Restore Peak Performance to Your GM Truck or SUV
Is your 2007 GMC Canyon, Chevy Colorado, or Hummer H3 suffering from perplexing issues like a persistent check engine light, rough idling, stalling, or a complete no-start condition? These are classic signs of a failing Powertrain Control Module (PCM), the central computer responsible for managing your vehicle’s engine and transmission. A faulty PCM can disrupt everything from fuel delivery and ignition timing to emission controls, leading to poor performance, decreased fuel economy, and failed emissions tests. This replacement PCM, part number 19210067 (also interchangeable with 12602010), is the definitive solution to get your vehicle running reliably again.
Diagnosing a Faulty 2007 Canyon PCM
Before condemning the PCM, it’s crucial to rule out other potential causes. However, if you’ve checked sensors, wiring, and fuel delivery systems without success, the PCM itself is the likely culprit. A failing module can store false trouble codes, fail to communicate with diagnostic scan tools, or exhibit intermittent behavior that gets worse over time. Replacing the module is often the final step in resolving these complex electronic issues.
From the Diagnostic Bay
We had a 2007 Chevy Colorado in the shop that was driving the owner crazy. It would stall randomly at red lights, but only when the engine was warm. There were no consistent trouble codes, just a generic U-code for lost communication every now and then. We checked the wiring harness for chafing, tested the crank sensor, and even replaced the ignition switch. Nothing worked. On a hunch, we connected a scope to the PCM’s power and ground feeds and monitored it during a long test drive. Just before a stall, we saw a voltage drop inside the module itself. The internal circuits were failing under heat. We installed one of these pre-programmed PCMs, performed the security relearn, and the truck has been running perfectly ever since. It’s a reminder that sometimes the ‘brain’ is the source of the ghost in the machine.
Common Symptoms of a Failing PCM
- ✔ Persistent Check Engine Light (CEL) with various or no specific codes.
- ✔ Engine stalling, stumbling, or hesitating during acceleration.
- ✔ Unexplained drop in fuel economy.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Vehicle enters ‘limp mode’ with reduced power.
- ✔ No-start condition where the engine cranks but will not fire.
- ✔ Communication errors with OBD-II scan tools.
The Plug-and-Play Solution: Programmed to Your VIN
The biggest challenge when replacing a modern PCM is programming. Dealerships charge a significant amount for this service, and it requires specialized equipment. We eliminate that hassle completely. When you purchase this module, we flash it with the latest official GM software updates specifically for your vehicle. All you need to do is provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN) during or after checkout. This ensures perfect compatibility and function right out of the box, restoring your vehicle to its original factory operating parameters.
After installation, some vehicles may require a simple ‘Security Relearn’ or ‘CASE Relearn’ procedure, which can often be done without special tools. This procedure syncs the new PCM with your vehicle’s anti-theft system and crankshaft position sensor. Instructions for these procedures are widely available online or in service manuals.
This PCM is a direct fit for the following vehicles:
- 2007-2008 Isuzu Ascender (4.2L)
- 2007 Isuzu I-370
- 2007 Isuzu I-290
- 2007-2008 GMC Envoy (4.2L)
- 2007 GMC Canyon
- 2007 Chevrolet Colorado
- 2007 Hummer H3
- 2007-2008 Chevrolet Trailblazer (4.2L)
- 2007-2008 Saab 9-7X (4.2L / 6-cylinder)
- 2007 Buick Rainier (4.2L)
Please verify part number 19210067 is correct for your specific application before ordering.
Frequently Asked Questions
Do I need to get this PCM programmed by a dealer?
No. We handle all the programming for you before we ship the part. We use your VIN to load the correct, updated GM software, making the unit ready for installation upon arrival.
Where do I provide my VIN?
You can enter your 17-digit VIN in the notes section during checkout or send it to us in a message after you complete your purchase. We cannot ship your order until we receive the VIN, as programming is a mandatory part of the process.
Is installation difficult?
The physical installation is straightforward for someone with basic mechanical skills. It typically involves disconnecting the battery, unplugging the electrical connectors, and unbolting the old module. The key step after installation is performing a security relearn procedure, which allows the new PCM to communicate with your vehicle’s anti-theft system. This procedure varies by model but can usually be done without special tools.
Will this fix my check engine light?
If the check engine light and other symptoms are being caused by a faulty PCM, then this part will resolve the issue. However, it’s important to ensure your vehicle has been properly diagnosed, as the light can be triggered by many other components like sensors or wiring problems.
What is the difference between part numbers 19210067 and 12602010?
These are often interchangeable GM service numbers for the same hardware. Our programming process ensures that regardless of the number on the case, the software inside is precisely matched to your vehicle’s VIN and original specifications.