Is Your GM Truck or SUV Giving You Headaches?
If you’re dealing with a no-start condition, erratic shifting, a persistent check engine light, or other bizarre electrical issues on your 2003-2006 Yukon, Sierra, or Silverado, the Powertrain Control Module (PCM) is a very likely culprit. As the brain of your vehicle’s engine and transmission, when it fails, it can cause a cascade of problems that are frustrating and difficult to diagnose. I’ve seen hundreds of these GMT800 platform trucks in my shop, and a faulty PCM is one of the most common issues we encounter as they age.
Real-World Diagnosis: “A customer’s ’05 Tahoe came in last week with these exact symptoms. It would randomly stall at red lights and had a harsh 1-2 shift. The scan tool showed multiple communication loss codes (U-codes). After verifying the power and grounds to the module were good, we pinpointed the internal PCM failure. Swapping in a VIN-programmed module like this one had it running perfectly in under 30 minutes.”
The Simple, Reliable Solution: A VIN-Programmed PCM
Forget the hassle and expense of a dealership visit. This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take a quality, tested PCM and flash it with the latest official GM software calibrated specifically to your vehicle’s VIN. This ensures all factory settings for your engine, transmission, and options are loaded and ready to go. This is the most critical step, and we handle it for you before it even ships.
Common Symptoms of a Failing 2003-2006 Yukon PCM:
- โ Check Engine Light with communication error codes (e.g., U0100).
- โ Vehicle won’t start or cranks but won’t fire.
- โ Harsh or erratic automatic transmission shifting.
- โ Poor fuel economy and engine performance.
- โ Stalling for no apparent reason.
- โ Instrument cluster gauges behaving erratically.
Plug-and-Play Installation: No Dealer Visit Required
Installing your new PCM is straightforward. Because we program it beforehand, you won’t need expensive scan tools or a trip to the dealer for programming. In most cases, you will just need to perform a security relearn procedure, which is a simple process that takes about 30 minutes using only your ignition key.
- Safety First: Disconnect the negative battery terminal.
- Locate the PCM: On most of these trucks and SUVs, it’s located on the driver’s side, under the battery tray and airbox.
- Disconnect Connectors: Carefully unclip the wiring harness connectors. Inspect them for any corrosion or bent pins before proceeding.
- Swap the Module: Remove the old PCM and install the new one in its place.
- Reconnect Everything: Securely plug in the wiring harnesses and reconnect the negative battery terminal.
- Perform Security Relearn: Follow the included instructions to sync the new PCM with your vehicle’s anti-theft system.
This module, part number 89017750, is a direct replacement for a wide range of GM vehicles including the Escalade, Avalanche, Suburban, Hummer H2, and more. It is also compatible with service numbers 12582605, 12589463, 12602802, 89017734, and 28042802, ensuring broad compatibility. Provide your VIN at checkout and get your truck back on the road fast.