Is Your Escalade Running Rough, Stalling, or Refusing to Start?
Dealing with a problematic 1999 Cadillac Escalade can be incredibly frustrating. When the very brain of your vehicle—the Powertrain Control Module (PCM)—starts to fail, it can cause a cascade of confusing issues, from a persistent check engine light to unpredictable performance that leaves you stranded. Don’t let a faulty computer keep your reliable and capable SUV off the road. This is the straightforward, dependable solution you need to restore your vehicle’s performance and your peace of mind.
Common Symptoms & Your Direct-Fit Solution
If you’re experiencing any of the following, a failing PCM is the most likely culprit. This unit is the definitive fix for:
- Erratic engine performance, including stalling, surging, or a rough idle
- Failure to start or intermittent starting problems
- A persistent Check Engine Light (CEL) that won’t clear
- Diagnostic Trouble Codes (DTCs) related to the processor, such as P0601, P0604, or P0606
- Poor fuel economy and shifting issues with the transmission
- Failure to pass an emissions or smog test
This replacement 1999 Escalade Engine Computer is meticulously programmed to your vehicle’s unique VIN, ensuring it works seamlessly right out of the box.
Features & Benefits
- ✔ VIN-Programmed for Your Escalade: We flash this computer with the latest GM software updates using your specific VIN. This eliminates the need for an expensive trip to the dealership for programming.
- ✔ Plug-and-Play Installation: Once programmed, this module is ready for a direct, straightforward installation. Simply disconnect the battery, swap the modules, and reconnect.
- ✔ Restored Factory Performance: By correcting engine and transmission control signals, this module restores the smooth power, crisp shifting, and fuel efficiency you expect from your Cadillac.
- ✔ Cost-Effective and Reliable: Get a dependable, tested OEM part without the high cost of a new unit. It’s the smart, practical choice for getting your truck back in top shape.
- ✔ One-Year Replacement Coverage: This unit is backed by our one-year replacement warranty, giving you confidence in your purchase.
An Expert’s Note on GM Security Systems: Many people don’t realize that on these late-90s GM vehicles, the PCM is a key part of the PassLock security system. A failing computer can cause a no-start condition that mimics a bad key or ignition switch. Swapping in a generic, non-programmed module from a junkyard will almost always result in the security system disabling the vehicle. Our VIN-programming service correctly syncs the module to your vehicle’s systems, making the post-installation security relearn procedure (if required) simple and successful.
Frequently Asked Questions
What’s the difference between a PCM, ECM, and ECU?
These terms are often used interchangeably. PCM (Powertrain Control Module) is the most accurate for this vehicle, as it controls both the engine and transmission. ECM (Engine Control Module) and ECU (Engine Control Unit) are other common names for the same part. This 1999 Escalade Engine Computer serves all these functions.
How do I provide my VIN number?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive the VIN, as the programming is a critical part of the order.
Is this part difficult to install?
Installation is typically straightforward for someone with basic mechanical skills. The module is located in the engine compartment. The process involves disconnecting the battery, unplugging the electrical connectors from the old module, unbolting it, and then installing the new one in the reverse order. Basic hand tools are all that’s required.
Will I need to do anything after installation?
In some cases, a security relearn procedure may be necessary to sync the new computer with your vehicle’s anti-theft system. This is a simple procedure that typically involves turning the key on and off in a specific sequence and does not require special tools. We can provide instructions if needed.
How can I be sure this fits my vehicle?
This module is a direct replacement for part number 16250279 and several other interchangeable numbers listed. As long as your vehicle is on the fitment list and you provide us with the correct VIN, we guarantee it will be the correct, programmed part for your 1999 Escalade.