Restore Your Vehicle’s Brain and Get Back on the Road
Is your GM vehicle running erratically, stalling unexpectedly, or showing a persistent check engine light that won’t go away? A failing Powertrain Control Module (PCM), also known as an Engine Control Module (ECM), is often the hidden culprit behind these frustrating and complex issues. This pre-programmed module is your direct-fit, professional-grade solution to restore your vehicle’s performance, reliability, and drivability without a trip to the dealership.
Common Symptoms & Your Solution
A faulty PCM can manifest in numerous ways, often mimicking other component failures. If you’re experiencing any of the following, this module is the definitive fix you need:
- Persistent Check Engine Light: Especially with communication error codes like P0601, P0602, or P0606.
- Engine Performance Issues: Including rough idling, hesitation during acceleration, random stalling, or a no-start condition.
- Poor Fuel Economy: An incorrect air/fuel mixture controlled by a failing module can drastically reduce your MPG.
- Erratic Transmission Shifting: The PCM controls shift points; failure can lead to harsh or incorrect gear changes.
- Failed Emissions Test: Inability of the module to properly manage engine systems will often result in a failed smog check.
This Programmed 89017739 PCM is the central command unit for your engine, meticulously flashed with the latest GM software updates specifically for your vehicle’s VIN. This critical programming step ensures that it communicates perfectly with all other onboard systems, providing a seamless and effective repair.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: No need for expensive dealer programming. This module arrives ready to install, flashed to match your exact vehicle configuration.
- ✔ Latest GM Software Updates: We load the newest factory software to improve performance and correct known factory issues.
- ✔ Direct-Fit Replacement: Engineered to be a direct replacement for original part numbers 89017739 and 12586243, ensuring a perfect fit and connection.
- ✔ Plug & Play Installation: Once a simple security relearn procedure is performed (instructions included), your vehicle is ready to go.
- ✔ Solves Complex Issues: The definitive solution for a wide range of electrical and drivability problems that are notoriously difficult to diagnose.
- ✔ One-Year Protection: This unit is backed by our one-year replacement warranty, giving you confidence in your repair.
An Expert’s Note: As a technician with over two decades of experience, I’ve seen countless drivers chase symptoms all over the engine, replacing perfectly good sensors and parts. The real issue was often a faulty PCM. The critical difference with our service is the VIN-specific programming. We ensure this Programmed 89017739 PCM communicates perfectly with your vehicle’s systems—from the transmission to the anti-lock brakes—right out of the box. This step is non-negotiable for a successful repair and prevents the compatibility headaches that come with a generic, un-programmed module.
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the complex programming before we ship the module to you. It will arrive flashed with the latest GM updates and coded to your specific VIN. The only thing you may need to do is a simple security relearn procedure, which can be done without any special tools.
How do I provide my Vehicle Identification Number (VIN)?
After you complete your purchase, you can add your VIN to the order notes or simply reply to your order confirmation email with the 17-digit VIN. We cannot ship your part until we have this information.
What part numbers does this module replace?
This module is a direct replacement for OEM part numbers 89017739 and 12586243. If you are unsure, please contact us with your VIN to verify compatibility.
Is a security relearn procedure required after installation?
Yes, in most cases, a security relearn (often called VATS or Passlock relearn) is necessary to sync the new PCM with your vehicle’s anti-theft system. This is a simple procedure that typically involves turning the key on and off in a specific sequence. We include instructions to guide you through it.
Will this fix my specific problem?
While this Programmed 89017739 PCM is the solution for many engine management issues, we always recommend proper diagnostics. It is the definitive fix for internal module failure codes (like P0601) and a very common cause for the other symptoms listed above.