Restore Your Vehicle’s Brain and Get Back on the Road with Confidence
If you’re dealing with frustrating, intermittent issues like your 2001-2003 Oldsmobile Alero stalling, shifting erratically, or refusing to start, the problem often lies with a failing Powertrain Control Module (PCM). As the central computer for your engine and transmission, a faulty PCM can cause a cascade of confusing problems. This isn’t just a replacement part; it’s a comprehensive solution. We provide a high-quality replacement PCM, part number 09360210, that comes fully programmed to your vehicle’s specific VIN with the latest GM software updates. This eliminates the need for an expensive trip to the dealership for programming, saving you both time and money.
From the Diagnostic Bay: The Ghost in the Machine
I remember a 2002 Pontiac Grand Am with the 3.4L V6 that came into my shop. The owner was at his wit’s end. The car would run perfectly for days, then suddenly stall at a red light or refuse to shift out of first gear. He had already replaced the spark plugs, ignition coils, and even a transmission solenoid based on various codes that popped up. The problem was, the codes were inconsistent. After running a full diagnostic sweep and finding no conclusive mechanical faults, I focused on the PCM. On these GM platforms, I’ve seen internal circuit board failures cause exactly this kind of phantom behavior. We installed a VIN-programmed PCM, and the car ran flawlessly. It wasn’t a ghost; it was a failing computer that was sending bad signals. This 2001-2003 Alero PCM is the same reliable fix for that exact type of problem.
Is Your Vehicle Showing These Telltale Symptoms?
A failing PCM doesn’t always result in a simple Check Engine Light. It can manifest in ways that mimic other component failures. Here are the common signs I’ve seen in my 20+ years of experience:
- ✔ Unexplained Check Engine Light (CEL) with codes like P0601, P0602, or P0606.
- ✔ Engine stalling, sputtering, or running rough.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Complete no-start condition where the engine cranks but won’t fire.
- ✔ Decreased fuel economy for no apparent reason.
- ✔ Communication errors with diagnostic scan tools.
- ✔ Intermittent failure of multiple electronic systems.
A Straightforward Guide to Installation
Because this module arrives programmed, the physical installation is something a confident DIYer can handle. The most common step after installation is a simple security relearn procedure, which does not require a special scan tool.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait 10-15 minutes to allow all systems to discharge.
- Locate the PCM: On the Alero and Grand Am, the PCM is typically located inside the vehicle, on the left (driver’s side) of the center dash console, often accessible by removing a lower kick panel. On other GM models like the Impala or Century, it’s usually in the engine compartment on the driver’s side, often near the air filter box.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be released. Once disconnected, unbolt the old module from its mounting bracket.
- Install the New Module: Bolt the new PCM into place and securely reconnect the electrical harnesses. Ensure they click into place.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Security Relearn: This is a critical step. Attempt to start the car. It will likely crank but not run, and the ‘Security’ light will be on or flashing. Turn the key to the ‘ON’ position (do not start) and leave it for 10-12 minutes, or until the security light goes out. Turn the key off for 10 seconds, then the vehicle should start and run normally.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 09360210, 12209614, and 12202600. It is guaranteed to fit the following GM vehicles. Please provide your VIN upon purchase to ensure perfect programming.
- ✔ 2001-2003 Oldsmobile Alero (3.4L)
- ✔ 2001-2003 Chevrolet Impala (3.4L)
- ✔ 2001-2003 Pontiac Grand Am (3.4L)
- ✔ 2001-2003 Chevrolet Monte Carlo (3.4L)
- ✔ 2001-2003 Pontiac Montana
- ✔ 2001-2003 Chevrolet Venture
- ✔ 2001-2003 Oldsmobile Silhouette
- ✔ 2001-2003 Buick Rendezvous
- ✔ 2001-2003 Pontiac Aztek
- ✔ 2001-2003 Chevrolet Malibu
- ✔ 2001-2003 Pontiac Grand Prix (3.1L)
- ✔ 2001-2002 Buick Century
- ✔ 2001-2002 Oldsmobile Intrigue
- ✔ 2001-2002 Oldsmobile Aurora (3.5L)
- ✔ 2000-2002 Buick Regal
- ✔ 2001 Chevrolet Lumina
This professionally prepared 2001-2003 Alero PCM is your most reliable path to resolving complex electronic issues and restoring your vehicle’s original performance and dependability.
Frequently Asked Questions
Why do you need my VIN number?
Your Vehicle Identification Number (VIN) allows us to program the module with the exact software and calibrations your specific vehicle requires. This includes engine size, transmission type, and any other factory options. This ensures 100% compatibility and true plug-and-play functionality.
Is this part difficult to install myself?
The physical replacement is straightforward for most DIY mechanics with basic tools. The most important part is performing the security relearn procedure after installation, which we outline in the instructions. It does not require any special equipment.
Will this fix my check engine light?
If the check engine light is caused by an internal PCM failure (common codes P0601-P0606), this replacement module will resolve the issue. However, it’s always best to have your vehicle scanned to ensure the codes aren’t pointing to a different faulty sensor or mechanical part.
What is the difference between a PCM and an ECM?
The terms are often used interchangeably. PCM (Powertrain Control Module) typically controls both the engine and the transmission. ECM (Engine Control Module) traditionally only controls the engine. For most vehicles on this fitment list, this module functions as the PCM.
Do I need to send my old module back?
No core charge is required for this part. You do not need to return your old, faulty module to us.