Restore Your Envoy’s Performance and Reliability
Is your 2002 GMC Envoy suffering from frustrating and unpredictable issues like a persistent check engine light, erratic shifting, a rough idle, or even a no-start condition? These are classic signs of a failing Powertrain Control Module (PCM), the central computer of your vehicle. Don’t let a faulty module keep you off the road. This pre-programmed PCM is the straightforward, reliable solution to restore your truck’s original performance and give you back the confidence you need in your vehicle.
Common Symptoms of a Failing 2002 Envoy PCM & Your Solution
A failing PCM can cause a wide range of problems that can be difficult to diagnose. If you’re experiencing any of the following, a faulty module is the likely culprit. This unit is the definitive fix for issues originating from the engine computer, including:
- Harsh or delayed automatic transmission shifts
- Poor fuel economy
- Engine stalling, stumbling, or misfiring
- Failure to communicate with scan tools
- Illuminated Check Engine Light (CEL)
- Specific Diagnostic Trouble Codes (DTCs) like P0601, P0602, P0606, or U-series communication codes
By replacing your old module with this professionally programmed 2002 GMC Envoy PCM, you are addressing the root cause of these electronic failures and restoring the critical link between your engine and transmission.
Features & Benefits
- โ Plug & Play Installation: This module arrives pre-programmed to your vehicle’s specific VIN. Simply provide your VIN after purchase, and we’ll handle the complex flashing, saving you a costly trip to the dealership.
- โ Optimized Performance: We flash each unit with the latest GM-released software updates. This ensures your engine and transmission operate with optimal efficiency, improved fuel mileage, and smoother performance.
- โ Guaranteed Compatibility: This is a direct replacement for a range of part numbers, including 19210066, 12571178, 12576463, DLDA, and YBLR. It’s the correct fit for your 2002 Envoy, Trailblazer, or Bravada.
- โ Solves Frustrating Issues: Directly addresses common electronic failures, eliminating false sensor codes and communication errors that can make diagnostics a nightmare.
- โ One-Year Replacement Coverage: Drive with confidence knowing this unit is backed by our one-year replacement warranty.
Expert Insight: The Ghost in the Machine
“A common issue we see with these GMT360 platform vehicles (Envoy, Trailblazer) is a PCM that causes what appears to be a major transmission failure. The owner experiences hard shifts and gets transmission-related codes, leading them to believe they need a costly transmission rebuild. More often than not, the problem is actually the 2002 GMC Envoy PCM failing to communicate correctly with the Transmission Control Module (TCM). Replacing the PCM first can save you thousands of dollars and hours of unnecessary labor. It’s the smart first step in diagnosing any electronic or shifting-related problem on these trucks.”
Frequently Asked Questions
Do I need to program this computer?
No. We program the computer for you using the VIN you provide during checkout. It will arrive ready to be installed in your vehicle.
Where do I find my vehicle’s VIN?
Your 17-digit Vehicle Identification Number (VIN) can be found on the driver’s side of the dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.
Will this fix my check engine light?
This 2002 GMC Envoy PCM is designed to correct all issues and codes caused by a faulty original module. However, if your vehicle has other mechanical or electrical problems (e.g., a bad sensor or wiring issue), the check engine light may remain on until those separate issues are resolved.
Is any other procedure needed after installation?
Yes, after installation, a Case/Crankshaft Variation Relearn procedure must be performed with a compatible high-level scan tool. This is a standard procedure required for these vehicles to sync the new PCM with the engine’s crankshaft position sensor to prevent misfire codes. Many local repair shops can perform this service for you.
What part numbers does this unit replace?
This computer is a direct replacement for the following part numbers: 19210066, 12571178, 12576463, 16255240, DLDA, YBLR, YBRY, and YBZP.
How do I provide my VIN?
After you complete your purchase, you will need to send us a message with your vehicle’s 17-digit VIN. We cannot program and ship your order until we receive this information.