security relearn procedure may be required. This can typically be done without special tools by cycling the key in the ignition. Instructions are readily available online for your specific model.

Verified Compatibility Across GM Models

While this is a perfect fit for the 2008-2009 Uplander, this versatile module (part #12607096) is also a direct replacement for service numbers 12590032, 12602044, 12603530, 12605843, 12630457, and 19210737, fitting a wide range of GM vehicles. Please verify your part number or match your vehicle in the list below.

Frequently Asked Questions