Restore Your Bravada’s Performance and Reliability
If you’re dealing with frustrating issues like stalling, no-starts, erratic shifting, or a persistent Check Engine Light in your 1998 Oldsmobile Bravada, a failing Powertrain Control Module (PCM) is often the culprit. As the central computer for your engine and transmission, its health is critical. This isn’t just a replacement part; it’s a complete, ready-to-install solution. We are offering a reliable, tested OEM PCM, part number 16266645, professionally programmed with the latest GM software updates specifically for your vehicle’s VIN.
For over two decades in the shop, I’ve seen countless owners and technicians struggle with sourcing and programming these modules. A trip to the dealership can be costly and time-consuming. Our service eliminates that entire step. By providing your VIN at checkout, you receive a PCM that is truly plug-and-play, restoring the precise fuel delivery, spark timing, and transmission control your vehicle had when it was new. This is the most direct and efficient way to solve complex electronic issues and get your truck running right again.
Case Study: A Tricky Diagnosis
I remember a ’98 GMC Jimmy with the 4.3L V6—the same platform as your Bravada—that came into the bay on a tow truck. The owner had already replaced the fuel pump and ignition control module trying to solve an intermittent no-start and stalling problem. His scanner couldn’t communicate with the PCM. After checking the power and ground circuits to the module, we confirmed they were good. The issue was internal to the computer itself. We installed one of our VIN-programmed PCMs, and the truck fired up on the first try and ran perfectly. This simple swap saved the customer hundreds in further diagnostic fees and incorrect parts.
Is Your Vehicle Showing These Signs of PCM Failure?
- ✔ Check Engine Light is illuminated with communication error codes.
- ✔ Common Diagnostic Trouble Codes (DTCs) like P0601 (Internal Memory Checksum Error) or P0605 (ROM Error).
- ✔ The engine cranks but refuses to start.
- ✔ Unexplained drop in fuel economy.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ The vehicle stalls unexpectedly while driving or at idle.
- ✔ No communication between the scan tool and the PCM.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electronic work.
- ✔ Locate the PCM: On your 1998 Bravada, the PCM is typically located in the engine compartment. On similar GM trucks and vans, it can be on the driver’s side inner fender or near the battery.
- ✔ Disconnect the Old Module: Carefully release the locking tabs on the electrical connectors and pull them straight out. Avoid bending the pins. Unbolt the module from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed PCM onto the bracket and securely re-attach the electrical connectors. You should hear a ‘click’ as they lock into place.
- ✔ Reconnect Power: Re-attach the negative battery terminal and tighten it securely.
- ✔ Final Steps: In some cases, a simple security relearn procedure may be necessary. This typically involves turning the key to the ‘ON’ position for 10-15 minutes. We can provide instructions if needed. Start the vehicle and check for proper operation.
Verified Vehicle Compatibility
This PCM is a direct replacement for service number 16266645 and is compatible with several other part numbers, including 09355699, 16250279, 16258815, and 09366810. It fits a wide range of GM vehicles from 1998-1999. While we’ve targeted the 1998 Bravada PCM, please see the comprehensive list below to confirm fitment for your specific truck, van, or SUV.
Frequently Asked Questions
Is this part ready to install out of the box?
Yes! This PCM comes fully programmed to the 17-digit VIN you provide after your purchase. This makes it a true plug-and-play solution, with no dealer visit required.
What information do I need to provide?
After you complete your purchase, you will need to send us your vehicle’s VIN. This allows us to load the correct, updated GM software for your specific vehicle configuration.
Do I need to do a security relearn procedure?
On many of these GM vehicles, no further action is needed. However, some may require a simple key-cycle security relearn that you can do yourself in about 15 minutes. We can provide easy-to-follow instructions upon request.
Is this a new part?
No, this is a high-quality, tested OEM computer sourced from a salvaged vehicle. This provides OEM reliability and function at a significant cost saving compared to a new module from a dealer.
Will this fix my vehicle’s problem?
If your vehicle’s issues match the symptoms of a failing PCM and it has been properly diagnosed, this part is the correct solution. It resolves issues like internal module errors (P0601), no-start conditions, and poor engine performance directly caused by the computer.
What if my original part number is slightly different?
This module replaces several part numbers, including 09355699, 16250279, and more. As long as your vehicle is on the compatibility list, this programmed module will function correctly.