Is Your Blazer or Jimmy Experiencing Frustrating Engine Problems?
If your 2001-2002 Chevrolet Blazer S10 or GMC Jimmy S15 is suffering from issues like stalling, poor fuel economy, a persistent check engine light, or a no-start condition, a failing Powertrain Control Module (PCM) is often the culprit. As the central computer of your vehicle, the PCM is responsible for managing everything from fuel injection and spark timing to transmission shifting. When it begins to fail, it can cause a cascade of confusing and performance-robbing symptoms that can be difficult to diagnose.
This replacement PCM, part number 52369718, is the definitive solution to restore your truck’s original performance and reliability. We take the guesswork and hassle out of the repair process. Unlike a generic module from a parts store, this unit is professionally programmed specifically for your vehicle using your unique Vehicle Identification Number (VIN). This ensures that all factory settings, security information (PATS/VATS), and the latest GM software updates are correctly loaded, making for a seamless, plug-and-play installation.
From the Diagnostic Bay
I remember a 2002 GMC Jimmy S15 that came into the shop with a ghost of a problem. The owner complained of intermittent stalling at red lights and a transmission that would occasionally refuse to shift out of first gear. There were no consistent trouble codes, just a generic communication error that would pop up now and then. We checked the wiring, sensors, and grounds for two days straight. Finally, on a hunch, we monitored the PCM’s data stream during a long test drive and saw the 5-volt reference signal intermittently drop out. It was a classic sign of an internally failing computer. We swapped in a VIN-programmed PCM like this one, and the Jimmy ran like it just rolled off the assembly line. It’s a reminder that sometimes the most baffling issues trace back to the vehicle’s brain.
The Right Solution: A Programmed 2001-2002 Blazer S10 PCM
Don’t waste time and money at a dealership for expensive programming services. Our process is simple: you purchase the module, provide us with your VIN, and we handle the rest. We ship you a unit that is ready to be installed right out of the box. This module is a direct replacement for several part numbers, including 12200411, 12201281, 12576160, and 52369718, and fits a wide variety of GM trucks, vans, and SUVs from the era, ensuring broad compatibility.
Common Symptoms of a Failing PCM:
- ✔ Check Engine Light is on with various or no specific codes
- ✔ Engine stalling or misfiring unpredictably
- ✔ Harsh or erratic automatic transmission shifting
- ✔ A noticeable drop in fuel economy
- ✔ The vehicle fails to start, even with a good battery and starter
- ✔ Communication errors with diagnostic scan tools
- ✔ Failure to pass an emissions test
Replacing your faulty computer with this pre-programmed module is the most effective way to resolve these issues and get your vehicle back on the road with confidence. The installation is straightforward for a DIY mechanic with basic tools. The PCM on the Blazer/Jimmy is typically located in the right-front of the engine compartment. Simply disconnect the battery, unplug the electrical connectors from the old module, unbolt it, and install the new one in its place. Reconnect everything, and you’re ready to go.
Frequently Asked Questions
What is a PCM and what does it do?
The Powertrain Control Module (PCM) is your vehicle’s main computer. It controls the critical functions of the engine and transmission, such as fuel mixture, ignition timing, and shift points, to ensure optimal performance, fuel efficiency, and emissions.
Do I need to do any programming myself?
No. This PCM comes fully programmed to your vehicle’s specific VIN. We load the latest GM software and all necessary vehicle-specific data before shipping. It is a true plug-and-play solution, requiring no further dealer programming.
Where is the PCM located on my 2001-2002 Blazer S10?
On the 2001-2002 Blazer S10, Jimmy S15, and Sonoma, the PCM is located in the engine compartment on the right-hand (passenger) side, near the firewall or inner fender.
What happens after I provide my VIN?
Once we receive your VIN, our technicians will use it to access the correct GM factory software for your vehicle’s exact build. We then flash this software onto the module, ensuring it functions perfectly with your engine, transmission, and options.
Will this fix my check engine light?
If the check engine light is caused by a faulty PCM, then yes, this replacement part will solve the issue. However, it’s always recommended to have the codes read by a scanner to ensure the problem isn’t a separate sensor or component.