Restore Your GM Truck’s Brain and Brawn
Is your Escalade, Silverado, or Tahoe suffering from baffling electrical issues, a persistent check engine light, or poor performance? You’re not alone. The Powertrain Control Module (PCM) is the central command center of your vehicle, and when it begins to fail, it can cause a cascade of frustrating problems. This pre-programmed PCM is the definitive, reliable solution to restore your truck’s original power, efficiency, and dependability, getting you back on the road with confidence.
Common Symptoms & Your Solution
A failing PCM can manifest in numerous ways, often mimicking other component failures and leading to costly, incorrect repairs. If you’re experiencing any of the following, this module is the likely solution:
- Persistent Check Engine Light (CEL) with codes like P0601, P0602, or P0606
- Rough or erratic idling
- Poor fuel economy
- Engine stalling or refusing to start
- Harsh or incorrect transmission shifting
- Communication errors with diagnostic scan tools
This replacement 2003-2006 Escalade ESV PCM 89017734 is programmed specifically to your vehicle’s VIN, ensuring it corrects these issues and functions exactly as the original manufacturer intended.
Features & Benefits
- ✔ VIN-Specific Programming: We flash this module with the latest GM software updates using your vehicle’s VIN, ensuring perfect compatibility and optimal performance right out of the box.
- ✔ Plug & Drive Installation: This unit is designed for a straightforward installation, eliminating the need for expensive dealership programming or complex security relearn procedures on most vehicles.
- ✔ Resolves Common Faults: Directly addresses internal module errors, communication faults, and erratic engine behavior caused by a failing computer.
- ✔ Extensive Compatibility: A direct replacement for a wide range of service numbers including 89017750, 12582605, 12589463, 12602802, and 89017734, ensuring a perfect fit for dozens of GM trucks and SUVs.
- ✔ One-Year Replacement Coverage: This unit is backed by our one-year replacement warranty.
Expert Insight from the Garage
As a technician, I’ve seen countless GMT800 platform trucks and SUVs with these exact symptoms. The PCM is typically located under the battery tray on the driver’s side frame rail. Over two decades, constant heat cycles from the engine and vibrations from the road cause the delicate internal solder joints to develop micro-fractures. This leads to the intermittent and confusing issues you’re likely facing. Replacing the module with a properly programmed unit like this 2003-2006 Escalade ESV PCM 89017734 isn’t just a repair; it’s a restoration of the vehicle’s core electronic stability.
Simple Ordering Process
- Confirm this part number (89017734) or one of the compatible service numbers matches your vehicle’s needs.
- Complete your purchase.
- Reply to our follow-up email or add a note to your order with your vehicle’s 17-digit VIN.
- We program the module and ship it directly to you, ready for installation.
Take the guesswork out of your repair. By providing a fully programmed 2003-2006 Escalade ESV PCM 89017734, we help you get the job done right the first time, saving you time, money, and the headache of a trip to the dealer.
Frequently Asked Questions
Do I need to do any programming after I receive it?
No. We program the PCM with the latest GM calibrations using the VIN you provide. For most vehicles, it is a simple plug-and-drive installation. Some vehicles may require a security relearn procedure, which is a simple process that can be done without any special tools.
Where is the PCM located on my vehicle?
On the vast majority of compatible models like the Silverado, Tahoe, and Escalade, the PCM is located on the driver’s side frame rail, underneath the battery and battery tray.
What is the process after I place my order?
After you purchase, you must provide us with your 17-digit Vehicle Identification Number (VIN). You can add it as a note during checkout or reply to your order confirmation email. We cannot ship your part until we have your VIN to program the module.
Will this fix my specific check engine light codes?
This PCM is a direct solution for internal module fault codes like P0601, P0602, P0606, and other communication-related errors. If your codes are for specific sensors (like an oxygen sensor), you should diagnose that component first. However, a faulty PCM can sometimes cause false sensor codes.
Is this compatible with other part numbers?
Yes, this unit is a direct replacement for several service numbers, including 89017750, 12582605, 12589463, and 12602802. Please check the fitment list to ensure it matches your specific make, model, and year.