Restore Peak Performance to Your GM Vehicle
Is your 2001 Oldsmobile Bravada, Chevy S10, or GMC truck suffering from frustrating and unpredictable issues? Problems like stalling at intersections, a persistent check engine light, erratic transmission shifting, or a complete no-start condition often point directly to a failing Powertrain Control Module (PCM). As the central computer of your vehicle, the PCM is responsible for everything from fuel mixture and ignition timing to transmission operation. When it falters, the entire vehicle’s performance and reliability are compromised. This isn’t just an inconvenience; it can be a serious safety concern.
We offer a dependable and straightforward solution. This replacement PCM, compatible with service number 12200411, arrives at your door pre-programmed with the latest GM software updates, tailored specifically to your vehicle’s 17-digit VIN. This critical step ensures seamless communication between all your vehicle’s systems and eliminates the need for an expensive trip to the dealership for programming. You get a reliable part that’s ready for installation, getting you back on the road with confidence.
A Technician’s Notebook
I remember a 2001 GMC Jimmy that came into the shop on a tow truck. The owner had already replaced the fuel pump and filter, convinced it was a fuel delivery issue because it would crank but not start. He was frustrated and out a few hundred dollars. I hooked up my scan tool and immediately noticed I couldn’t communicate with the PCM—a classic red flag. After checking the powers and grounds to the module, which were all good, I knew the computer itself was the culprit. The internal circuits responsible for activating the fuel pump relay had failed. We installed one of our pre-programmed modules, performed the quick security relearn, and the truck fired right up on the first try. It’s a common scenario that shows how a faulty 2001 Bravada PCM can mimic other failures, making a proper diagnosis key.
Is Your GM Vehicle Showing These Signs of PCM Failure?
A failing engine computer can manifest in numerous ways. If you’re experiencing any of the following, a faulty PCM could be the root cause:
- ✔ Check Engine Light is illuminated with codes like P0601 (Internal Control Module Memory Check Sum Error) or P0606 (PCM Processor Fault).
- ✔ The engine cranks but will not start.
- ✔ Unexplained stalling or rough idling.
- ✔ A noticeable decrease in fuel economy.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Your diagnostic scan tool cannot communicate with the PCM.
- ✔ The vehicle fails to pass an emissions test.
DIY-Friendly Installation: A Step-by-Step Guide
Replacing the PCM is a manageable job for a DIYer with basic tools. For the 2001 Bravada, Blazer, and S10/Sonoma, the module is typically located in the right-hand (passenger side) front of the engine compartment.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent accidental reconnection.
- Locate the PCM: Find the existing module in your engine bay. It’s a metal box with several large electrical connectors.
- Disconnect the Module: Carefully unplug the wiring harness connectors. Most have a lever or tab-lock mechanism that needs to be released. Avoid pulling on the wires themselves.
- Remove the Old PCM: Unbolt the module from its mounting bracket and remove it from the vehicle.
- Install the New PCM: Mount your new, pre-programmed PCM onto the bracket and securely plug in all the wiring harness connectors.
- Reconnect the Battery: Re-attach the negative battery terminal.
- Perform Security Relearn: This is a vital final step. Turn the key to the ‘ON’ position (without starting) for 10-15 minutes, then turn it ‘OFF’ for 10 seconds. Repeat this cycle two more times. On the fourth attempt, the vehicle should start, and the security system will be synced with the new PCM.
Verified Compatibility for a Wide Range of GM Vehicles
This module is a direct replacement for many popular GM trucks, vans, and SUVs, provided the service number on your original part matches one listed below. Always verify your part number before ordering.
Compatible Part Numbers: 12200411, 12201281, 12576160, 52369718
Fits Models Including:
- ASTRO / SAFARI (GMC) (2000-2002)
- AVALANCHE 1500 / 2500 (2002)
- BLAZER S10 / JIMMY S15 (2001-2002)
- BRAVADA (2001)
- CAMARO / FIREBIRD (2001-2002, 5.7L)
- CORVETTE (2001-2003)
- ESCALADE / ESCALADE EXT (2002)
- EXPRESS / SAVANA VANS (1500/2500/3500) (2001-2002)
- S10 / S15 / SONOMA (2001-2002, 4.3L)
- SIERRA / SILVERADO PICKUPS (1500/2500/3500) (2001-2002, Gasoline)
- SUBURBAN (1500/2500) (2001-2002)
- TAHOE / YUKON / YUKON XL / SIERRA DENALI (2001-2002)
Frequently Asked Questions
Frequently Asked Questions
What information do you need to program my PCM?
After purchase, we require your vehicle’s 17-digit Vehicle Identification Number (VIN). This allows us to load the correct, GM-certified software for your specific vehicle configuration.
Is this PCM ready to install when I receive it?
Yes, it comes fully programmed to your VIN. The only additional step required after physical installation is the security relearn procedure, which does not require any special tools.
How do I perform the security relearn procedure?
It’s simple: Turn the key to ON for 10-15 minutes until the security light goes out or stops flashing. Turn the key OFF for 10 seconds. Repeat this two more times. After the third cycle, the vehicle will be ready to start.
Will this fix my transmission problems?
In many cases, yes. The PCM also functions as the transmission control module (TCM) in these vehicles. If your shifting issues are caused by faulty electronic commands, this new module will resolve them.
Where is the part number located on my original module?
The part number, often called a Service Number, is printed on a sticker on the case of your original PCM. It will typically be a large, bold number like ‘12200411‘.