Is Your 2006 GM Vehicle Running Rough?
If you’re dealing with a frustrating check engine light, erratic engine behavior, or a no-start condition in your 2006 Chevrolet Uplander or another compatible GM vehicle, the root cause is often the Powertrain Control Module (PCM). As the central computer for your engine and transmission, when the PCM starts to fail, it can create a cascade of confusing and costly problems. I’ve seen it hundreds of times in my shop: a vehicle comes in with symptoms that seem to point everywhere, but the real culprit is a faulty module.
“A customer’s 2006 Uplander came in last week with these exact symptoms…”
The van would randomly stall at stoplights and had a harsh 1-2 shift that felt like being rear-ended. The owner had already replaced a couple of sensors with no luck. We hooked up our professional scan tool and found U-codes, indicating a communication breakdown. After verifying the PCM had good power and ground connectionsโa critical first stepโwe confirmed the module itself was failing internally. A failing PCM can send out bad data, making you think you have a sensor problem when you don’t. This is a classic scenario for these mid-2000s GM platforms.
Common Symptoms of a Failing PCM:
A failing PCM doesn’t always die completely. It often starts with intermittent issues that get progressively worse. Look out for:
- โ Check Engine Light (CEL) with communication codes (U-series) or multiple random sensor codes.
- โ Engine stalling, stumbling, or hesitating for no apparent reason.
- โ Harsh or erratic automatic transmission shifting.
- โ A complete no-start condition where the engine cranks but won’t fire up.
- โ Poor fuel economy and a noticeable loss of power.
- โ The security or anti-theft light may stay on, preventing the engine from starting.
The Direct, Reliable Solution: A VIN-Programmed PCM
This isn’t just a replacement part; it’s a complete solution. We take a genuine, tested Powertrain Control Module (service part number 19210070 / 12600928) and professionally program it to your vehicle’s specific Vehicle Identification Number (VIN). This is a critical step that many sellers skip.
Why is VIN programming so important? Your vehicle’s VIN contains specific information about its engine, transmission, and factory options. Flashing the module with your VIN ensures:
- โ Correct Functionality: The module operates exactly as GM intended for your specific build.
- โ Latest Software: We install the newest GM-released software updates, which often correct factory bugs and improve drivability and performance.
- โ Simplified Installation: You get a module that is ready for the final vehicle security relearn, saving you a costly and time-consuming trip to the dealership.
Installation is Straightforward
Once you receive your programmed module, the physical installation is as simple as disconnecting the battery, unplugging the electrical connectors from the old PCM, unbolting it, and installing the new one. After it’s installed and the battery is reconnected, you will need to perform a simple security relearn procedure, which can be done right in your driveway without any special tools. This typically involves turning the key to the ‘ON’ position for 10 minutes, then ‘OFF’ for 10 seconds, and repeating this cycle three times. This syncs the new PCM with your vehicle’s anti-theft system.
Guaranteed Fitment
This module is a direct replacement for service part numbers 19210070 and 12600928. Please verify your part number or consult the compatibility list below. This part will fit the following vehicles with the specified options:
- โ 2006 Pontiac G6 (Electronic Control Module; LH front engine compartment, ID 12600928)
- โ 2006-2007 Buick Rendezvous (Electronic Control Module; 3.5L)
- โ 2006 Chevrolet Uplander (Electronic Control Module; LH engine compartment, 3.5L)
- โ 2006 Pontiac Torrent (Electronic Control Module; LH engine compartment)
- โ 2006 Chevrolet Malibu (Electronic Control Module; 3.5L)
- โ 2006 Chevrolet Equinox (Electronic Control Module; LH engine compartment)
- โ 2006 Buick Terraza (Electronic Control Module; LH engine compartment, 3.5L)
- โ 2006 Pontiac Montana (Electronic Control Module; LH engine compartment, SV6, 3.5L)
After purchase, please send us your vehicle’s 17-digit VIN. We cannot ship your part until we have this information to complete the programming.