Is your 2001-2002 Pontiac Montana experiencing frustrating issues like a persistent Check Engine Light, poor fuel economy, stalling, or erratic shifting? These are common indicators of a failing Powertrain Control Module (PCM), the central computer of your vehicle. A faulty PCM can disrupt engine performance, transmission function, and emissions systems, making your van unreliable. This replacement PCM, part number 12202600, is the definitive solution to restore your vehicle’s original performance and dependability.
Expert Pro Tip
Expert Pro Tip
Before replacing your PCM, always verify the integrity of your vehicle’s main power and ground connections. A corroded or loose ground strap, particularly the one from the engine block to the chassis, can mimic PCM failure by causing voltage drops and erratic sensor readings. A quick check with a multimeter can save you from a misdiagnosis.
Why Choose Our Pre-Programmed 2001-2002 Montana Powertrain Control Module?
The biggest hurdle in replacing a modern vehicle’s computer is the need for specialized programming. Our service eliminates this obstacle completely. When you purchase this module, we flash it with the latest GM-certified software updates specifically for your vehicle using the VIN you provide. This means the unit arrives at your door ready for a straightforward, plug-and-play installation. There’s no need for an expensive trip to the dealership or a specialized mechanic for programming. You are getting a component that is precisely matched to your Montana’s factory specifications, ensuring seamless communication between the engine, transmission, and other onboard systems.
Common Symptoms of a Failing PCM
- ✔ Persistent Check Engine Light (CEL) with various trouble codes.
- ✔ Unexplained drops in fuel efficiency.
- ✔ Engine stalling, stumbling, or misfiring.
- ✔ Harsh or delayed transmission shifting.
- ✔ The vehicle fails to start, even with a good battery and starter.
- ✔ Inconsistent or non-functional gauges on the instrument cluster.
- ✔ Failure to pass state emissions testing.
This module is a direct replacement for part numbers 12202600, 12209614, and 09360210. It is compatible with a wide range of GM vehicles from the early 2000s, including the Oldsmobile Silhouette, Chevrolet Venture, Buick Century, Pontiac Grand Am, and many others as detailed in our fitment list. By providing your VIN, you guarantee that the software loaded onto the module is the perfect match for your vehicle’s specific configuration, ensuring a reliable and lasting repair.
Frequently Asked Questions
Expert Pro Tip
Before replacing your PCM, always verify the integrity of your vehicle’s main power and ground connections. A corroded or loose ground strap, particularly the one from the engine block to the chassis, can mimic PCM failure by causing voltage drops and erratic sensor readings. A quick check with a multimeter can save you from a misdiagnosis.