1998 Oldsmobile Bravada PCM 09366810 | Programmed ECM

Restore Your Bravada’s Performance!

Get your 1998 Oldsmobile Bravada running smoothly again with our VIN-programmed Powertrain Control Module. This direct-fit replacement arrives ready to install, flashed with the latest GM software to solve check engine lights, poor fuel economy, and erratic shifting. Provide your VIN at checkout for a plug-and-play solution.

$115.00

+11.99 USPS Priority Shipping

Availability: In stock



SKU: 590-06234B-38 Categories: ,
Guaranteed Safe Checkout

Is Your 1998 Bravada Running Rough? The PCM Might Be the Culprit.

If your 1998 Oldsmobile Bravada is suffering from a persistent check engine light, erratic engine behavior, poor fuel economy, or harsh transmission shifting, a failing Powertrain Control Module (PCM) is a very likely cause. As the central computer of your vehicle, the PCM is responsible for managing everything from fuel injection and spark timing to transmission shift points and emissions controls. When it begins to fail, it can create a cascade of frustrating and difficult-to-diagnose problems. This isn’t just an inconvenience; it affects your vehicle’s reliability, performance, and safety.

This replacement Powertrain Control Module, part number 09366810, is the definitive solution to restore your vehicle’s factory performance. We take the guesswork out of the repair process. Unlike a generic module from a parts store or a salvage yard unit with an unknown history, this PCM is professionally programmed specifically for your vehicle using your unique Vehicle Identification Number (VIN). We flash it with the latest, most stable software updates directly from GM, ensuring all factory protocols and performance parameters are perfectly matched to your Bravada’s original specifications. This means no complicated trips to the dealer for expensive programming—it’s a true plug-and-play solution designed to get you back on the road quickly and confidently.

From the Diagnostic Bay

I remember a customer with a ’98 GMC Jimmy, which shares the same platform and electronics as the Bravada. He was at his wit’s end. The truck would randomly stall at stoplights, the transmission would slam into gear, and he had a check engine light for a random misfire that would come and go. He had already replaced the spark plugs, wires, cap, rotor, and even the fuel pump. Nothing worked. After hooking up our professional scan tool, we noticed the live data stream from the PCM was erratic. The sensor readings were jumping all over the place, even when the engine was at a steady idle. This pointed directly to a failing processor in the module. We installed a VIN-programmed PCM, just like this one, and the difference was immediate. The engine idled smoothly, the transmission shifted like new, and all the phantom codes disappeared. It’s a classic case of the vehicle’s ‘brain’ failing and causing symptoms that mimic other component failures.

Common Symptoms of a Failing 1998 Bravada PCM

  • ✔ Persistent Check Engine Light (CEL) that won’t clear or returns immediately.
  • ✔ Engine stumbling, misfiring, or running rough.
  • ✔ Harsh or erratic automatic transmission shifting.
  • ✔ A complete no-start or intermittent starting condition.
  • ✔ Unexplained drop in fuel economy.
  • ✔ Failure to pass state emissions testing.
  • ✔ Communication errors with diagnostic scan tools.
  • ✔ Other warning lights on the dashboard, like ABS or security lights, may illuminate.

A Reliable, Programmed Solution

Don’t settle for a used module that may have the same issues as your current one or require costly dealer programming. Our process is simple and effective. Once you place your order, you provide us with your vehicle’s VIN. Our technicians then use that information to load the correct GM-certified software onto this module. This crucial step ensures that the PCM correctly communicates with your engine, transmission, anti-lock brake system, and security system (Passlock/VATS). When the module arrives, all you need to do is disconnect the battery, swap the old module with the new one, and reconnect the battery. In most cases, a security relearn procedure may be required, which is a simple process you can do yourself in about 30 minutes without any special tools.

This module is a direct replacement for multiple part numbers, including 16250279, 09366810, and 09355699. It fits a wide range of GM trucks, vans, and SUVs from the late 1990s, including the Chevrolet S10, GMC Sonoma, Chevrolet Blazer, GMC Jimmy, and many full-size trucks and vans. Please verify the part number and consult the detailed fitment list to ensure compatibility with your specific vehicle.

Frequently Asked Questions

Do I need to get this PCM programmed?

No. We handle all the programming for you before we ship the part. You simply need to provide your vehicle’s VIN during or after checkout. It will arrive ready to install.

Where is the PCM located on my 1998 Oldsmobile Bravada?

On the 1998 Bravada, as well as similar models like the Blazer and Jimmy, the Powertrain Control Module is typically located in the engine compartment on the passenger side, near the firewall or inner fender.

What is the difference between a PCM, ECM, and ECU?

ECM stands for Engine Control Module, and ECU stands for Engine Control Unit. In older vehicles, these controlled only engine functions. PCM, or Powertrain Control Module, is a more modern term for a module that controls both the engine and the transmission. For this vehicle, the terms are often used interchangeably.

Will this fix my ‘No Communication’ issue with a scan tool?

In many cases, yes. A complete failure of the PCM can prevent it from communicating with diagnostic tools. If the module itself is the source of the communication failure, this replacement part will resolve the issue.

What is the security relearn procedure?

After installation, you may need to perform a simple security relearn. This 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 new PCM to synchronize with your vehicle’s anti-theft system. We include instructions for this simple procedure.

What happens after I place my order?

After you purchase the PCM, you will need to send us your vehicle’s 17-digit VIN. We cannot ship the module until we have this information. Once we receive your VIN, we will program the module within 1-2 business days and then ship it to you.

Condition

Refurbished

MPN

09366810

Year

Genuine OEM

Yes

Interchange part number

PartNumber

590

Model

BRAVADA

Year

1998

Brand

GM

Manufacturer Part Number

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