If you’re dealing with frustrating engine problems in your 2006 Chevrolet Uplander—like a persistent Check Engine light, rough idling, stalling, or a no-start condition—a failing Engine Control Module (ECM) is a very likely culprit. As the central computer of your vehicle, a faulty ECM can cause a wide range of confusing issues. This isn’t just an inconvenience; it affects your vehicle’s reliability, fuel economy, and safety. I’ve seen countless vehicles in my shop with these exact symptoms, and a direct-fit, properly programmed ECM is often the definitive solution.
This isn’t just a generic, off-the-shelf part. We offer a complete, ready-to-install solution. When you order, you’ll provide your vehicle’s VIN. Our technicians will then program this ECM with the latest, most stable software updates directly from GM. This VIN-matching service ensures the module communicates perfectly with your Uplander’s specific systems, from the transmission to the anti-lock brakes. You get a part that is functionally identical to what a dealership would install, but without the high cost and hassle of scheduling a separate programming appointment.
Case Study: A Tricky Diagnosis
A customer brought in their 2006 Uplander with an intermittent stalling problem that no one else could figure out. It would run fine for days, then suddenly die at a stoplight. There were no consistent trouble codes, just a random U0100 (Lost Communication With ECM/PCM) that would pop up occasionally. After verifying the wiring and power/ground circuits to the ECM were solid, we suspected an internal failure in the module itself, likely a hairline crack in a circuit board that would separate when it got hot. We installed one of our VIN-programmed ECMs, and the problem was solved instantly. The customer was thrilled to have their reliable family vehicle back on the road.
Is Your Van Showing These Symptoms?
A failing ECM can manifest in many ways. If you’re experiencing any of the following, this module is the likely fix you need.
- ✔ Persistent Check Engine Light (CEL) that won’t clear.
- ✔ Diagnostic Trouble Codes (DTCs) related to internal module failure, such as P0601, P0606, or P062F.
- ✔ Communication errors with scan tools, often indicated by U-codes like U0100.
- ✔ Unexplained drop in fuel efficiency.
- ✔ Engine misfires, rough running, or hesitation during acceleration.
- ✔ Intermittent or complete no-start conditions where the engine cranks but won’t fire.
- ✔ Erratic transmission shifting or failure to shift.
A Straightforward Guide to Installation
Installing your new 2006 Uplander Engine Control Module is a manageable job for a DIYer with basic tools. In most cases, a security relearn procedure is required after installation, which can be done without special tools. Always consult a repair manual for your specific vehicle, but here are the general steps:
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the ECM: On the 2006 Uplander, the ECM is typically found in the engine compartment on the driver’s side, often near the air filter housing or firewall.
- Disconnect Connectors: Carefully release the locking tabs and unplug the wiring harness connectors from the old ECM. Inspect the connectors for any corrosion or damage.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket and remove it from the vehicle.
- Install the New ECM: Mount your new, pre-programmed ECM onto the bracket and secure the bolts.
- Reconnect Everything: Plug the wiring harnesses firmly back into the new module until they click into place. Reconnect the negative battery terminal.
- Perform Security Relearn: You will likely need to perform a security relearn procedure. A common GM method is the “10-Minute Relearn,” which involves turning the key to the ‘ON’ position for 10 minutes, then off, and repeating two more times before starting the engine.
Verified Vehicle Compatibility
This ECM, part number 12602044, is a direct replacement for a wide range of GM vehicles. It is interchangeable with service numbers 12590032, 12603530, 12605843, 12607096, 12630457, and 19210737. Please verify your vehicle is on the list below to ensure proper fitment. Our VIN programming service tailors this module specifically to your car’s options.
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) is essential. It allows us to program the Engine Control Module with the exact software and calibrations for your 2006 Uplander’s specific engine, transmission, and emissions equipment. This ensures seamless integration and optimal performance right out of the box.
Is any additional programming required after installation?
No. This ECM comes fully programmed to your VIN with the latest GM updates. The only step you may need to perform is a security relearn procedure (often called a Passlock or anti-theft relearn), which pairs the module to your key. This procedure can typically be done in your driveway without any special tools.
Is this a brand new part?
This is a high-quality, fully tested, and guaranteed OEM component. Each unit is inspected and programmed by our expert technicians to meet or exceed original factory specifications, ensuring reliability and longevity for your vehicle.
Will this fix my transmission shifting problems?
In many cases, yes. The ECM works directly with the Transmission Control Module (TCM) to manage shift points and behavior. If the ECM is sending faulty data, it can cause poor shifting. Replacing a bad 2006 Uplander Engine Control Module often resolves these related transmission symptoms.
What if I have questions during installation?
We are committed to your success. Our team of experienced automotive professionals is available to provide support and answer any questions you may have about the installation or relearn process. Your purchase is backed by our expertise.