Restore Your Vehicle’s Brain and Get Back on the Road
If you’re dealing with baffling issues like a persistent Check Engine Light, erratic engine performance, or transmission problems in your GM vehicle, the culprit is often the Powertrain Control Module (PCM). As a technician with over 20 years of experience, I’ve seen firsthand how a failing PCM can cause a cascade of frustrating, hard-to-diagnose symptoms. This isn’t just a component; it’s the central command center for your engine and transmission. A faulty one can leave you stranded.
This replacement Powertrain Control Module, part number 12600928, is the definitive solution. We take the guesswork and high costs out of the repair. Before we ship it, we program the module with the latest GM-certified software updates, specifically matched to your vehicle’s VIN. This means you receive a part that is truly plug-and-play, eliminating the need for an expensive trip to the dealership for programming. Installing a reliable, correctly flashed 2006-2007 Rendezvous PCM is the most critical step to restoring your vehicle’s performance, fuel efficiency, and dependability.
A Technician’s Notebook: The Intermittent No-Start
I remember a 2006 Pontiac G6 that came into the shop with a ghost of a problem. It would start fine for a week, then refuse to crank for two days, with no rhyme or reason. The owner had already replaced the battery and starter. After connecting my scan tool, I noticed intermittent communication loss with the PCM—a classic sign. The module wasn’t completely dead, but the internal processor was failing under certain temperature conditions. We installed a VIN-programmed PCM, and the problem never returned. It’s a textbook example of how a failing computer can mimic mechanical issues, and why a quality, correctly programmed module is non-negotiable.
Is Your Vehicle Showing These Signs of PCM Failure?
- ✔ Persistent Check Engine Light (CEL) that won’t clear.
- ✔ Diagnostic Trouble Codes (DTCs) related to internal module failure, such as P0601, P0606, or U0100 (Lost Communication with ECM/PCM).
- ✔ Unexplained engine stalling, sputtering, or rough idling.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ The engine cranks but refuses to start (no-start condition).
- ✔ A noticeable drop in fuel economy.
- ✔ Failure to pass state emissions testing.
Your Straightforward Installation Guide
Replacing your 2006-2007 Rendezvous PCM is a manageable job for a DIYer with basic tools. Follow these steps carefully for a successful installation.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent accidental reconnection.
- Locate the PCM: On most of these GM models, the PCM is located in the engine compartment, typically on the driver’s side near the air filter housing. It’s a silver metal box with several large electrical connectors.
- Disconnect Wiring: Carefully release the locking tabs on each electrical harness connector and pull them straight out from the module. Never force them. Some connectors have levers or slides that must be moved to unlock them.
- Remove the Old Module: Unbolt the PCM from its mounting bracket. Keep the hardware in a safe place, as you may need to reuse it.
- Install the New Module: Mount your new, pre-programmed PCM onto the bracket and secure it with the original hardware.
- Reconnect Wiring: Firmly press each wiring harness connector back into the corresponding socket on the new module until you hear or feel it click into place. Ensure all locking tabs are fully engaged.
- Final Step: Reconnect the negative battery terminal. The vehicle may require a security relearn procedure, which typically involves turning the key to the ‘ON’ position for 10-15 minutes. Consult your owner’s manual for the specific procedure for your vehicle.
Verified Compatibility for Your Vehicle
This module is a direct-fit replacement for several GM vehicles. Please verify your model and engine options below. This part is a direct replacement for service numbers 12600928 and 19210070.
- Buick Rendezvous: 2006 (3.5L), 2007 (3.5L)
- Buick Terraza: 2006 (3.5L)
- Chevrolet Equinox: 2006
- Chevrolet Malibu: 2006 (3.5L)
- Chevrolet Uplander: 2006 (3.5L)
- Pontiac G6: 2006 (with matching ID 12600928)
- Pontiac Montana: 2006 (SV6, 3.5L)
- Pontiac Torrent: 2006
This is the correct fix for your vehicle’s electronic control issues. By ordering a professionally programmed 2006-2007 Rendezvous PCM, you’re not just buying a part—you’re buying a reliable solution that restores your vehicle’s core functions and gives you peace of mind.
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the programming before shipping. We use your vehicle’s VIN to load the latest GM software, so it arrives ready for installation.
Where do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship the part until we receive this information.
Is this a simple plug-and-play installation?
Yes, for the most part. Once programmed to your VIN, the module is designed to be installed without special tools. However, some vehicles may require a security relearn or crankshaft position sensor relearn procedure after installation, which can often be done without a scan tool.
Will this fix my transmission shifting problems?
In many cases, yes. The PCM controls both engine and transmission functions. If the module is faulty, it can cause poor shifting, hesitation, and other transmission-related symptoms. This part often resolves those issues.
What if my part number doesn’t match exactly?
This module, 12600928, also replaces service number 19210070. As long as your vehicle is on the compatibility list, this module is the correct, updated replacement for your application.