Restore Peak Performance and Reliability to Your GM Truck or SUV
Is your 2004 Cadillac Escalade ESV, Sierra, or Silverado plagued by frustrating issues like a persistent check engine light, erratic shifting, a no-start condition, or poor fuel economy? These are classic signs of a failing Powertrain Control Module (PCM), the central computer that manages your vehicle’s engine and transmission. Don’t let a faulty module keep you off the road. This fully programmed engine computer is the definitive, hassle-free solution to restore your vehicle’s performance and your peace of mind.
Common Symptoms & Your Solution
A failing PCM can cause a wide range of confusing problems. If you’re experiencing any of the following, this module is the solution you need:
- Check Engine Light with communication-related Diagnostic Trouble Codes (DTCs) like P0601, P0605, or P0606.
- Harsh or unpredictable automatic transmission shifting.
- Engine stalling, stumbling, or misfiring for no apparent reason.
- Complete no-start condition where the engine cranks but will not fire.
- Unexplained loss of power and a noticeable drop in fuel efficiency.
This replacement 2004 Escalade ESV PCM 12586242 is professionally programmed with the latest GM software updates specifically for your vehicle’s VIN. This critical step ensures that all systems—from fuel injection to emissions controls—operate exactly as the manufacturer intended, eliminating the guesswork and potential complications of using a generic or un-programmed unit.
Features & Tangible Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash this module using your specific VIN before it ships. This ensures perfect compatibility with your engine, transmission, and factory options for a true plug-and-play installation.
- ✔ Direct-Fit Replacement: Engineered to be a perfect replacement for service numbers 12586242, 19299226, 89017738 and many others. It bolts in just like the original, with no modifications required.
- ✔ Solves Complex Electrical Issues: Restores proper communication between critical vehicle systems, correcting the root cause of many baffling performance problems and clearing stubborn fault codes.
- ✔ Restores Smooth Operation: By precisely managing engine and transmission functions, this module brings back the smooth idle, crisp throttle response, and seamless shifting you expect from your truck or SUV.
- ✔ Backed by Our Guarantee: This unit is backed by our one-year replacement warranty. Drive with confidence knowing your purchase is protected.
Expert Insight: The Power of Proper Programming
Many owners are tempted to install a used computer from a salvage yard, only to find their vehicle still won’t start or runs worse than before. This is because the PCM is locked to the original vehicle’s security system and options. Our pre-programming service is the key to a successful repair. By flashing this 2004 Escalade ESV PCM 12586242 with your VIN, we ensure it’s a perfect digital match for your vehicle, avoiding immobilizer conflicts and ensuring a smooth, successful installation every time.
Frequently Asked Questions
What information do you need from me after I order?
After you complete your purchase, you must provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). This is essential for us to program the module correctly for your specific vehicle before we ship it.
Is this part difficult to install?
The physical installation is straightforward for anyone with basic mechanical skills. It typically involves disconnecting the battery, unplugging the electrical connectors, and unbolting the old module. After installing the new one, you may need to perform a simple security relearn procedure, which does not require any special tools.
What is the security relearn procedure?
For most GM vehicles of this era, the security relearn involves a simple 30-minute key-cycle process. You’ll attempt to start the engine, leave the key in the ‘ON’ position for 10 minutes until the security light goes out, turn the key off, and repeat the process two more times. Instructions are readily available online for your specific model.
How can I be sure this fits my vehicle?
This module is a direct replacement for units with service numbers 12586242, 19299226, 89017738, YFKD, YFKF, YFKH, YFKJ, YFKX, YFXL, YFXM, YFXN, YFXP, or YHTN. Please check the sticker on your current computer to confirm one of these numbers is present. If you’re unsure, contact us with your VIN, and we’ll be happy to verify compatibility.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of the existing PCM (e.g., codes P0601-P0606), then this part is the correct fix. However, a check engine light can be caused by many other components. Proper vehicle diagnosis is always recommended to ensure you are purchasing the correct part for your specific problem.