Restore Peak Performance to Your GM Truck or SUV
Are you battling a persistent Check Engine Light, experiencing frustrating stalling, or noticing poor engine performance in your Oldsmobile Bravada? A failing Powertrain Control Module (PCM) is often the culprit behind these hard-to-diagnose issues. This isn’t just another part; it’s the central computer of your vehicle, and when it falters, everything from fuel economy to transmission shifting can be affected. This replacement 1998-2000 Bravada PCM is the reliable, long-term solution you need to get your vehicle running smoothly again.
We take the guesswork and extra expense out of the repair. Unlike a generic module from a parts store, this PCM arrives at your door fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). We flash it with the latest official GM software updates, ensuring it communicates perfectly with your engine, transmission, and all other onboard systems. This eliminates the need for a costly trip to the dealership for programming, saving you time and hundreds of dollars.
From the Diagnostic Bay
I remember a 1999 GMC Jimmy (which shares this exact PCM with the Bravada) that came into my shop with a maddening intermittent no-start condition. The owner had already replaced the battery, starter, and fuel pump. My scan tool kept losing communication with the PCM. After checking the power and ground circuits to the module, I knew the internal processor was failing. We installed one of our pre-programmed modules, and the truck fired up instantly and never had the problem again. A faulty PCM can mimic a dozen other issues, but a direct-fit, correctly programmed module is a definitive fix.
Is Your Vehicle Showing These Symptoms?
- ✔ Check Engine Light is on with communication error codes (like U0100) or internal fault codes (P0601, P0606).
- ✔ The engine cranks but refuses to start.
- ✔ Unexplained stalling or rough idling.
- ✔ Noticeably worse fuel economy.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Failure to pass an emissions inspection.
- ✔ Other warning lights on the dash appear without a clear cause.
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- ✔ Locate the PCM: On most 1998-2000 Bravada, S10, and Jimmy models, the PCM is located in the engine bay on the right-hand (passenger) side, near the firewall or inner fender.
- ✔ Disconnect and Remove: Carefully unclip the wiring harness connectors. They often have locking tabs that need to be released. Once disconnected, unbolt the old module from its mounting bracket.
- ✔ Install the New Module: Bolt your new, pre-programmed PCM into place. Firmly reconnect the wiring harnesses, ensuring each clip clicks securely into place.
- ✔ Reconnect Power: Reattach the negative battery terminal and tighten it securely.
- ✔ Perform Security Relearn: Your vehicle may require a simple security relearn procedure. Turn the key to the ‘ON’ position for 10-15 minutes, then ‘OFF’ for 10 seconds. Repeat this cycle three times. On the fourth try, the vehicle should start and run normally.
Will This Fit My Vehicle?
This PCM, part number 16263494, is a direct replacement for a wide range of General Motors trucks and vans. While it is the correct 1998-2000 Bravada PCM, it also fits many Chevrolet, GMC, and Isuzu models. It is a compatible replacement for part numbers 16265035, 8162634940, 218-11787, and 21811787. Please use our vehicle fitment tool at the top of the page and provide your VIN upon checkout to guarantee perfect compatibility and programming.
Frequently Asked Questions
Do I need to send my VIN?
Yes, providing your Vehicle Identification Number (VIN) is essential. We use it to program the module with the correct GM software and vehicle-specific parameters, ensuring it works perfectly right out of the box.
Is any additional programming needed after installation?
No. This module arrives fully programmed and ready for installation. The only step you may need to perform is a simple security relearn procedure, which takes about 30 minutes and requires no special tools.
What is a security relearn procedure?
It’s a simple process that syncs the new PCM with your vehicle’s anti-theft system. Instructions are included, but it typically involves cycling the ignition key as described in our installation guide.
Will this fix my transmission shifting problems?
In many cases, yes. The PCM controls engine performance and transmission shift points. If the module is faulty, it can cause erratic shifting. Replacing it often resolves these types of powertrain issues.
Is this part difficult to install for a DIYer?
Not at all. With basic hand tools and our step-by-step guide, most DIY enthusiasts can complete the installation in under an hour. The most important part is ensuring the battery is disconnected before you begin.