Is Your GM Truck or SUV Running Rough?
If your 1998-1999 GM vehicle is experiencing frustrating issues like stalling, erratic shifting, poor fuel economy, or a persistent check engine light, a failing Powertrain Control Module (PCM) is often the culprit. As the central computer, the PCM is responsible for managing critical engine and transmission functions. When it starts to fail, it can cause a wide range of problems that can leave you stranded. This isn’t just an inconvenience; it’s a critical component failure that needs immediate attention.
This listing is for a genuine, used OEM Powertrain Control Module, part number 09355699. We take the guesswork and high cost out of the equation by professionally programming this module to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This ensures that it has the correct software and calibrations for your engine, transmission, and options, along with the latest updates from GM for optimal performance and reliability.
From the Diagnostic Bay
We had a ’99 Chevy Tahoe in the shop that was driving the owner crazy. It would randomly stall at stoplights and had a harsh 1-2 shift that felt like being rear-ended. He’d already replaced the fuel pump and a few sensors with no luck. After hooking up our diagnostic scanner, we noticed erratic data from the PCM. Instead of a costly trip to the dealer, we sourced a quality used module like this one, programmed it to the Tahoe’s VIN, and performed a quick CASE relearn after installation. The difference was night and day. The engine idled perfectly, the transmission shifted smoothly, and the owner was thrilled to have his reliable truck back. A failing computer can mimic a dozen other problems, and a correctly programmed replacement is often the direct fix.
Common Symptoms of a Failing PCM
- ✔ Check Engine Light is on with various trouble codes (DTCs).
- ✔ Engine stalling, misfiring, or running rough.
- ✔ Difficulty starting or a no-start condition.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Noticeable decrease in fuel economy.
- ✔ Failure to pass emissions testing.
- ✔ Communication errors with diagnostic scan tools.
Why Choose Our Programmed 1998 Bravada PCM?
Getting the right computer for your vehicle is crucial. A generic, non-programmed module from a junkyard simply won’t work. It needs to be calibrated specifically for your vehicle’s systems. Our service simplifies this complex process. By providing us with your VIN during checkout, you receive a unit that is ready for installation. This module is a direct replacement for several part numbers, including 16266645, 9355699, 16250279, 16258815, 09366810, and 9366810, ensuring broad compatibility across a wide range of GM trucks, vans, and SUVs from this era.
Installation is straightforward for any competent DIY mechanic or professional technician. Once installed, you may need to perform a security relearn procedure and a Crankshaft Variation (CASE) relearn, which can be done with a capable bi-directional scan tool. This ensures the PCM communicates correctly with your vehicle’s anti-theft system and crankshaft position sensor for smooth operation.
Don’t let a faulty computer keep your reliable GM vehicle off the road. This programmed 1998 Bravada PCM is the most effective and economical solution to restore its performance, reliability, and drivability. Order today and get your truck or SUV back to running the way it should.
Frequently Asked Questions
Do I need to send my old PCM in?
No, there is no core charge or need to send your original module to us. This is a direct purchase of a replacement unit that we program for you.
Is this part difficult to install?
The physical installation is typically simple, involving disconnecting the battery and swapping the module. However, a security relearn and a CASE relearn procedure are often required after installation. This requires a bi-directional scan tool, which most professional repair shops have.
What information do you need from me?
After you complete your purchase, you must provide us with your vehicle’s 17-digit VIN. We cannot program or ship the module without it. This ensures the software we load is a perfect match for your vehicle’s configuration.
How do I know if this PCM will fit my vehicle?
This module, part number 09355699, fits a wide variety of 1998-1999 GM trucks, vans, and SUVs. Please check the detailed fitment list on this page or match your original part number to one of the compatible numbers listed (09355699, 16266645, 9355699, 16250279, etc.) to ensure compatibility.
What is a CASE Relearn?
A CASE (Crankshaft Angle Sensor Error) Relearn is a procedure that calibrates the PCM to the specific signal of your vehicle’s crankshaft position sensor. It’s necessary for accurate misfire detection and smooth engine operation. Failure to perform this procedure after replacing the PCM may result in a check engine light.