Restore Your Minivan’s Reliability and Performance
Is your 2001-2002 Pontiac Montana suffering from frustrating issues like a persistent Check Engine Light, erratic shifting, or a no-start condition that leaves you stranded? These are classic signs of a failing Powertrain Control Module (PCM), the central computer of your vehicle. A faulty PCM can disrupt everything from fuel delivery to transmission control, making your vehicle unreliable and unsafe. This isn’t just an inconvenience; it’s a critical component failure that needs a dependable solution.
This replacement 2001-2002 Montana Powertrain Control Module is the definitive fix for these complex electrical problems. We take the guesswork and hassle out of the repair by programming the module specifically to your vehicle’s VIN before it ships. This means it arrives ready for installation, loaded with the latest GM software updates to ensure optimal performance and communication with other vehicle systems. Forget expensive dealership visits and programming fees; this is the straightforward, cost-effective solution to get your Montana running like new again.
From the Diagnostic Bay: The Phantom Misfire
I once had a 2002 Pontiac Montana in my shop with a random misfire code (P0300) that the owner had been chasing for months. He had replaced plugs, wires, and even the ignition coil pack, but the problem persisted. The engine would stumble intermittently, especially under load. After confirming the ignition and fuel systems were mechanically sound, I hooked up my professional scan tool to monitor the PCM data. I noticed the injector pulse width commands were erratic on multiple cylinders, a dead giveaway that the PCM’s internal driver circuits were failing. We installed a VIN-programmed module just like this one, performed the security relearn, and the misfire was gone for good. It’s a powerful reminder that sometimes the problem isn’t the parts being controlled, but the controller itself.
Common Signs of a Failing PCM
If you’re experiencing any of the following, a faulty PCM could be the culprit. Replacing it can restore your vehicle’s function and prevent further damage.
- ✔ Check Engine Light is on with codes like P0601, P0602, or P0606 (Internal Module Failure).
- ✔ The engine cranks but refuses to start.
- ✔ Unexplained stalling or rough idling.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ A noticeable decrease in fuel economy.
- ✔ Failure to pass an emissions inspection.
- ✔ Communication errors with diagnostic scan tools.
A Straightforward Guide to Installation
Installing your new PCM is a manageable job for a DIYer with basic tools. Following these steps will ensure a smooth process. This is a general guide; always consult a repair manual for your specific vehicle’s details.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the Module: On most 2001-2002 Montana models, the PCM is located in the engine compartment on the driver’s side, often attached to or near the air filter housing.
- Disconnect Connectors: Carefully unclip and remove the electrical wiring harnesses from the old PCM. These connectors have locking tabs that need to be released before pulling. Avoid forcing them.
- Remove Old PCM: Unbolt the mounting hardware that secures the old module to its bracket and remove it from the vehicle.
- Install New PCM: Mount the new, pre-programmed module in place and tighten the hardware. Reconnect the electrical harnesses, ensuring they click securely into place.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Security Relearn: You will need to perform a simple key-on/key-off procedure to sync the new PCM with your vehicle’s anti-theft system. This typically involves turning the key to the ‘ON’ position for 10-15 minutes, then ‘OFF’ for 10 seconds, and repeating two more times. Your vehicle should then start.
Verified Vehicle Compatibility
This module, part number 12202600, is a direct replacement for a wide range of GM vehicles. It is also compatible with part numbers 12209614 and 09360210. Please verify your vehicle is on the list below. Providing your VIN at checkout is required to guarantee a perfectly matched and programmed part.
- Pontiac Montana: 2001-2002
- Pontiac Aztek: 2001-2003 (check ID)
- Pontiac Grand Am: 2001-2003 (3.4L, check ID)
- Pontiac Grand Prix: 2001-2003 (3.1L, check ID)
- Chevrolet Venture: 2001-2003 (check ID)
- Chevrolet Impala: 2001-2003 (3.4L, check ID)
- Chevrolet Monte Carlo: 2001-2003 (3.4L, check ID)
- Chevrolet Malibu: 2001-2003 (check ID)
- Oldsmobile Alero: 2001-2003 (3.4L, check ID)
- Oldsmobile Aurora: 2001-2002 (3.5L, check ID)
- Oldsmobile Silhouette: 2001-2002 (check ID)
- Oldsmobile Intrigue: 2001-2002
- Buick Century: 2001-2002
- Buick Rendezvous: 2002-2003 (check ID)
- Buick Regal: 2000-2002 (check ID)
- Chevrolet Lumina Car: 2001
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) contains critical information about your vehicle’s specific options, engine, transmission, and emissions calibration. We use your VIN to load the exact, correct GM factory software onto your new 2001-2002 Montana Powertrain Control Module, ensuring it works perfectly right out of the box.
Is this part difficult to install?
The physical replacement is straightforward for most DIYers with basic tools. The most critical step after installation is the security relearn procedure, which does not require special tools and can be done in your driveway by following the included instructions.
Will this fix my ‘No Start’ problem?
A failed PCM is a very common cause of a ‘crank, no-start’ condition on these GM vehicles. If you’ve ruled out basic issues like the battery and fuel pump, there is a very high probability that this programmed module will resolve the issue.
What if my original part number is different?
This module is a direct replacement for several part numbers, including 12209614 and 09360210. As long as your vehicle is on our compatibility list, we will program this module to function identically to your original.
Is there a core charge?
This listing does not require a core charge. You can keep your old module, eliminating the hassle and expense of shipping it back.