Restore Peak Performance to Your GM Truck
Is your truck running rough, throwing confusing check engine lights, or refusing to start? A failing Powertrain Control Module (PCM) can bring your work to a halt, costing you time and money. This direct-fit replacement PCM is the definitive solution to get your vehicle back on the road, running with the reliability and power you depend on. We professionally program this unit to your vehicle’s specific Vehicle Identification Number (VIN) before it ships, ensuring a straightforward installation process without the need for an expensive trip to the dealership.
Common Symptoms & Your Solution
If you’re experiencing issues like a persistent Check Engine Light, poor fuel economy, rough idling, engine stalling, or communication errors with diagnostic tools (especially DTCs like P0601, P0602, or P0606), a faulty engine computer is the likely culprit. This pre-programmed module is designed to resolve those problems by restoring the critical link between your truck’s sensors and its engine management system. By ordering our 2003 Sierra 3500 PCM 89017733, you’re not just buying a part; you’re getting a reliable fix that restores factory performance.
- โ Plug & Play Installation: Arrives pre-programmed to your exact VIN. Simply install the unit and perform the vehicle’s security relearn procedure.
- โ Latest GM Software: We flash each module with the most current, stable software updates from General Motors, ensuring optimal performance and efficiency.
- โ Solves Running Issues: Eliminates common problems caused by a failing PCM, including stalling, misfires, and harsh transmission shifting.
- โ Direct-Fit Replacement: Guaranteed to fit and function perfectly for all models listed, including service numbers 12581565, 12576106, and 89017733.
- โ No Core Charge: Keep your old part. We don’t require a core return, saving you the hassle and expense of shipping it back.
- โ Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: The Power of Proper Programming
As a technician with over two decades of experience, I’ve seen countless vehicles come in with persistent, hard-to-diagnose issues that were ultimately traced back to a poorly programmed or incorrect control module. It’s more than just getting the engine to start; the PCM controls everything from fuel mixture and spark timing to transmission shift points and torque converter lockup. Using a module flashed with the latest, VIN-specific software, like this 2003 Sierra 3500 PCM 89017733, ensures all vehicle systems communicate flawlessly. This prevents premature transmission wear and restores the crisp, predictable performance your truck had when it was new.
Frequently Asked Questions
How does the programming process work?
After you place your order, you will need to provide us with your vehicle’s 17-digit VIN. Our technicians will use this number to load the correct, updated GM-certified software onto the module. This ensures it is perfectly matched to your truck’s specific options and systems before we ship it to you.
Where can I find my VIN?
Your VIN can be found on a metal plate 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 I need to do anything after installing this PCM?
Yes. After installation, you will need to perform a security relearn procedure (often called a VATS or Passlock relearn). This procedure is simple, requires no special tools, and typically takes about 30 minutes. Instructions are readily available online for your specific model, or you can consult a repair manual.
Is this a guaranteed fix for my check engine light?
This module will resolve any issues and diagnostic trouble codes (DTCs) directly related to a failing PCM. However, if your check engine light is caused by another faulty component (like an oxygen sensor or ignition coil), that part will still need to be addressed. A proper diagnosis is always recommended.
Does this unit support other GM vehicles?
Absolutely. While this is a perfect match for the 2003 Sierra 3500 PCM 89017733, it is also compatible with a wide range of GM trucks, vans, and SUVs from that era, including the Silverado, Suburban, Express, and Savana. Please check the compatibility list to confirm your specific application.