Programmed 9355699 PCM | ECM for 98-99 GM Trucks, SUVs & Vans

Get Back on the Road with Confidence

End the frustration of a faulty computer. This reliable, pre-programmed 9355699 PCM is the simple solution to get your trusted GM vehicle running smoothly again. It’s programmed to your VIN and ready to install right out of the box. Order today and restore your peace of mind!

$115.00

+11.99 USPS Priority Shipping

Availability: Only 1 left in stock



SKU: 590-06234A-139 Categories: ,
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Get Your GM Truck or Van Running Reliably Again

Is your trusty GM vehicle plagued by a persistent check engine light, erratic shifting, stalling, or a frustrating no-start condition? These are classic signs of a failing Powertrain Control Module (PCM), the computer that acts as the brain for your engine and transmission. Don’t let a faulty computer keep you off the road. This fully programmed PCM is the straightforward, reliable solution to restore your vehicle’s performance and your peace of mind.

Common Symptoms of a Failing PCM & Your Direct Solution

A failing engine computer can cause a wide range of confusing issues that can be difficult to diagnose. If you’re experiencing any of the following, a faulty module is the likely culprit:

  • Check Engine Light: Especially with communication-related Diagnostic Trouble Codes (DTCs) like P0601, P0605, or P0606.
  • Engine Performance Problems: Stalling, rough idling, hesitation during acceleration, or a noticeable drop in fuel economy.
  • No-Start Condition: The engine cranks but refuses to start, often due to a lack of fuel injector or ignition coil signal from the PCM.
  • Erratic Transmission Shifting: Harsh shifts, delayed engagement, or getting stuck in one gear.

This thoroughly tested and VIN-programmed 9355699 PCM is the definitive answer to these problems, restoring the critical link between your vehicle’s essential systems.

Features & Tangible Benefits

  • ✔ VIN-Programmed for Your Vehicle: No expensive trips to the dealer for programming. This module arrives at your door pre-flashed with the latest GM software updates for your specific vehicle. It’s ready for a straightforward installation.
  • ✔ Tested for Reliability: Each module undergoes rigorous testing to ensure it meets or exceeds original factory standards, giving you confidence in its performance and longevity.
  • ✔ Direct-Fit Solution: Guaranteed to fit and function correctly for all models listed in the compatibility chart, restoring proper communication between your engine, transmission, and other critical systems.
  • ✔ Cost-Effective Repair: Avoid the high cost and hassle of sourcing a new computer. This is an affordable and dependable way to get your truck, van, or SUV back in top running condition.
  • ✔ Peace of Mind Included: This unit is backed by our one-year replacement warranty, so you can purchase with confidence.

A Word From The Workbench: As a technician with over 20 years of experience, I’ve seen countless late-90s GM trucks with these exact frustrating issues. The ‘Black Box’ computer, like this 9355699 PCM, is the heart of the entire powertrain. When its internal processor fails, it can mimic a dozen other problems, sending you on a wild goose chase for bad sensors or wiring. Replacing it with a properly programmed unit isn’t just a repair; it’s a restoration of the vehicle’s core reliability, ensuring your engine and transmission work in perfect harmony just as the engineers intended.

Frequently Asked Questions

Do I need to do any programming myself?

No. We handle all the programming for you before shipment. Simply provide us with your vehicle’s 17-digit VIN after you place your order, and we will flash the module with the correct, updated software for your specific vehicle.

Is this a difficult part to install?

For most DIYers with basic tools, this is a straightforward installation. The module is typically located in the engine bay. After swapping the part, you will need to perform a security relearn procedure (often called a CASE relearn) so the module can communicate with your vehicle’s anti-theft system and crankshaft position sensor. This procedure is simple and can be done without special tools.

How do I send you my VIN?

After you complete your purchase, you will receive instructions on how to reply with your VIN. You can typically find your VIN on your vehicle’s dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your insurance and registration documents.

What’s the difference between a PCM and an ECM?

The terms are often used interchangeably. ECM stands for Engine Control Module, while PCM stands for Powertrain Control Module. A PCM controls both the engine and the transmission, which is the case for this 9355699 PCM and the vehicles it fits.

Will this fix my check engine light?

This module is the correct solution for check engine lights caused by an internal computer failure (like code P0601). However, a check engine light can be triggered by many different things. We always recommend having the codes read by a scanner to ensure you are replacing the correct part for your vehicle’s specific issue.

How can I be sure this fits my vehicle?

Please check the detailed fitment list on this page. This part is a direct replacement for service number 09355699 and several other compatible part numbers. As long as your vehicle and original part number are listed, this module will fit and function correctly.

MPN

9355699

Year

Conditions & Options

Programmed to your VIN GM: 09355699

Genuine OEM

Yes

Condition

Refurbished

Model

ENVOY

Make

Year

1998

Brand

CHEVROLET TRUCK

Manufacturer Part Number

, , , , , ,

Interchange part number

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