Restore Peak Performance to Your GM Vehicle
Is your 2006 Buick Terraza, Chevy Equinox, or Pontiac G6 running rough, stalling unexpectedly, or showing a persistent check engine light? These are classic signs of a failing Powertrain Control Module (PCM), the central computer that manages your engine and transmission. A faulty PCM can lead to frustrating drivability issues, poor fuel economy, and even prevent your vehicle from starting. This replacement PCM, part number 12600928, is the reliable, straightforward solution you need to get your vehicle running smoothly again.
As a technician with over two decades of experience, I’ve seen how a bad engine computer can mimic a dozen other problems, costing owners time and money on unnecessary repairs. That’s why we offer this module fully programmed to your vehicle’s specific VIN. We install the latest GM software updates before it even leaves our facility, ensuring optimal performance and correcting potential factory flaws. This eliminates the need for an expensive trip to the dealership for programming, making it a perfect fix for both DIY mechanics and professional shops.
Case Study: A Tricky Diagnosis
I remember a 2006 Pontiac G6 with the 3.5L engine that came into the bay with intermittent stalling and hard shifting. The owner had already replaced the throttle body and a transmission solenoid based on generic advice, with no improvement. The scan tool showed a few communication codes (U-codes) but also a P0601 (Internal Control Module Memory Check Sum Error). While other issues can cause communication faults, a P0601 code is almost always a direct indictment of the PCM itself. We installed a VIN-programmed module, performed the security relearn, and the car ran perfectly. It’s a prime example of how starting with the vehicle’s brain can solve a host of confusing symptoms.
Is Your Vehicle Showing These Symptoms?
A failing PCM can cause a wide range of issues. If you’re experiencing any of the following, this module is likely the solution.
- ✔ Check Engine Light is on with codes like P0601, P0602, P0606, or other communication errors.
- ✔ The engine cranks but refuses to start.
- ✔ Unexplained stalling or rough idling.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ The vehicle fails to pass an emissions test.
A Straightforward Guide to Installation
Replacing your 2006 Terraza Powertrain Control Module is a manageable job for a confident DIYer. The pre-programming saves you the most complex step.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the system to fully discharge.
- 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 box.
- Disconnect Connectors: Carefully unlatch and remove the electrical wiring harnesses from the old module. Inspect them for any corrosion or damage.
- Remove the Old Module: Unbolt the old PCM from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed PCM and securely reconnect the wiring harnesses. Ensure they click into place.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Security Relearn: You will need to perform a simple key-cycle security relearn procedure. This typically involves turning the key to the ‘ON’ position for 10-15 minutes, then ‘OFF’, and repeating two more times. This allows the new PCM to recognize your vehicle’s anti-theft system.
Verified Vehicle Compatibility
This module is a direct-fit replacement for a wide range of GM vehicles. Please confirm your vehicle and engine options below. This part is a direct replacement for service numbers 12600928 and 19210070.
- ✔ 2006 Buick Terraza: Electronic Control Module; (LH engine compartment), 3.5L
- ✔ 2006-2007 Buick Rendezvous: Electronic Control Module; 3.5L
- ✔ 2006 Chevrolet Equinox: Electronic Control Module; (LH engine compartment)
- ✔ 2006 Chevrolet Malibu: Electronic Control Module; 3.5L
- ✔ 2006 Chevrolet Uplander: Electronic Control Module; (LH engine compartment), 3.5L
- ✔ 2006 Pontiac G6: Electronic Control Module; (LH front engine compartment), ID 12600928
- ✔ 2006 Pontiac Montana: Electronic Control Module; (LH engine compartment), (SV6), 3.5L
- ✔ 2006 Pontiac Torrent: Electronic Control Module; (LH engine compartment)
Don’t let a faulty computer keep your reliable GM off the road. This pre-programmed 2006 Terraza Powertrain Control Module is the definitive solution to restore your vehicle’s performance and peace of mind.
Frequently Asked Questions
Do I need to do anything after installing this PCM?
Yes. While the main programming is done for you, you must perform a standard GM security relearn procedure. This is a simple key-cycle process that typically takes about 30 minutes and requires no special tools. Instructions are readily available online for your specific model.
Is this a brand new part?
This is a high-quality, tested, and guaranteed functional OEM part. We flash it with the latest GM-approved software for your VIN, ensuring it meets or exceeds original factory specifications for performance and reliability.
Where do I find my VIN?
Your 17-digit Vehicle Identification Number (VIN) can be found on your vehicle’s registration, insurance card, or on a metal plate on the driver’s side dashboard, visible through the windshield.
Will this fix my transmission shifting problems?
In many cases, yes. The PCM controls both the engine and the transmission. If your shifting issues are caused by faulty electronic signals or logic from a failing PCM, this part will correct them. However, it will not fix internal mechanical failures within the transmission itself.
What if I have questions during installation?
We are committed to your success. Our team of experienced technicians is available to help guide you through the process and answer any questions you may have. Your satisfaction is our top priority.