Programmed 2006 Uplander Engine Control Module ECM 12603530

Restore Peak Performance to Your 2006 Chevrolet Uplander

Is your Chevrolet Uplander or other GM vehicle suffering from frustrating, hard-to-diagnose issues? A faulty Engine Control Module (ECM) is often the culprit behind poor performance, random stalling, and a persistent check engine light. As the ‘brain’ of your vehicle, the ECM governs everything from fuel mixture and ignition timing to transmission shifting. When it fails, it can cause a cascade of problems that leave you stranded. This isn’t just an inconvenience; it’s a matter of reliability and safety.

This replacement Engine Control Module is your direct-fit, hassle-free solution. We take the guesswork and extra expense out of the repair by programming the module specifically to your vehicle’s VIN before it ships. This means it arrives loaded with the latest GM factory software updates, ready for a straightforward installation. You get a reliable part that restores factory function without the need for an expensive trip to the dealership for programming.

Common Signs of a Failing Engine Computer

If you’re experiencing any of these symptoms, a failing ECM could be the root cause. Don’t let these issues get worse; a faulty module can lead to further component damage.

• ✔ Check Engine Light is on with codes like P0601, P0606, or other processor faults.
• ✔ Vehicle refuses to start or has difficulty starting.
• ✔ Unexplained drop in fuel economy.
• ✔ Engine stalling, stuttering, or misfiring while driving.
• ✔ Rough or unpredictable automatic transmission shifting.
• ✔ Loss of communication with the scan tool.

A Straightforward Guide to Your ECM Replacement

Replacing the 2006 Uplander Engine Control Module is a job many DIYers can handle. While the exact location varies by model (as seen in the fitment list), the general process is similar. For the Uplander, it’s typically found in the LH engine compartment.

1. Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
2. Locate the ECM: On the 2006 Uplander, find the module in the left-hand (driver’s side) of the engine compartment. It will have several large electrical connectors attached.
3. Disconnect Connectors: Carefully release the locking tabs on each wiring harness connector 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 may need to reuse it.
5. Install the New Module: Mount your new, pre-programmed ECM in place and secure it with the original bolts.
6. Reconnect Everything: Plug the wiring harness connectors firmly back into the new module until they click into place. Reconnect the negative battery terminal.
7. Final Steps: Your vehicle may require a security relearn procedure, which can often be done by cycling the key. Consult your owner’s manual for specific instructions. Start the engine and verify that the check engine light is off and the vehicle runs smoothly.

Will This Fit My Vehicle? Verified Compatibility

This ECM, part number 12603530, is a direct replacement for a wide range of General Motors vehicles. It is interchangeable with service numbers 12590032, 12602044, 12605843, 12607096, 12630457, and 19210737. Please verify your vehicle from the list below to ensure proper fitment.