Is Your GM Truck or Van Acting Possessed?
You turn the key in your 2001-2002 Express 3500, and it just cranks and cranks. Or maybe it starts, but it idles rough, stalls at stoplights, or the transmission shifts erratically. You’ve checked the battery, the alternator, and maybe even replaced a sensor or two, but the mysterious problems persist. These aren’t just annoyances; they’re symptoms that the brain of your vehicle—the Powertrain Control Module (PCM)—is failing.
As a technician with over two decades of experience under the hood of these exact GM vehicles, I’ve seen this scenario hundreds of times. The PCM, also known as the ECM or Electronic Control Module, is responsible for managing everything from fuel injection and spark timing to transmission shift points. When it starts to go, it can create a cascade of confusing and frustrating issues that can seem impossible to diagnose.
A Real-World Diagnostic Story
“A customer’s 2002 Express 3500 came into the shop last week with these exact symptoms. It was a work van, and the intermittent stalling was costing him jobs. He’d already replaced the crank sensor and fuel pump with no luck. After hooking up my diagnostic scanner, I saw no communication with the PCM. A quick check of the powers and grounds to the module confirmed they were good. The culprit was an internal failure within the PCM itself, a common issue on these units after years of heat cycles and vibration in the engine bay. We installed one of our VIN-programmed modules, performed the security relearn, and the van was running perfectly within the hour, saving the customer’s business.”
The Direct Solution: A VIN-Programmed PCM
Don’t waste any more time or money chasing phantom problems. This Powertrain Control Module is the definitive solution for a failing unit in your GM truck, van, or SUV. It’s not just a replacement part; it’s a complete, ready-to-install fix. We take the guesswork out of the equation by programming the module specifically for your vehicle using your VIN.
Why is VIN Programming Critical?
Your vehicle’s VIN is tied to specific factory calibrations for the engine, transmission, emissions equipment, and even tire size. A generic, unprogrammed module from a salvage yard or parts store simply won’t work correctly. It can lead to check engine lights, poor performance, and failed emissions tests. Our process ensures a seamless installation.
- ✔ Guaranteed Compatibility: By flashing the module with your VIN, we ensure it has the correct software for your vehicle’s specific options.
- ✔ Latest GM Updates: We install the newest software updates from General Motors, which often correct factory drivability issues, improve transmission shifting, and enhance fuel economy.
- ✔ Plug-and-Play Installation: Once you receive the module, the primary installation is straightforward. In most cases, a simple security relearn procedure is all that’s needed to get you back on the road.
- ✔ No Dealer Visit Required: Save yourself the time, hassle, and high cost of having a dealership program a new module for you.
Confirming Your Part Number
This module, service number 12200411, is a direct replacement for several other common part numbers. Please verify that your original module has one of the following numbers printed on the label to ensure a perfect match:
- ✔ 12200411
- ✔ 12201281
- ✔ 12576160
- ✔ 52369718
Will This Fit My Vehicle?
This PCM is compatible with a wide range of 2000-2003 GM gasoline-powered vehicles. Please check the list below to confirm your specific model. Note the location details, as it can vary between trucks (under the battery) and vans (rear engine compartment).
Trucks & SUVs:
- ✔ Chevrolet Silverado & GMC Sierra (1500, 2500, 3500): 2001-2002
- ✔ Chevrolet Avalanche (1500, 2500): 2002
- ✔ Chevrolet Tahoe & GMC Yukon / Yukon XL: 2001-2002
- ✔ Cadillac Escalade / EXT: 2002
- ✔ GMC Sierra Denali: 2002
- ✔ Chevrolet S10 / GMC Sonoma: 2001-2002 (4.3L)
- ✔ Chevrolet Blazer / GMC Jimmy: 2001-2002
- ✔ Oldsmobile Bravada: 2001
Vans:
- ✔ Chevrolet Express & GMC Savana (1500, 2500, 3500): 2001-2002
- ✔ Chevrolet Astro & GMC Safari: 2000-2002
Cars:
- ✔ Chevrolet Camaro & Pontiac Firebird: 2001-2002 (5.7L)
- ✔ Chevrolet Corvette: 2001-2003
After your purchase, simply provide us with your 17-digit VIN, and we’ll handle the programming. Restore your vehicle’s performance and reliability today with a professionally prepared PCM.