Programmed 1998 S10 PCM | Part #16250279 | VIN Flashed & Ready to Install

Restore Your Truck’s Performance

Get your GM vehicle running smoothly again with this VIN-programmed Powertrain Control Module. Flashed with the latest GM software, it’s a direct-fit solution for stalling, rough shifting, and check engine lights. Provide your VIN at checkout and we’ll ship it ready to install!

$115.00

+11.99 USPS Priority Shipping

Availability: In stock



SKU: 590-06234B-69 Categories: ,
Guaranteed Safe Checkout

Restore Your Truck’s Heartbeat and Drive with Confidence

Is your late 90s GM truck or van suffering from baffling electrical gremlins? A flickering check engine light, erratic shifting, a rough idle, or even a no-start condition can often be traced back to a failing Powertrain Control Module. It’s the brain of your vehicle, and when it’s not working correctly, the frustration can be overwhelming. This isn’t just an inconvenience; it’s a matter of reliability and peace of mind. Get back on the road with a dependable solution. This Powertrain Control Module, compatible with part number 16250279, is professionally programmed to your vehicle’s specific VIN, ensuring a seamless and effective repair.

Is Your Truck’s Brain on the Fritz? Common Symptoms of a Failing PCM

A failing computer can manifest in numerous ways, often mimicking other component failures. If you’re experiencing any of the following, it might be time to inspect your PCM:

  • ✔ An illuminated Check Engine Light (CEL) with communication-related or internal processor error codes (e.g., P0601, P0602, P0605).
  • ✔ Unexplained drops in fuel economy.
  • ✔ The engine cranks but refuses to start.
  • ✔ Harsh or unpredictable automatic transmission shifting.
  • ✔ Stalling, surging, or a noticeably rough idle.
  • ✔ Failure to pass state emissions testing.

A Mechanic’s Tale: The Ghost in the Machine

“I once had a ’99 Tahoe in the shop that was driving its owner crazy. It would stall randomly at red lights, but only when warm. We checked everything—fuel pressure, ignition components, sensors—you name it. No codes were stored, and everything tested fine. On a hunch, I tapped the PCM with a screwdriver handle while it was running, and the engine stumbled. The problem was a hairline crack in the circuit board, invisible to the naked eye, that would separate when the module heated up. Replacing the PCM was the only fix. It’s a reminder that sometimes the most elusive problems lead back to the vehicle’s central computer.”

Guided Installation for a Successful Repair

Installing your new 1998 S10 PCM is a straightforward process that you can perform with basic hand tools. We’ve already handled the complex programming for you. Just follow these steps to get your vehicle running smoothly again.

  1. Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work. This prevents accidental shorts and protects the vehicle’s sensitive electronics.
  2. Locate the Old Module: On most of these GM trucks and vans, the PCM is located in the engine bay, often on the driver’s side fender or near the battery.
  3. Disconnect the Harnesses: Carefully unplug the electrical connectors from the old PCM. These connectors have locking tabs that may need to be gently pried or squeezed to release. Inspect the connectors for any corrosion or damage.
  4. Remove the Old Unit: Unbolt the old PCM from its mounting bracket. Keep the hardware, as you’ll need it to install the new module.
  5. Install the New PCM: Mount your new, pre-programmed PCM onto the bracket and securely fasten it. Reconnect the electrical harnesses, ensuring they click firmly into place.
  6. Reconnect the Battery: Re-attach the negative battery terminal.
  7. Perform Security Relearn (If Necessary): Your vehicle may require a simple security relearn procedure to recognize the new PCM. This typically involves cycling the key in the ignition. Additionally, a Crankshaft Variation (CASE) relearn with a capable scan tool may be needed to clear certain codes and ensure optimal engine timing.

Guaranteed Compatibility for Your Vehicle

This module is a direct replacement for part numbers 16250279, 09366810, and 09355699. It is meticulously programmed to work with the following makes and models. Please provide your VIN upon purchase to ensure a perfect match.

  • Cadillac Escalade: 1999
  • Chevrolet Trucks: 1500, 2500, 3500 Pickup (1998-1999)
  • Chevrolet Vans: Astro, Express 1500, 2500, 3500 (1998-1999)
  • Chevrolet SUVs: Blazer S10, Suburban 1500/2500, Tahoe (1998-1999)
  • GMC Trucks: 1500, 2500, 3500 Pickup (1998-1999), S15/Sonoma (1998)
  • GMC Vans: Safari, Savana 1500, 2500, 3500 (1998-1999)
  • GMC SUVs: Jimmy S15, Envoy, Yukon (1998-1999)
  • Oldsmobile Bravada: 1998
  • Isuzu Hombre: 1998

Note: Please verify your original part number and check the fitment notes for specific engine and option compatibility. A properly programmed 1998 S10 PCM is critical for vehicle function.

Frequently Asked Questions

Do I need to do any programming myself?

No. We handle all the programming for you before shipment. We flash the module with the latest GM-certified software using the VIN you provide, so it arrives ready for installation.

What is a VIN and why do you need it?

The Vehicle Identification Number (VIN) is a unique 17-digit code for your specific vehicle. It contains information about the make, model, engine, transmission, and factory-installed options. We use the VIN to load the exact software and calibrations your vehicle needs to run correctly.

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

In many cases, yes. If the PCM has failed internally, it can stop communicating with diagnostic tools and other modules in the vehicle. A replacement PCM often restores this communication link.

What is a CASE relearn and will I need to do one?

A CASE (Crankshaft Angle Sensor Error) relearn is a procedure that synchronizes the new PCM with the engine’s crankshaft position sensor. After installation, you may have a code like P1336. While the vehicle will run, performing a CASE relearn with a compatible scan tool is recommended to clear the code and achieve the most accurate ignition timing and misfire detection.

Is this a simple plug-and-play installation?

Essentially, yes. Because we program it beforehand, the installation is a direct swap. However, as mentioned, some vehicles may require a simple key-cycle security relearn procedure, which can be done without any special tools.

Condition

Refurbished

MPN

16250279

Year

Genuine OEM

Yes

Interchange part number

PartNumber

590

Model

s10-s15-sonoma

Year

1998

Brand

GM

Manufacturer Part Number

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