Get Your GM Truck Running Right Again
Is your trusty truck, van, or SUV giving you headaches? If you’re dealing with frustrating issues like stalling, erratic shifting, a no-start condition, or a persistent Check Engine light, a failing Powertrain Control Module (PCM) is often the culprit. This isn’t just a part; it’s the brain of your vehicle’s engine. We offer a straightforward, reliable solution: a genuine used GM engine computer, part number 9355699, professionally programmed specifically for your vehicle. Stop the guesswork and get back the dependable performance you rely on.
Common Symptoms of a Failing GM PCM & Your Solution
A faulty PCM can cause a cascade of confusing problems. If you’re experiencing any of the following, this module is the definitive fix you need:
- Engine stalling or cutting out while driving
- Failure to start, even with a good battery and starter
- Harsh or unpredictable automatic transmission shifting
- Poor fuel economy and reduced engine power
- Check Engine Light with communication error codes (e.g., P0601, P0605, P0606)
- Inaccurate or non-functioning dashboard gauges
This isn’t a generic, one-size-fits-all part. We flash this 1999 Escalade PCM 9355699 with the latest GM software updates using your vehicle’s unique VIN. This ensures perfect communication with your engine, transmission, and anti-theft system, making installation as simple as swapping the component.
Features & Benefits
- ✔ Plug & Play Installation: This computer arrives pre-programmed to your specific VIN. No expensive trips to the dealer for programming are required.
- ✔ Cost-Effective Repair: Get a reliable, tested component from a salvaged vehicle at a fraction of the cost of a new unit.
- ✔ Updated GM Software: We flash the module with the newest calibration from General Motors, often improving performance and efficiency over the original programming.
- ✔ Guaranteed Compatibility: By programming to your VIN, we ensure this module is a perfect match for your vehicle’s options and systems. This unit is a direct replacement for part numbers 09355699, 16266645, 16250279, 16258815, 09366810, and 9366810.
- ✔ Restored Dependability: Solve complex electronic issues and restore the smooth operation and reliability your vehicle was built for.
- ✔ Peace of Mind Included: This unit is backed by our one-year replacement warranty, giving you confidence in your repair.
An Expert’s Note on GM’s Passlock System
As a tech who’s spent decades working on these GM trucks, I can’t stress this enough: VIN programming is not optional. Many of these vehicles use a Passlock or VATS anti-theft system that is tied directly to the PCM. A module with the wrong programming won’t just run poorly—it will prevent the engine from starting altogether. By providing us with your VIN, you’re not just getting a part; you’re getting a guaranteed solution that bypasses one of the biggest headaches in GM repair, ensuring your vehicle recognizes the new computer and fires right up.
Take control of your repair and get your vehicle back in service. This pre-programmed 1999 Escalade PCM 9355699 is the smartest way to fix your engine management problems correctly the first time.
Frequently Asked Questions
What is a PCM and what does it do?
The Powertrain Control Module (PCM), also known as the Engine Control Unit (ECU), is a computer that controls all aspects of your vehicle’s engine and transmission. It manages fuel injection, ignition timing, emissions systems, and shift points to ensure optimal performance, fuel economy, and reliability.
Is this computer ready to install when it arrives?
Yes. After you purchase, you will need to provide us with your vehicle’s 17-digit VIN. We use this to program the computer with the correct software for your specific make, model, and options. It will arrive ready for you to install without any additional programming required.
How do I provide my VIN?
After completing your purchase, please send us a message with your vehicle’s VIN. You can typically find the VIN on your driver’s side dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.
Will this fix my specific problem?
This PCM is a direct solution for issues caused by a faulty engine computer, such as no-start conditions, stalling, and specific diagnostic trouble codes. While it resolves a wide range of common problems, we always recommend having a qualified mechanic diagnose your vehicle to confirm the PCM is the point of failure before ordering.
Does this fit vehicles other than the 1999 Escalade?
Absolutely. This PCM, identified by part number 9355699, fits a very wide range of GM trucks, vans, and SUVs from the late 1990s. Please check the detailed fitment list on this page to confirm compatibility with your specific vehicle.
What is the security relearn procedure?
On some GM vehicles, a simple security relearn procedure may be necessary after installation. This typically involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating two more times. This allows the vehicle’s body control module to sync with the new PCM. We include simple instructions if this is required for your vehicle.