Restore Peak Performance and Drive with Confidence
Is your Isuzu I-350 or GM truck suffering from frustrating issues like a persistent check engine light, rough idling, poor fuel economy, or even a no-start condition? These are classic signs that the brain of your engine, the Powertrain Control Module (PCM), is failing. Don’t let a faulty computer keep you off the road. This replacement PCM is the definitive solution, arriving at your door fully programmed to your vehicle’s specific VIN with the latest GM software updates. It’s designed to restore the smooth, reliable performance you depend on, giving you back that worry-free driving experience.
Signs Your Engine’s Brain Needs Help
A failing PCM can cause a cascade of confusing problems. If you’re experiencing any of the following, this module is the solution you’ve been looking for:
- ✔ Persistent Check Engine Light (CEL) that won’t go away.
- ✔ Diagnostic Trouble Codes (DTCs) related to module communication (e.g., U0100, P0606).
- ✔ Unexplained drops in fuel mileage and engine performance.
- ✔ Rough or erratic engine idling and stalling.
- ✔ Harsh or delayed transmission shifting.
- ✔ The vehicle cranks but refuses to start.
An Expert’s Tale: The Ghost in the Machine
I once worked on a customer’s Trailblazer with the same platform as your I-350. It had the most bizarre, intermittent electrical gremlins. The gauges would flicker, it would stall at random stoplights, and it threw codes that made no sense. The owner had spent a fortune on sensors and wiring diagnostics to no avail. On a hunch, we swapped in a known-good, correctly programmed PCM. It was like flipping a switch. The truck instantly ran perfectly, and all the phantom issues vanished. It’s a powerful reminder that sometimes the most complex problems have a simple, central solution—the module that controls everything.
Guided Installation for a Confident Fix
You don’t need to be a master mechanic to complete this repair. Our goal is to make this as straightforward as possible. Follow these simple steps to get your truck back in top shape:
- Safety First: Always begin by disconnecting the negative terminal on your vehicle’s battery to prevent any electrical shorts.
- Locate the PCM: On your 2006 Isuzu I-350, the PCM is typically located on the right-hand (passenger) side of the firewall in the engine bay.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be released. Once disconnected, unbolt the old module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed PCM in the same location. Securely reconnect the electrical harnesses, ensuring they click into place.
- Power Up: Reconnect the negative battery terminal. The vehicle may require a security relearn procedure, which often involves turning the key to the ‘ON’ position for 10-15 minutes. Your vehicle’s service manual can provide specific steps if needed.
Tailored Fit for Your Ride
This module is a direct replacement for a wide range of vehicles, ensuring precise compatibility. Please verify your make, model, and year below. This part is programmed specifically for your VIN, making it a perfect match.
- CHEVROLET COLORADO: 2004-2006 (Electronic Control Module; RH firewall)
- GMC CANYON: 2004-2006 (Electronic Control Module; RH firewall)
- BUICK RAINIER: 2006 (Electronic Control Module; LH engine, 4.2L)
- HUMMER H3: 2006 (Electronic Control Module; RH firewall)
- ISUZU ASCENDER: 2006 (Electronic Control Module; 4.2L, LH engine)
- ISUZU I-350: 2006 (Electronic Control Module; RH firewall)
- ISUZU I-280: 2006 (Electronic Control Module; RH firewall)
- CHEVROLET TRAILBLAZER & TRAILBLAZER EXT: 2006 (Electronic Control Module; LH engine, 4.2L)
- GMC ENVOY & ENVOY XL: 2006 (Electronic Control Module; 4.2L, LH engine)
- SAAB 9-7X: 2006 (Electronic Control Module; LH engine, 6 cylinder)
This unit is compatible with part numbers: 12569773, 12588650, 12589311, 12589585, 12591647, 12591648, 12593531, 12593532, 12594430, 12594431, 12596783, 12596784, 12597521, 12597776, 12597777, 12600818, 12604438, 12604439, 12606369, 12606373, 12606374, 12606398, 12606399, 19209820, 19209821.
Your Questions, Answered
What exactly does this PCM do?
The Powertrain Control Module (PCM) is the central computer for your vehicle’s engine and transmission. It manages everything from fuel injection and spark timing to transmission shift points and emissions controls to ensure optimal performance, efficiency, and reliability.
Is this part truly plug-and-play?
Yes, it is. We program the module to your vehicle’s specific Vehicle Identification Number (VIN) before shipping. This ensures it communicates correctly with all other modules in your truck. In some cases, a simple security relearn (key-on procedure) may be necessary after installation, which you can easily do yourself.
Where do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your VIN. We cannot ship your part until we receive this information, as the programming is essential for the module to function in your vehicle.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of the original PCM, then yes, this part will resolve the issue. However, if the light is on due to a faulty sensor or other component, that separate issue will still need to be addressed.
Do I need to have my keys reprogrammed?
No. Since we program the module to your VIN, it is set up to recognize your existing factory keys and security system. No expensive trip to the dealer is required for key programming.