Is Your 2001-2002 GM Truck or SUV Acting Up?
If you’re behind the wheel of a 2001-2002 Yukon, Sierra, Silverado, or another GM vehicle from this era, you know it’s a workhorse. But when the brain of the operation—the Powertrain Control Module (PCM)—starts to fail, it can bring your vehicle to a grinding halt. From my two decades in the garage, I’ve seen these exact symptoms hundreds of times. A failing PCM isn’t just an annoyance; it’s a problem that can leave you stranded.
Common Symptoms of a Failing GM PCM
A faulty PCM can manifest in ways that might seem unrelated. You might be chasing sensor codes or transmission issues when the root cause is the computer itself. Here’s what I typically see in the shop:
- ✔ Unexplained Check Engine Light that won’t clear, often with communication error codes.
- ✔ Complete no-start condition where the engine cranks but won’t fire up.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Poor fuel economy and a noticeable loss of power.
- ✔ Stalling for no apparent reason, either at idle or while driving.
- ✔ Multiple random trouble codes appearing at once (e.g., for O2 sensors, injectors, etc.).
- ✔ The dreaded P0601 “Internal Control Module Memory Check Sum Error” code, which is a direct confirmation of internal PCM failure.
Expert Pro Tip: Check Your Grounds First!
Before you condemn your PCM, do a thorough check of your vehicle’s main battery and ground connections. On these GM trucks, the PCM is often located under the battery tray. A leaking battery can corrode the PCM connectors and nearby ground wires, causing identical symptoms to a failed module. A few minutes with a wire brush can sometimes save you hundreds of dollars. I always check the main ground strap from the engine block to the frame—it’s a common point of failure.
The Reliable, Hassle-Free Solution
This isn’t just a replacement part; it’s a complete solution. We take a quality, tested Electronic Control Module and program it specifically for your vehicle using your VIN. This critical step ensures that all the factory settings for your engine, transmission, and options are perfectly matched. It’s the same process a dealership would use, but without the high cost and inconvenience.
By providing your VIN at checkout, you get a module that is ready for a straightforward installation. We flash it with the latest GM-released software updates, which often correct drivability issues and improve performance over the original programming your vehicle came with.
Why Choose Our Programmed PCM?
- ✔ VIN-Programmed for Your Vehicle: No need for an expensive trip to the dealer. This module arrives ready to install.
- ✔ Latest GM Software: We load the most current calibrations to ensure optimal engine and transmission performance.
- ✔ Direct-Fit Replacement: Guaranteed to be compatible with service number 52369718 and other interchangeable parts.
- ✔ Solves Common Issues: Directly addresses no-start, poor running, and communication error codes caused by a faulty PCM.
- ✔ Simple Installation: After disconnecting the battery, the PCM is typically located under the battery on the driver’s side frame rail. Unplug the old one, plug this one in, and perform the security relearn procedure (instructions are widely available online).
Guaranteed Compatibility
This module is a direct replacement for several part numbers. If your original module has any of the following numbers on the sticker, this part is compatible:
- ✔ 12200411
- ✔ 12201281
- ✔ 12576160
- ✔ 52369718
Extensive Vehicle Fitment List
This PCM is compatible with a wide range of 2000-2003 GM trucks, vans, and SUVs. Please verify your vehicle is on this list and that the location matches. If you have any questions, we’re here to help.
- ✔ Cadillac Escalade & EXT (2002)
- ✔ Chevrolet Avalanche 1500 & 2500 (2002)
- ✔ Chevrolet/GMC S10, S15, Sonoma, Blazer, Jimmy (2001-2002)
- ✔ Chevrolet Camaro & Pontiac Firebird (2001-2002, 5.7L)
- ✔ Chevrolet Corvette (2001-2003)
- ✔ Chevrolet Express & GMC Savana Vans 1500/2500/3500 (2001-2002, Gasoline)
- ✔ Chevrolet Silverado & GMC Sierra Pickups 1500/2500/3500 (2001-2002, Gasoline)
- ✔ Chevrolet Suburban & GMC Yukon XL 1500/2500 (2001-2002)
- ✔ Chevrolet Tahoe & GMC Yukon (2001-2002)
- ✔ GMC Sierra Denali (2002)
- ✔ Oldsmobile Bravada (2001)
- ✔ Chevrolet Astro & GMC Safari (2000-2002)