Restore Your Truck’s Brain and Get Back on the Road
Is your truck suffering from baffling issues like a persistent check engine light, rough idling, or a frustrating no-start condition? The Powertrain Control Module (PCM) is the central computer of your vehicle, and when it fails, it can cause a cascade of problems that are often misdiagnosed. This replacement module is the definitive solution, arriving at your door fully programmed with the latest GM software specifically for your vehicle’s VIN. Forget expensive dealership visits and complex programming tools; this is a direct, plug-and-play fix designed to restore your truck’s performance and your peace of mind.
Signs Your PCM Needs Attention & Benefits of This Solution
- ✔ Check Engine Light On: Specifically for internal module errors like P0601, P0602, or P0606.
- ✔ Engine Performance Issues: Solves problems like stalling, hesitation, and poor acceleration.
- ✔ Reduced Fuel Economy: A healthy PCM ensures your engine runs efficiently, saving you money at the pump.
- ✔ Transmission Shifting Problems: Corrects erratic or harsh shifting controlled by the module.
- ✔ Failed Emissions Test: Restores proper engine parameters to help you pass inspection.
- ✔ Complete No-Start Condition: When the PCM can no longer manage fuel or spark, this brings your engine back to life.
Guided Installation for a Confident Repair
Installing your new 2004-2006 Colorado PCM is a straightforward process you can handle with basic tools. Follow these steps to get your truck running smoothly again.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent any accidental reconnection.
- Locate the Module: On your truck, the PCM is typically found on the right-hand (passenger side) of the firewall in the engine bay.
- Disconnect the Harnesses: There will be several large electrical connectors attached to the module. Carefully disengage the locking tabs and pull the connectors straight out. Avoid pulling on the wires themselves.
- Remove the Old PCM: Unbolt the mounting hardware holding the old module in place and carefully remove it from the vehicle.
- Install the New Module: Seat your new, pre-programmed PCM into the mounting bracket and secure it with the original hardware.
- Reconnect Everything: Firmly plug the electrical connectors back into the new module until they click into place. Reconnect your battery’s negative terminal.
- Perform Security Relearn (If Needed): In many cases, you may need to perform a simple security relearn procedure. Turn the key to the ‘ON’ position for 10-15 minutes, then ‘OFF’ for 10 seconds. Repeat this cycle 3 times. On the final cycle, the truck should start normally.
Tailored Fitment For Your Vehicle
This module is a guaranteed fit for the following vehicles. We program it using your VIN to ensure it matches every option your specific vehicle came with from the factory.
- CHEVROLET COLORADO: 2004-2006 (Electronic Control Module; RH firewall)
- GMC CANYON: 2004-2006 (Electronic Control Module; RH firewall)
- HUMMER H3: 2006 (Electronic Control Module; RH firewall)
- ISUZU I-280: 2006 (Electronic Control Module; RH firewall)
- ISUZU I-350: 2006 (Electronic Control Module; RH firewall)
- BUICK RAINIER: 2006 (4.2L, Electronic Control Module; LH engine)
- CHEVROLET TRAILBLAZER & TRAILBLAZER EXT: 2006 (4.2L, Electronic Control Module; LH engine)
- GMC ENVOY & ENVOY XL: 2006 (4.2L, Electronic Control Module; LH engine)
- ISUZU ASCENDER: 2006 (4.2L, Electronic Control Module; LH engine)
- SAAB 9-7X: 2006 (6 cylinder, Electronic Control Module; LH engine)
This part is a direct replacement for part numbers: 12569773, 12588650, 12589311, 12589585, 12591647, and many more.
Your Questions Answered About the 2004-2006 Colorado PCM
Do I need to program this module?
No. The main benefit of our service is that we flash the module with the latest GM updates using the VIN you provide during checkout. It arrives ready for a plug-and-play installation.
What information do you need from me?
After you place your order, we will need your vehicle’s 17-digit Vehicle Identification Number (VIN). This ensures we load the exact correct software for your truck’s engine, transmission, and options.
Where is the PCM located on my 2005 Colorado?
For the 2004-2006 Colorado and Canyon, the PCM is mounted on the passenger-side firewall in the engine compartment. It’s a silver metal box with multiple large electrical connectors.
What is the security relearn procedure?
It’s a simple process to sync the new PCM with your vehicle’s anti-theft system. It typically involves cycling the ignition key from ‘ON’ to ‘OFF’ in 10-minute intervals, three times in a row, without starting the engine. This allows the systems to communicate and authorize the new module.
Will this fix my P0601 error code?
Yes, the P0601 code indicates an ‘Internal Control Module Memory Check Sum Error,’ which is a fatal flaw in the PCM itself. Replacing the module is the only correct and permanent solution for this specific code, and our pre-programmed unit is designed to resolve it.