Restore Your Vehicle’s Brain and Bring Back That Smooth, Reliable Drive
Is your car suffering from frustrating and unpredictable issues? A persistent check engine light, rough idling, stalling, or a complete no-start condition can often point to a failing Powertrain Control Module (PCM). This isn’t just an inconvenience; it’s a compromise on your vehicle’s performance, fuel economy, and your peace of mind. This module, part number 12635902, is the central command for your engine, and when it falters, the entire system suffers. We provide a dependable, direct-fit solution that arrives at your doorstep pre-programmed to your vehicle’s specific VIN, eliminating the need for expensive dealership visits and complex programming tools.
Warning Signs and How to Overcome Them
A failing PCM can manifest in numerous ways, often mimicking other sensor failures. Recognizing these symptoms is the first step toward a confident repair. This module is engineered to resolve these exact problems, restoring the precise communication your vehicle needs to run its best.
- ✔ Persistent Check Engine Light: Resolves stubborn diagnostic trouble codes (DTCs) like P0601, P0602, or P0606 related to internal module memory errors.
- ✔ Poor Engine Performance: Cures issues like rough running, misfires, and hesitation by restoring correct fuel and ignition timing.
- ✔ Reduced Fuel Economy: By optimizing engine parameters based on factory specifications, you can regain lost MPG.
- ✔ No-Start or Stalling: Fixes intermittent starting problems or sudden engine shut-offs caused by a faulty computer.
- ✔ Erratic Transmission Shifting: Restores smooth and predictable gear changes by re-establishing proper communication between the engine and transmission.
An Expert’s Story: The Diagnostic Dead End
“I once had a customer with a Chevy Malibu who had replaced nearly every sensor under the hood—O2 sensors, MAP sensor, you name it. The car still ran rough and threw random codes. He was at his wit’s end. We finally traced it to the PCM. The old unit was sending faulty signals, creating ‘ghost’ problems. Installing a correctly programmed PCM wasn’t just a fix; it was a huge relief for him. It solved a dozen problems at once and gave him his dependable daily driver back. That’s the power of getting the vehicle’s brain right.”
Guided Installation to Restore Peace of Mind
Installing your new 2008-2010 Solstice PCM is a straightforward process. We’ve taken care of the most complex part—the programming. Just follow these simple steps to get back on the road. Remember to always work with the battery disconnected for safety.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent any accidental reconnection.
- Locate the Old Module: Find your existing PCM. Its location varies by model but is often in the engine bay, under the battery tray, or attached to the air cleaner box.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be released. Once disconnected, unbolt the module from its mounting bracket and remove it from the vehicle.
- Install the New PCM: Mount your new, pre-programmed PCM in the same location and secure it with the original bolts. Reconnect the electrical harnesses, ensuring they click securely into place.
- Reconnect Power: Reattach the negative battery terminal and tighten it.
- Perform Security Relearn: Your vehicle may require a simple security relearn procedure to recognize the new module. This typically involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating a few times. Consult your owner’s manual for the specific sequence for your model.
Tailored Fit for Your Ride
This PCM is a direct replacement for service number 12635902 and is compatible with a wide range of GM vehicles. We program it using your VIN to ensure it matches your car’s exact configuration. Please verify your model and engine below:
- Pontiac Solstice: 2008-2010 (2.4L)
- Saturn Sky: 2008-2010 (2.4L)
- Chevrolet Malibu: 2007-2012 (2.2L, 2.4L, 3.5L)
- Chevrolet Cobalt: 2007-2010 (2.2L, 2.4L)
- Chevrolet HHR: 2007-2011 (2.2L, 2.4L)
- Chevrolet Silverado 1500: 2007-2009 (4.3L)
- GMC Sierra 1500: 2007-2009 (4.3L)
- Chevrolet Impala: 2010-2011
- Buick Lucerne: 2009-2011 (3.9L)
- Pontiac G6 / G5: 2007-2010
- Saturn Aura: 2008-2009 (2.4L)
- Saturn Vue: 2008-2010 (2.4L)
- Chevrolet Express 1500 Van: 2008-2009 (4.3L)
- GMC Savana 1500 Van: 2008-2009 (4.3L)
- …and other models using service numbers 12597125, 12612397, 12594750, 12629019, 12611549.
Frequently Asked Questions
Do I need to program this PCM?
No. We handle all the programming for you before shipment. Simply provide your vehicle’s VIN during checkout, and the module will arrive with the latest GM software, ready for installation.
What is a VIN and where do I find it?
The VIN (Vehicle Identification Number) is a unique 17-digit code for your car. You can find it on the driver’s side dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.
Will this fix my specific problem?
This module is a common solution for a wide range of electronic and performance issues, including specific PCM-related error codes. While it’s a very effective fix, we always recommend proper diagnostics to confirm the PCM is the root cause of your problem before ordering.
What is the security relearn procedure?
It’s a simple process that syncs the new PCM with your vehicle’s anti-theft system. For most GM vehicles, it involves a sequence of turning the key on and off for set intervals. This procedure does not require any special tools and instructions can easily be found online or in your owner’s manual.
Is this a guaranteed fix for my check engine light?
If the check engine light is caused by an internal failure of the PCM (like code P0601), then yes, this will resolve it. However, if the light is on due to a faulty sensor or another component, that separate issue will still need to be addressed.