Restore Peak Performance to Your GM Truck or SUV
Is your Oldsmobile Bravada, Chevy S10, GMC Jimmy, or another compatible GM vehicle suffering from perplexing issues like stalling, rough idling, poor fuel economy, or an illuminated Check Engine Light? These are classic signs of a failing Powertrain Control Module (PCM), the central computer responsible for managing your engine’s performance. A faulty PCM can disrupt everything from fuel injection and ignition timing to transmission shifting, leaving you with an unreliable and frustrating driving experience. This replacement module, part number 16265035, is the definitive solution to restore your vehicle’s factory performance and reliability.
The Plug-and-Play Solution: Pre-Programmed for Your Vehicle
Don’t waste time and money on a trip to the dealership. We take the hassle out of the repair process by programming this module specifically for your vehicle before it ships. Simply provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN) during checkout, and our technicians will flash the unit with the latest, most up-to-date GM factory software for your exact make and model. This ensures that once you receive the part, it’s ready for a straightforward installation, often referred to as “plug-and-play.” While a simple security relearn procedure may be necessary after installation (a process you can do yourself in about 15 minutes), the critical and complex programming is handled by our experts.
From the Diagnostic Bay
We once had a 1999 GMC Jimmy come into the shop with a persistent P0300 (Random Misfire) code that the owner had been chasing for months. He had already replaced the spark plugs, wires, distributor cap, and rotor. He even replaced the fuel injector spider assembly. The misfire was intermittent but most noticeable under load. After confirming fuel pressure and spark were good, we hooked up our diagnostic scanner and monitored the PCM data. We noticed the ignition control signal was erratic. Instead of diving deeper into the wiring, we did a quick swap with a known-good PCM. The misfire vanished instantly. The original PCM’s ignition driver circuit had failed internally—a common issue on these units. This is a perfect example of how a faulty 1998-2000 Bravada PCM can mimic other, more common component failures, costing you time and money on unnecessary parts.
Common Symptoms of a Failing PCM
- ✔ Check Engine Light is on with various trouble codes (DTCs).
- ✔ Engine stalling or shutting off unexpectedly while driving.
- ✔ Rough or erratic idling.
- ✔ Noticeable decrease in fuel economy.
- ✔ Difficulty starting the engine or a no-start condition.
- ✔ Harsh or incorrect automatic transmission shifting.
- ✔ Failure to pass emissions testing.
- ✔ Communication errors with diagnostic scan tools.
Guaranteed Fitment and Compatibility
This Powertrain Control Module is a direct replacement for a wide range of GM trucks and vans from the late 1990s and early 2000s. It is compatible with original equipment part numbers 16263494, 16265035, 8162634940, 218-11787, and 21811787. Whether you’re driving a Chevy Blazer, GMC Sonoma, Isuzu Hombre, or a Savana/Express work van, this module is engineered to restore the precise engine management your vehicle needs. Please verify the part number on your existing module or consult the detailed fitment list to ensure proper compatibility.
By ordering this pre-programmed 1998-2000 Bravada PCM, you are not just buying a part; you are getting a comprehensive solution that saves you diagnostic headaches, expensive dealership programming fees, and the downtime associated with complex repairs. Get your vehicle back on the road quickly and confidently.
Frequently Asked Questions
What exactly does the Powertrain Control Module (PCM) do?
The PCM is the main computer that controls your vehicle’s engine and transmission. It takes in data from dozens of sensors (like oxygen sensors, crankshaft position sensor, etc.) and uses that information to control fuel injection, ignition timing, and transmission shift points to ensure optimal performance, fuel efficiency, and low emissions.
Do I need to get this module programmed by a dealer?
No. That’s the primary benefit of our service. We program the module with your vehicle’s specific VIN and the latest GM software before we ship it to you. This means it arrives ready for installation, saving you a trip to the dealership and their associated programming fees.
Where is the PCM located on my 1999 Oldsmobile Bravada?
On the 1998-2000 Oldsmobile Bravada, as well as the Chevy S10 Blazer and GMC S15 Jimmy, the PCM is typically located in the engine compartment on the right-hand (passenger) side, near the firewall or inner fender.
Will this fix my Check Engine Light?
If the Check Engine Light is caused by an internal failure of your existing PCM, then yes, this replacement module will resolve the issue. It’s crucial to ensure a proper diagnosis has been performed, as the light can be triggered by many other failing components like sensors or wiring.
What is the security relearn procedure?
After installation, you may need to perform a simple security relearn to sync the new PCM with your vehicle’s anti-theft system. This procedure typically involves turning the key to the ‘ON’ position for 10-15 minutes, then ‘OFF’ for 10 seconds, and repeating this cycle three times. This allows the components to recognize each other. Instructions are readily available online for GM’s Passlock system.