Is Your GM Vehicle Running Rough, Stalling, or Refusing to Start?
Dealing with a car that has a mind of its own is incredibly frustrating. If your 2003-2005 Grand Prix, Impala, Monte Carlo, or other compatible GM vehicle is suffering from erratic engine behavior, poor fuel economy, or a persistent Check Engine Light, a failing Powertrain Control Module (PCM) is often the culprit. This isn’t just an inconvenience; it’s a reliability issue that can leave you stranded. You need a dependable solution that gets you back on the road without the exorbitant cost and hassle of a dealership visit. This Programmed 89017735 PCM is the definitive answer.
Common Symptoms & Your Solution
A faulty PCM can manifest in numerous ways, often leading to misdiagnosis and expensive, unnecessary repairs. If you’re experiencing any of the following, this module is your solution:
- Unexpected stalling or engine shut-off while driving
- Harsh or erratic automatic transmission shifting
- A no-start condition where the engine cranks but won’t fire up
- Noticeable decrease in fuel efficiency
- Check Engine Light with Diagnostic Trouble Codes (DTCs) like P0601, P0602, or P0606
- Failure to communicate with diagnostic scan tools
Instead of guessing, you can replace the very brain of your vehicle’s engine management system. We take the complexity out of the process by pre-programming this Programmed 89017735 PCM specifically to your car’s Vehicle Identification Number (VIN). This ensures it works seamlessly with your existing components right out of the box.
Features & Benefits
- ✔ Plug & Drive Installation: This module arrives pre-flashed with the latest GM software updates for your specific VIN. This eliminates the need for expensive on-car programming or a trip to the dealer.
- ✔ Restored Performance & Efficiency: Corrects engine and transmission control issues, restoring the smooth operation and optimal fuel economy you expect from your vehicle.
- ✔ Guaranteed Compatibility: A direct-fit replacement for OEM part numbers 89017735, 12583827, and 12583826, ensuring a perfect match for a wide range of GM cars and minivans.
- ✔ Solve Annoying Electrical Gremlins: A new PCM is often the key to resolving mysterious and persistent electronic issues that other repairs can’t seem to fix.
- ✔ Peace of Mind on the Road: This unit is backed by our one-year replacement warranty. Drive with confidence knowing your vehicle’s core computer is dependable.
Expert Insight: The Smart Choice for At-Home Repair
As a technician, I’ve seen countless vehicle owners spend hundreds on sensors and parts, only to find the root cause was the PCM all along. The biggest hurdle used to be the mandatory, and costly, dealer programming. This Programmed 89017735 PCM changes the game. By flashing the module to your VIN before it even ships, we deliver a professional-grade solution directly to your door. You’re not just buying a part; you’re buying a complete, ready-to-install fix that saves you time, towing fees, and diagnostic headaches. It’s the most efficient way to restore your vehicle’s reliability.
Frequently Asked Questions
How does the VIN programming process work?
It’s simple. After you complete your purchase, you will provide us with your vehicle’s 17-digit VIN. Our technicians then use that VIN to load the exact, most current GM-approved software for your specific vehicle onto the module. This ensures it communicates perfectly with your engine, transmission, and other systems upon installation.
Is this a difficult part to install?
For most of the compatible vehicles, the PCM is located in the engine bay and is relatively accessible. Installation typically involves disconnecting the battery, unplugging the electrical connectors from the old module, unbolting it, and then reversing the process with the new one. Many DIY mechanics with basic tools can perform the swap in under an hour.
Will I need to do anything else after installation?
In some cases, a Crankshaft Variation Relearn (also known as a CASE relearn) may be necessary to prevent a P1336 trouble code. This procedure can be performed with most professional-grade scan tools and is a quick process that synchronizes the new PCM with your engine’s crankshaft position sensor.
What does the Powertrain Control Module (PCM) do?
The PCM is the central computer for your vehicle’s engine and transmission. It controls critical functions like fuel injection, ignition timing, spark, and transmission shift points based on data from dozens of sensors. When it fails, it can cause a wide variety of performance problems.
How can I be sure this fits my vehicle?
Please review the detailed compatibility list provided in this listing. This module is a direct replacement for part numbers 89017735, 12583827, and 12583826. Matching your original part number is the best way to guarantee a perfect fit.