Is Your Truck Running Rough? It Might Be Time for a New Engine Computer.
If your 2007 Chevrolet Colorado, GMC Canyon, Hummer H3, or other compatible GM truck is experiencing frustrating issues like stalling, poor fuel economy, erratic shifting, or a persistent Check Engine Light, a failing Powertrain Control Module (PCM) is a very likely culprit. The PCM is the central brain of your vehicle’s engine and transmission, controlling everything from fuel injection and spark timing to transmission shift points. When it begins to fail, it can cause a wide range of confusing and intermittent problems that can be difficult to diagnose.
This replacement PCM, part number 12602010 (interchangeable with 19210067), is the definitive solution to restore your vehicle’s factory performance and reliability. We take the guesswork out of the repair by pre-programming the module specifically for your truck using the Vehicle Identification Number (VIN) you provide. This ensures that all factory settings, security information, and the latest GM software updates are correctly loaded before it even ships. The result is a straightforward installation process that gets you back on the road quickly and confidently.
Common Symptoms of a Failing 2007 Colorado PCM
A faulty PCM can manifest in numerous ways. If you’re noticing any of the following issues, it’s a strong indicator that your engine computer needs attention. Cross-reference these symptoms with any diagnostic trouble codes (DTCs) you may have to confirm the diagnosis.
- ✔ Check Engine Light: The most common sign, often with codes related to internal module failure, sensor circuits (U-codes, P0600-P0606), or communication errors.
- ✔ No-Start or Hard-Start Condition: The engine may crank but fail to start, or take an unusually long time to fire up, especially when warm.
- ✔ Poor Engine Performance: Noticeable loss of power, hesitation during acceleration, and rough idling are classic symptoms.
- ✔ Reduced Fuel Economy: If the PCM cannot properly manage the air-fuel mixture, your MPG will suffer significantly.
- ✔ Erratic Transmission Shifting: The PCM also controls transmission functions, so you might experience harsh shifts, delayed engagement, or getting stuck in a single gear (limp mode).
- ✔ Intermittent Stalling: The vehicle may stall for no apparent reason, either while driving or at idle, and may or may not restart immediately.
- ✔ Failure of Emissions Tests: A malfunctioning PCM will prevent the vehicle’s systems from reaching a ‘ready’ state, leading to an automatic failure.
The Importance of VIN Programming
Unlike a simple sensor, a PCM cannot be swapped from one vehicle to another without proper programming. Each module is coded with the specific VIN, options, tire size, and security information for the vehicle it’s installed in. Our process handles this critical step for you. By providing your VIN at checkout, you receive a module that is a true plug-and-play component for your specific truck. This service, performed with the latest official GM software, ensures all systems communicate correctly and avoids conflicts that would otherwise immobilize your vehicle.
Installation and Security Relearn
Once you receive your pre-programmed module, installation is straightforward. On most of these trucks, the PCM is located on the right-hand (passenger side) firewall in the engine bay. After disconnecting the battery and swapping the modules, you will need to perform a simple security relearn procedure. This allows your vehicle’s anti-theft system to recognize the new PCM. The procedure typically involves turning the key to the ‘ON’ position for 10 minutes, then ‘OFF’ for 10 seconds, and repeating this cycle three times. This simple process syncs the components and is essential for the engine to start.
Guaranteed Fitment
This module is a direct replacement for a wide range of 2007 and 2008 GM trucks and SUVs. Please verify your part number and application from the list below:
- 2007 Chevrolet Colorado: Electronic Control Module; (RH firewall)
- 2007 GMC Canyon: Electronic Control Module; (RH firewall)
- 2007 Hummer H3: Electronic Control Module; (RH firewall)
- 2007 Isuzu I-290 & I-370: Electronic Control Module; (RH firewall)
- 2007 Buick Rainier: Electronic Control Module; (LH engine), 4.2L
- 2007-2008 Chevrolet Trailblazer: Electronic Control Module; (LH engine), 4.2L
- 2007-2008 GMC Envoy: Electronic Control Module; 4.2L (LH engine)
- 2007-2008 Isuzu Ascender: Electronic Control Module; (4.2L, LH engine)
- 2007-2008 Saab 9-7X: Electronic Control Module; (LH engine), 4.2L / 6 cylinder
Frequently Asked Questions
Do I need to have this PCM programmed?
No. We handle all the programming for you before shipment. Simply provide your vehicle’s VIN during or after checkout, and we will load the latest GM software specific to your truck. It will arrive ready for installation.
What is the security relearn procedure?
The security relearn, or anti-theft relearn, is a simple procedure that syncs the new PCM with your vehicle’s existing keys and security system. It typically involves a 30-minute key cycle process (10 minutes ON, 10 seconds OFF, repeated three times). This must be performed after installation for the engine to start.
Where is the PCM located on my 2007 Colorado?
On the 2007 Chevrolet Colorado and its platform mates (GMC Canyon, Hummer H3), the PCM is typically mounted to the right-hand (passenger side) of the firewall in the engine compartment.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of the PCM, then yes, this part will resolve the issue. However, if the light is on due to a faulty sensor, wiring, or other component, those issues will need to be addressed separately. This module will correct any codes directly related to PCM failure (e.g., P0601-P0606).
How 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 place your order. Your VIN can be found on your vehicle’s dashboard (visible through the driver’s side windshield), on the driver’s door jamb sticker, or on your insurance and registration documents.