Restore Your Vehicle’s Brain and Get Back on the Road
Is your truck, van, or SUV suffering from baffling electrical issues, poor performance, or refusing to start? A failing Powertrain Control Module (PCM) is often the culprit, acting like a confused brain for your vehicle’s most critical systems. This replacement module is the definitive solution, arriving pre-programmed to your specific Vehicle Identification Number (VIN). This means you can bypass a costly and time-consuming trip to the dealership; this part is engineered to get your vehicle running right, straight out of the box.
Common Symptoms of a Failing PCM & Your Solution
If you’re experiencing any of the following, a faulty engine computer is a likely cause. This module is designed to correct these problems and restore your vehicle’s original performance and reliability.
- Check Engine Light (CEL) with codes like P0601, P0602, or P0606
- Engine Stalling or Misfiring for no apparent reason
- Rough or Erratic Shifting in automatic transmissions
- Poor Fuel Economy and loss of power
- Complete No-Start Condition where the engine cranks but won’t fire
Installing our Programmed 89017739 PCM is the most effective way to resolve these issues permanently. We handle the complex programming so you can focus on the straightforward installation.
Features & Benefits You Can Count On
- ✔ VIN-Specific Programming Included: We flash the module with the latest GM software updates using your vehicle’s VIN. This ensures perfect communication between the computer and your vehicle’s systems.
- ✔ Plug-and-Play Installation: Because it’s pre-programmed, you can avoid the need for expensive dealer-specific tools. In most cases, a simple security relearn procedure is all that’s needed.
- ✔ Guaranteed Compatibility: This is a direct-fit replacement for OEM part numbers 89017739 and 12586243, ensuring a perfect match for a wide range of 2004 GM vehicles.
- ✔ Restored Performance & Efficiency: A new, correctly functioning PCM ensures your engine receives the right signals for optimal fuel delivery, ignition timing, and transmission control.
- ✔ Peace of Mind Protection: This unit is backed by our one-year replacement warranty.
An Expert’s Note on PCM Replacement: Think of the PCM as the central command center for your vehicle. Grabbing a used one from a salvage yard might seem like a cheap fix, but it’s a gamble. That module is programmed for a different vehicle’s VIN, options, and security system. It won’t work correctly without being wiped and reprogrammed by a dealer—a service that can often cost more than the part itself. Our solution provides a fully tested and correctly programmed module from the start, saving you from that frustrating and expensive second step. It’s the smart, reliable way to do the job right the first time.
Don’t let a faulty computer keep your reliable GM vehicle off the road. By providing us with your VIN at checkout, you’ll receive a Programmed 89017739 PCM that is ready to restore function and give you confidence in your vehicle again. Order today and take the first step towards a lasting repair.
Frequently Asked Questions
What is a PCM and what does it do?
The Powertrain Control Module (PCM), also known as an Engine Control Module (ECM), is your vehicle’s main computer. It controls all aspects of engine and transmission function, from fuel injection and spark timing to emission controls and shift points, to ensure optimal performance, efficiency, and safety.
Is any additional programming required after installation?
No. We program the PCM to your vehicle’s VIN before it ships. In most GM vehicles, you will need to perform a simple security relearn procedure, also known as a CASE relearn, which can typically be done without special tools. This syncs the new module to your vehicle’s anti-theft system.
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive this information, as the programming is essential for the part to function.
Is this part difficult to install?
For someone with basic mechanical skills, the physical installation is straightforward. It typically involves disconnecting the battery, unplugging the electrical connectors from the old module, unbolting it, and then bolting the new one in its place. The location varies by model but is generally accessible in the engine bay.
Do I need to send my old part back?
This listing does not require you to return your original module (no core charge). You can keep or dispose of your old part as you see fit.
What if this part doesn’t fix my problem?
While this module fixes the common symptoms listed, proper vehicle diagnosis is key. We recommend confirming the PCM is the point of failure before ordering. If you have any issues with the module itself, remember that this unit is backed by our one-year replacement warranty.