Restore Your Envoy’s Performance and Reliability
Is your 2002 GMC Envoy giving you headaches with erratic behavior, a persistent check engine light, or worse, a no-start condition? A faulty Powertrain Control Module (PCM) is often the culprit behind these frustrating issues, leaving you stranded and stressed. You’ve come to the right place for the definitive, hassle-free solution. This module is expertly programmed to your vehicle’s specific VIN, ensuring it works perfectly right out of the box to get you back on the road with confidence.
Common Symptoms of a Failing PCM & Your Solution
A failing 2002 GMC Envoy PCM can be difficult to diagnose, but it typically reveals itself through a variety of performance problems. If you’re experiencing any of the following, a replacement module is your most reliable fix:
- Check Engine Light: Specifically for internal module error codes like P0601, P0602, P0603, P0604, P0605, or P0606.
- No-Start or Hard-Start: The engine cranks but refuses to start, or takes an excessive amount of time to turn over.
- Stalling & Rough Idle: Your vehicle may stall unexpectedly while driving or idle erratically at a stop.
- Poor Fuel Economy: A sudden and unexplained drop in your vehicle’s MPG.
- Erratic Shifting: The transmission may shift harshly, slip between gears, or fail to shift at all.
- Communication Issues: Your scan tool is unable to communicate with the PCM.
This Powertrain Control Module is the central command for your Envoy’s engine and transmission. When it fails, these frustrating and unpredictable issues arise. Our expertly programmed PCM is the direct-fit, reliable fix to restore your vehicle’s performance and dependability.
Features & Benefits
- โ VIN-Programmed for Your Envoy: We flash this module with the latest GM software updates using your vehicle’s specific VIN. This ensures perfect compatibility and function right out of the box.
- โ Plug & Play Installation: No need for an expensive trip to the dealership for programming. Once you receive your module, installation is straightforward, getting you back on the road quickly.
- โ Solves Common Issues: Eliminates frustrating problems like stalling, rough running, harsh shifting, and false sensor codes caused by a faulty computer.
- โ Restored Performance & Efficiency: A properly functioning PCM ensures your engine receives the correct signals for optimal fuel delivery and ignition timing, restoring lost power and fuel economy.
- โ Direct-Fit Replacement: Guaranteed to fit and function for all models listed, including the 2002 Trailblazer, Bravada, and Envoy XL/EXT, matching part numbers like 12571178, 19210066, and more.
- โ One-Year Replacement Coverage: Drive with confidence knowing this unit is backed by our one-year replacement warranty.
A Technician’s Note: Many Envoy owners are tempted to grab a used PCM from a salvage yard, hoping for a cheap fix. This almost never works. The PCM is the brain of your vehicle and is tied directly to your specific VIN, options, and security system (Passlock). Without proper programming, the vehicle won’t start or will run poorly. Our process ensures your new 2002 GMC Envoy PCM is a true ‘plug and play’ solution by loading the correct GM-certified software for your truck, saving you time, money, and immense frustration.
Frequently Asked Questions
Do I need to provide my VIN?
Yes, absolutely. We cannot ship your PCM until we have your 17-digit Vehicle Identification Number (VIN). This is essential for us to program the module correctly for your specific vehicle. Please provide it during or after checkout.
Is any additional programming required after installation?
In most cases, this is a plug-and-play unit. However, you will need to perform a security relearn procedure (often called a CASE relearn or Passlock relearn), which can typically be done without special tools in about 30 minutes. Instructions are widely available online, or your mechanic can perform it in minutes.
How do I find my part number?
The original part number is printed on a sticker on your factory PCM. However, as long as your vehicle is a 2002 Envoy, Trailblazer, Bravada, or one of the XL/EXT models, this unit is the correct replacement, as we program it to your VIN, superseding the original part number.
Will this fix my check engine light?
If the check engine light is caused by an internal PCM failure (common codes include P0601-P0606), then this module will solve the problem. It is crucial to ensure that any other faulty sensors or wiring issues have been diagnosed and addressed first.
Where is the PCM located on my 2002 Envoy?
On the 2002 GMC Envoy and related GMT360 platform vehicles, the Powertrain Control Module (PCM) is located in the engine bay, on the driver’s side, near the fuse box.
What does this purchase include?
This listing is for one 2002 GMC Envoy PCM, professionally programmed to your vehicle’s VIN with the latest GM software updates.