Bring Your Vehicle Back to Life
Is your ride suffering from frustrating and unpredictable issues? A persistent check engine light, poor fuel economy, rough idling, or a no-start condition can often point to a failing Powertrain Control Module (PCM). This isn’t just an inconvenience; it’s a barrier to the reliable, confident driving experience you deserve. This replacement PCM, service number 12629019, is the definitive solution, arriving pre-programmed with the latest GM software specifically for your vehicle. Simply provide your VIN at checkout, and we’ll handle the complex programming, delivering a part that’s ready for a straightforward installation.
Warning Signs and How to Overcome Them
A faulty PCM can manifest in numerous ways. If you’re experiencing any of the following, it’s time to consider a replacement:
- ✔ Unexplained Check Engine Light with codes like P0601, P0602, P0606, or U-series communication codes.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ The engine cranks but refuses to start.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Stalling, stumbling, or poor engine performance.
- ✔ Communication issues with diagnostic scan tools.
Replacing your old module with our professionally programmed unit resolves these core issues, restoring your vehicle’s factory performance and giving you back that worry-free drive.
An Expert’s Diagnostic Tip
Before replacing your PCM, always perform a thorough check of your vehicle’s battery, terminals, and primary ground connections. A weak battery or a corroded ground wire can cause voltage drops that mimic PCM failure. Ensuring your electrical foundation is solid is a crucial first step that can save you time and money, confirming that the module itself is the root cause.
Effortless Steps for a Confident Fix
Installing your new PCM is a manageable task for a confident DIYer. While specific locations vary by model, the general process is straightforward. Here’s a guide to get you started:
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the Old PCM: On many vehicles like the Saturn SKY or Pontiac Solstice, the PCM is found on the LH front frame rail. On trucks like the Silverado, it’s often under the battery tray. Consult a vehicle-specific guide if you’re unsure.
- Disconnect Connectors: Carefully release the locking tabs and unplug the wiring harnesses from the old module. Inspect the connectors for any corrosion or damage.
- Remove the Module: Unbolt the old PCM from its mounting bracket.
- Install the New PCM: Mount your new, pre-programmed PCM in place and securely fasten it.
- Reconnect Everything: Plug the wiring harnesses back into the new module, ensuring they click securely into place. Reconnect your battery’s negative terminal.
- Final Steps: Depending on your vehicle, a security relearn procedure may be necessary. This often involves turning the key to the ‘ON’ position for 10-15 minutes. Start the engine and let it idle to allow the new module to sync with your vehicle’s systems.
Compatibility Check for Your 2008-2010 Saturn SKY PCM
This module is a direct replacement for multiple service numbers, including 12597125, 12612397, and 12629019. It is engineered to fit a wide range of General Motors vehicles. Please verify your model and engine combination below:
- Aura: 2008-2009 (2.4L)
- Cobalt: 2007-2010 (2.2L, 2.4L)
- Express 1500 Van: 2008-2009 (4.3L)
- G5 / G6: 2007-2010 (2.2L, 2.4L)
- HHR: 2007-2011 (2.2L, 2.4L)
- Impala: 2010-2011
- Lucerne: 2009-2011 (3.9L)
- Malibu: 2007-2012 (2.2L, 2.4L, 3.5L)
- Savana 1500 Van: 2008-2009 (4.3L)
- Sierra 1500 Pickup: 2007-2009 (4.3L)
- Silverado 1500 Pickup: 2007-2009 (4.3L)
- Sky: 2008-2010 (2.4L)
- Solstice: 2008-2010 (2.4L)
- Vue: 2008-2010 (2.4L)
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the programming for you. This PCM will arrive flashed with the latest GM software, tailored to your vehicle’s specific VIN. It is designed to be as close to a plug-and-play installation as possible.
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 your part until we receive this information, as it is essential for the programming process.
Is a security or CASE relearn required after installation?
In many cases, a simple key-cycle security relearn (leaving the key in the ‘ON’ position for 10-15 minutes) is all that’s needed. Some vehicles may require a Crankshaft Variation (CASE) relearn with a capable scan tool for optimal performance and to clear certain codes, but the vehicle will typically run and drive without it.
Will this fix my specific problem?
This module is a direct solution for internal PCM failures, indicated by codes like P0601 (Internal Control Module Memory Check Sum Error). While it resolves a wide array of issues, it’s important to ensure your vehicle’s wiring, sensors, and other components are in good working order, as they can sometimes cause similar symptoms.
What if I have another service number on my original part?
This unit is a compatible replacement for several service numbers, including 12612397, 12594750, 12597125, 12635902, and 12611549. As long as your vehicle is on the fitment list, this module will function correctly once programmed to your VIN.