Restore Peak Performance to Your GM Vehicle
If you’re dealing with frustrating engine problems like stalling, no-starts, erratic shifting, or a persistent check engine light, the heart of the issue is often a failing Powertrain Control Module (PCM). This isn’t just an inconvenience; it affects your vehicle’s reliability, fuel economy, and safety. This replacement PCM, part number 89017733, is the definitive solution, arriving at your door fully programmed with the latest GM software tailored specifically to your vehicle’s VIN. Get your truck or van running like it should, without the exorbitant costs and delays of a dealership visit.
From the Diagnostic Bay: The Intermittent No-Start Nightmare
I once had a 2003 Silverado 2500 with the 8.1L in my shop that was driving its owner crazy. It would start and run perfectly for weeks, then suddenly refuse to start. No crank, no communication with the scan tool. After checking all the usual suspects—battery, starter, grounds—I noticed the failures only happened on hot days after a long drive. By connecting a scan tool and monitoring live data during a test drive, I saw the PCM’s internal temperature skyrocket just before it would cut out. The internal processor was failing under heat soak. We installed a VIN-programmed PCM just like this one, and the truck has been starting reliably ever since. This isn’t just a part; it’s a permanent fix for a tricky problem.
Is Your GM Truck or Van Showing These Signs?
A failing PCM can manifest in numerous ways. If you’re experiencing any of the following, this module is likely the solution you need. Look out for common Diagnostic Trouble Codes (DTCs) like P0601, P0602, P0606, or U-series communication codes.
- ✔ Vehicle refuses to start or has intermittent starting issues.
- ✔ Check Engine Light is on with PCM-related fault codes.
- ✔ Poor or erratic automatic transmission shifting.
- ✔ A noticeable drop in fuel economy.
- ✔ Engine stalling, sputtering, or running rough.
- ✔ Communication errors with your OBD-II scan tool.
- ✔ Loss of spark or injector pulse signals.
The Smart Solution: A Pre-Programmed 2003 Yukon XL 2500 PCM
Why choose this module? It’s simple: we handle the most complex part of the job for you. Dealerships charge a premium for the part and then add hours of labor for diagnostics and programming. We eliminate that. By providing us with your Vehicle Identification Number (VIN) at checkout, you receive a module that is loaded with the most current GM-certified software for your exact vehicle configuration. This ensures all systems—from the engine and transmission to the anti-lock brakes—function in perfect harmony, restoring factory performance and efficiency.
A Straightforward Guide to Installation
Replacing the PCM is a job most DIYers can handle with basic tools. While locations vary slightly, the process is generally the same. For most trucks like the Yukon, Silverado, and Sierra, you’ll find it under the battery tray on the driver’s side.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and secure it away from the post.
- Locate the PCM: On most trucks, this involves removing the battery and the battery tray to access the module. On vans like the Express or Savana, it’s typically located in the rear of the engine compartment on the driver’s side.
- Disconnect Connectors: Carefully unclip the wiring harness connectors from the old PCM. They have locking tabs, so don’t force them. Note their color and position.
- Remove the Old Module: Unbolt the old PCM from its mounting bracket.
- Install the New Module: Bolt your new, pre-programmed PCM into place and securely reconnect the wiring harnesses.
- Reconnect Battery: Re-install the battery tray and battery, then reconnect the negative battery terminal.
- Perform Security Relearn: You may need to perform a simple security relearn procedure to sync the new PCM with your vehicle’s anti-theft system. This typically involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating two more times.
Verified Vehicle Compatibility
This module is a direct-fit replacement for a wide range of GM vehicles and interchanges with numerous service numbers, including 12581565, 12576106, 12578127, and 89017733. Please confirm your vehicle is on the list below.
- Chevrolet Avalanche 2500 (2003)
- Chevrolet Corvette (2004) – with ID 12581565
- Chevrolet Express 1500/2500/3500 Van (2003)
- Chevrolet S10 Pickup (2003) – 4.3L
- Chevrolet Silverado 1500 Pickup (2003) – 4.3L
- Chevrolet Silverado 2500/3500 Pickup (2003) – 8.1L Gasoline
- Chevrolet Suburban 2500 (2003) – 8.1L
- Chevrolet Astro Van (2003)
- Chevrolet Blazer S10 (2003)
- Cadillac CTS (2004) – Base, with ID 12581565
- GMC Jimmy S15 (2003)
- GMC Safari Van (2003)
- GMC Savana 1500/2500/3500 Van (2003)
- GMC Sierra 1500 Pickup (2003) – 4.3L
- GMC Sierra 2500/3500 Pickup (2003) – 8.1L Gasoline
- GMC Sonoma (2003) – 4.3L
- GMC Yukon XL 2500 (2003) – 8.1L
Frequently Asked Questions
Do I need to do anything special after installing this PCM?
In most cases, you will need to perform a simple security relearn procedure, also known as a ‘key cycle’. This allows the new PCM to recognize your vehicle’s anti-theft system. The process usually takes about 30 minutes and requires no special tools.
How do I provide my VIN for programming?
After you complete your purchase, we will contact you to request your vehicle’s 17-digit VIN. We cannot ship your module until we receive this information, as the programming is specific to your truck.
Is this part guaranteed to be compatible with my vehicle?
Yes. As long as your vehicle’s year, make, model, and engine match our compatibility list, this module is the correct fit. The VIN programming ensures it works perfectly. It replaces service numbers 12581565, 12570557, 12576106, 89017733, and more.
What if my original part number doesn’t match 89017733 exactly?
That’s very common. GM uses many different service numbers for the same physical part. This module is a compatible replacement for all service numbers listed in the description. As long as your vehicle model is listed, this part will work.
What tools will I need for the installation?
You’ll need basic hand tools, typically a socket set with extensions (8mm, 10mm, 13mm are common), and possibly a flathead screwdriver to help with connector clips. No specialized electronic tools are required.