Restore Your Bravada’s Brainpower and Get Back on the Road
Is your 1998 Oldsmobile Bravada acting up? Stalling, running rough, or throwing a stubborn Check Engine Light? As a technician with over two decades of experience under the hood, I’ve seen these symptoms countless times. Often, the root cause isn’t a dozen different sensors, but the one component that controls them all: the Powertrain Control Module (PCM). This isn’t just a replacement part; it’s a reliable, cost-effective solution to bring your vehicle back to life. We offer a genuine, used OEM 1998 Bravada PCM that has been meticulously tested and is ready for installation.
The biggest headache with replacing a PCM is the programming. A trip to the dealership can be costly and time-consuming. We eliminate that step entirely. Before this module ships, we flash it with the latest official GM software updates, tailored specifically to your vehicle using your VIN. This ensures perfect communication between the engine, transmission, and all related systems, often correcting drivability issues that the original factory software didn’t address.
Case Study: A Tricky Diagnosis
A customer brought in a ’98 GMC Jimmy with the 4.3L V6—the same platform as your Bravada. It had an intermittent no-start and a random stalling issue that other shops couldn’t solve. They had replaced the fuel pump and ignition coil, but the problem persisted. After hooking up my scan tool, I noticed erratic data from the PCM and a history code P0601 (Internal Control Module Memory Check Sum Error). Instead of throwing more parts at it, we installed a correctly programmed OEM module like this one. The erratic behavior vanished, and the truck ran perfectly. It’s a classic example of how a failing PCM can mimic other component failures, making a direct, programmed replacement the smartest fix.
Is Your Vehicle Showing These Signs of a Failing PCM?
A faulty PCM can cause a wide range of confusing symptoms. If you’re experiencing any of the following, this module is likely the solution you need.
- ✔ Check Engine Light is on with codes like P0601, P0602, P0604, or other communication errors.
- ✔ The engine cranks but refuses to start.
- ✔ Unexplained drops in fuel economy.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ The vehicle stalls for no apparent reason, either while driving or at idle.
- ✔ Failure to pass an emissions test.
A Straightforward Guide to Installation
Replacing the 1998 Bravada PCM is a job most DIY enthusiasts can handle with basic tools. Our pre-programming makes it a direct swap.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait about 10 minutes to ensure all systems are powered down.
- Locate the PCM: On the 1998 Bravada, Envoy, and S-10 Blazer/Jimmy, the PCM is typically located in the engine compartment, on the right-hand (passenger) side, often near the firewall or inner fender.
- Disconnect the Connectors: Carefully unclip and remove the electrical harness connectors from the old PCM. Inspect them for any corrosion or damage.
- Remove the Old Module: Unbolt the mounting brackets holding the old PCM in place and remove it from the vehicle.
- Install the New Module: Mount your new, pre-programmed PCM in the same location and securely fasten the bolts.
- Reconnect Everything: Firmly plug the harness connectors into the new PCM. Reconnect the negative battery terminal.
- Perform Security Relearn (If Needed): Some GM vehicles of this era require a simple security relearn procedure. Turn the key to the ‘ON’ position for 10-15 minutes, then turn it off for 10 seconds. Repeat this cycle three times. On the final cycle, the vehicle should start and run normally.
Verified Vehicle Compatibility
This module, identified by service ID 9355699, is a direct fit for a wide range of GM trucks, vans, and SUVs. While this listing is for a 1998 Bravada PCM, it is also compatible with the following vehicles. Always match your part number or the service ID to ensure proper fitment.
- ✔ Oldsmobile: 1998 Bravada (4.3L)
- ✔ GMC: 1998-99 C/K/G 1500/2500/3500 Pickup, Suburban, Yukon, Savana Van; 1998 Safari, Envoy, S15 Sonoma, S15 Jimmy
- ✔ Chevrolet: 1998-99 C/K/G 1500/2500/3500 Pickup, Suburban, Tahoe, Express Van; 1998 Astro, S10 Blazer
- ✔ Cadillac: 1999 Escalade
- ✔ Isuzu: 1998 Hombre (4.3L)
This part is a direct replacement for part numbers: 09355699, 16266645, 9355699, 16250279, 16258815, 09366810, and 9366810.
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) is essential. It allows us to program the PCM with the exact software calibration for your Bravada’s specific engine, transmission, and options. This ensures seamless integration and optimal performance, just like a new module from the factory.
Is this part difficult to install?
No, this is designed for a straightforward installation. Since we handle all the programming, you simply need to physically swap the old module with this one. Basic hand tools are all that’s required. Please see our installation guide above.
This part is used. Is it reliable?
Absolutely. Each module is sourced from a salvaged vehicle and thoroughly inspected and tested to ensure it’s fully functional. An OEM (Original Equipment Manufacturer) used part is often more reliable and durable than a low-quality aftermarket alternative.
Will I need to do anything after installation?
In most cases, it’s plug-and-play. However, some GM vehicles may require a simple ‘Security Relearn Procedure’ to sync the PCM with your vehicle’s anti-theft system. This procedure is simple and does not require special tools.
Does this fit models other than the 1998 Bravada?
Yes, this PCM fits a wide variety of 1998-1999 GM trucks and SUVs that use the service ID 9355699. Please check our detailed fitment list to confirm compatibility with your specific vehicle.