Get Your Workhorse Back on the Job
When your 2003 GMC Savana 3500 is down, your business is down. A faulty Powertrain Control Module (PCM) can bring your operations to a grinding halt with issues ranging from a no-start condition to unpredictable stalling and poor performance. Get back on the road and back to work fast with this fully programmed PCM, designed to be the reliable heart of your van’s electronic system. We flash this module with the latest GM software updates using your vehicle’s specific VIN, ensuring it’s ready for installation right out of the box.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a failing PCM is the likely culprit:
- Erratic or harsh transmission shifting
- Engine stalling or refusing to start
- Persistent Check Engine Light (CEL) with codes like P0601, P0602, or P0606
- Noticeable drop in fuel economy
- Communication errors with diagnostic scan tools
This isn’t just a replacement part; it’s the definitive solution to these frustrating electronic problems. Our expertly programmed 2003 GMC Savana 3500 PCM arrives ready to install, taking the guesswork and expensive dealership programming out of the equation. Restore the dependable performance your work van needs to be a reliable asset, not a liability.
Features & Benefits
- ✔ VIN-Programmed for Your Van: Arrives flashed to your specific vehicle. This eliminates the need for expensive programming at a dealership, saving you time and money.
- ✔ Latest GM Software Updates: We install the most current factory software, ensuring optimal engine performance, fuel efficiency, and transmission shifting.
- ✔ Direct Fit & Function: Engineered to be a direct replacement for the original module, guaranteeing a straightforward installation process with no modifications required.
- ✔ Rigorously Inspected: Each module undergoes a thorough inspection and testing process to ensure it meets strict quality standards for dependable, long-term performance.
- ✔ Broad Compatibility: A direct solution for a wide range of GM trucks, vans, and SUVs, including service numbers 12581565, 12576106, and 89017733.
- ✔ This unit is backed by our one-year replacement warranty.
Expert Tech Tip: As a veteran tech, I’ve seen it all. Before you replace your module, take five minutes to inspect your battery terminals and main engine ground straps. A loose or corroded ground connection can cause voltage drops that mimic the symptoms of a bad PCM. Ensuring your electrical foundation is clean and tight is the best way to guarantee our programmed 2003 GMC Savana 3500 PCM performs flawlessly from the moment you turn the key.
Frequently Asked Questions
Do I need to program this module?
No. We program the module to the VIN you provide before we ship it. It will arrive ready for installation, requiring no additional programming from a dealer or mechanic.
Where do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We will then program the module specifically for your truck before shipping.
Is this a simple plug-and-play installation?
Yes, for the vast majority of vehicles. You simply disconnect the battery, swap the old module with this one, and reconnect the battery. In some rare cases, a security relearn procedure (often called a CASE relearn) may be necessary, which can be done without special tools.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of your existing PCM (such as code P0601), this module is the correct solution. It’s crucial to ensure the root cause of the issue is the module itself and not a faulty sensor or wiring problem.
What if my original part number isn’t 12576106?
This module is a direct replacement for a wide range of GM service numbers, including 12581565, 12570557, 12578127, and 89017733, among others listed in the compatibility chart. As long as your vehicle is listed, this is the correct part.
Is this the same as an ECM or Engine Computer?
Yes. The terms Powertrain Control Module (PCM), Engine Control Module (ECM), and Engine Computer are often used interchangeably for this component, which controls both engine and transmission functions in your 2003 GMC Savana 3500 PCM.