VIN Programmed 1998-1999 Yukon PCM 09366810 | Powertrain Control Module

Restore Your Truck’s Performance

Experiencing stalling, a check engine light, or erratic shifting in your GM truck? This VIN-programmed 1998-1999 Yukon PCM is the direct-fit solution. It arrives with the latest GM software, ready to install with no dealer visit required. Fix your truck’s electronic issues for good. Get your truck running right again. Order today!

$115.00

+11.99 USPS Priority Shipping

Availability: In stock



SKU: 590-06234B-53 Categories: ,
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Restore Peak Performance to Your GM Truck or SUV

If your 1998-1999 GMC Yukon, Tahoe, Suburban, or other compatible GM vehicle is suffering from frustrating issues like a persistent check engine light, erratic shifting, stalling, or a no-start condition, the culprit is often a failing Powertrain Control Module (PCM). As a technician with over two decades of experience, I’ve seen firsthand how a faulty PCM can create a cascade of problems that are impossible to ignore. This isn’t just a part; it’s the central computer of your vehicle, and when it fails, your truck’s reliability is compromised. This replacement 1998-1999 Yukon PCM is the definitive solution to restore your vehicle’s engine and transmission management to factory specifications.

The biggest hurdle for many DIYers and even professional shops is the programming. A new module from the dealer requires expensive, specialized tools to flash it. We eliminate that step entirely. Before this module ships, we program it with the latest GM-certified software using the VIN you provide. This ensures it communicates perfectly with your engine, transmission, and security system right out of the box, making the installation process as simple as possible.

Case Study: A Tricky Diagnosis

A customer brought in his ’99 GMC Sierra 1500 with the 5.7L. The complaint was intermittent stalling at stoplights and a transmission that would sometimes refuse to shift out of first gear. He’d already replaced the throttle position sensor and the vehicle speed sensor with no luck. The scanner wasn’t showing consistent codes, just a random P0606 (PCM Processor Fault) that would appear and disappear. After verifying the wiring harness had good continuity and grounds were solid, we focused on the PCM. In my shop, I’ve seen hundreds of these older GM PCMs fail due to heat cycles and aging internal capacitors. We swapped in a VIN-programmed module, performed the security relearn, and the truck ran perfectly. The intermittent electrical ghosts were gone for good. This is a classic failure mode for these units.

Is Your GM Truck or SUV Showing These Signs?

  • ✔ Persistent Check Engine Light (CEL)
  • ✔ Diagnostic Trouble Codes (DTCs) like P0601, P0605, or P0606 pointing to internal module failure.
  • ✔ Vehicle refuses to start or stalls unexpectedly.
  • ✔ Harsh, erratic, or delayed transmission shifting.
  • ✔ Noticeable decrease in fuel economy.
  • ✔ Failure to pass state emissions testing.
  • ✔ Inconsistent or non-functional gauges.

A Straightforward Guide to Installation

Replacing your 1998-1999 Yukon PCM is a job most DIY enthusiasts can handle with basic tools. Our pre-programming service saves you a trip to the dealership.

  1. Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post.
  2. Locate the PCM: On most of these trucks and SUVs, the PCM is located in the engine compartment, typically on the driver’s side (LH) fender well or near the battery.
  3. Disconnect Harnesses: Carefully unclip and disconnect the electrical wiring harnesses from the old module. These connectors have locking tabs that need to be released before pulling. Avoid forcing them.
  4. Remove Old Module: Unbolt the old PCM from its mounting bracket. Keep the hardware as you will reuse it.
  5. Install New Module: Mount your new, pre-programmed PCM onto the bracket and secure it with the original hardware.
  6. Reconnect Everything: Firmly plug the wiring harnesses back into the new module until they click into place. Reconnect the negative battery terminal.
  7. Perform Security Relearn (If Necessary): Your vehicle may enter a security lockout mode. To resolve this, turn the key to the ‘ON’ position (without starting) for 10-15 minutes, then turn it ‘OFF’ for 10 seconds. Repeat this cycle 3 times. On the fourth try, the vehicle should start.

Verified Vehicle Compatibility

This module is a direct replacement for service numbers 09366810, 16250279, and 09355699. It is guaranteed to fit the following vehicles, but always confirm your original part number matches.

Fits various 1998-1999 models including: GMC Yukon, Chevrolet Tahoe, Suburban, Escalade, C/K 1500/2500/3500 Pickups, Express/Savana Vans, Astro/Safari Vans, S10/Sonoma, Blazer/Jimmy, Oldsmobile Bravada, and Isuzu Hombre. Please refer to the detailed fitment list or contact us with your VIN to confirm compatibility.

Frequently Asked Questions

Do I really need to provide my VIN?

Yes, this is absolutely critical. We use your Vehicle Identification Number (VIN) to load the exact, correct software from GM for your truck’s specific engine, transmission, and options. This ensures flawless operation and is not an optional step.

Is any additional programming needed after installation?

No. This PCM arrives fully programmed and ready for installation. The only additional procedure you may need to perform is the security relearn (also known as the VATS relearn), which is a simple 30-minute key-on/key-off process that requires no special tools.

What’s the difference between a PCM, ECM, and ECU?

The terms are often used interchangeably. PCM (Powertrain Control Module) is most accurate for these vehicles as it controls both the engine and transmission. ECM (Engine Control Module) and ECU (Electronic Control Unit) are more general terms. For this application, they all refer to the same part.

Will this fix my transmission shifting problems?

In many cases, yes. The PCM directly controls transmission shift points and line pressure. If your hard shifting or slipping is caused by a faulty module, this part is the correct fix. However, it will not fix internal mechanical failures within the transmission itself.

How do I find my original part number?

The part number is printed on a sticker on the case of your current PCM. You will need to locate and likely unbolt the module to see the sticker clearly. Confirming this number is the best way to ensure you are ordering the correct part.

Condition

Refurbished

MPN

09366810

Genuine OEM

Yes

Interchange part number

PartNumber

590

Model

YUKON

Year

1998

Brand

GM

Manufacturer Part Number

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