Programmed 2003-2006 Tahoe PCM 89017734 | Engine Computer ECU

Restore Your Truck’s Brain & Get Back on the Road

Tired of your Tahoe running rough or not starting at all? Get back on the road with confidence. This engine computer comes fully programmed to your vehicle’s VIN, restoring the reliable performance you depend on. Skip the dealership hassle and get the dependable solution you need. Order today to restore your vehicle!

$134.99

+11.99 USPS Priority Shipping

Out of stock

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Restore Your Truck’s Dependability

Is your Tahoe, Silverado, or Sierra suffering from frustrating issues like a no-start condition, erratic shifting, or a persistent check engine light? A failing Powertrain Control Module (PCM) is often the culprit, leaving you stranded and stressed. This replacement PCM is the definitive solution to get your trusted GM truck or SUV back on the road. It arrives at your door fully programmed to your vehicle’s specific VIN with the latest factory software, eliminating the need for an expensive trip to the dealership for programming.

Common Symptoms & Your Solution

If you’re experiencing any of the following, a faulty PCM is the likely cause. This unit is designed to resolve these problems and restore your vehicle’s original performance and reliability:

  • Check Engine Light (CEL) with communication-related codes (U-codes)
  • Engine stalling, stumbling, or misfiring
  • Harsh or incorrect automatic transmission shifting
  • Complete no-start or intermittent starting issues
  • Poor fuel economy and reduced engine power
  • Apparent failure of multiple sensors at once

Installing this pre-programmed 2003-2006 Tahoe PCM 89017734 is the most direct way to fix the electronic brain of your vehicle and regain the dependable performance you rely on every day.

Features & Tangible Benefits

  • ✔ Plug & Drive Ready: Arrives pre-programmed to your specific VIN. Just provide your VIN after purchase, and we handle the complex flashing process for you.
  • ✔ Saves Time & Money: By programming the unit before shipping, we help you avoid costly dealership programming fees and diagnostic time.
  • ✔ Updated GM Software: We load the newest, most stable calibrations from General Motors, ensuring optimal engine performance, fuel efficiency, and transmission shifting.
  • ✔ Broad Compatibility: This module replaces multiple service numbers, including 89017750, 12582605, 12589463, and 12602802, making it a versatile solution for a wide range of GM trucks and SUVs.
  • ✔ This unit is backed by our one-year replacement warranty.

Expert Mechanic’s Insight

As a technician with over 20 years on the floor, I’ve seen countless vehicle owners waste time and money chasing sensor-related codes when the real issue was the PCM. A failing module can send false signals, making you think you have a bad O2 sensor or MAF sensor. Before you start replacing parts, consider the source. This pre-programmed 2003-2006 Tahoe PCM 89017734 ensures the central command system is solid, providing a reliable foundation for all other engine electronics to function correctly. It’s the right way to fix it once and for all.

Frequently Asked Questions

Do I need to get this PCM programmed by a dealer?

No. The main benefit of our service is that we program the module for you before it ships. Simply provide us with your vehicle’s 17-digit VIN during or after checkout, and it will arrive ready for installation.

What is the security or anti-theft relearn procedure?

On most compatible GM vehicles, a simple security relearn procedure is required after installation. This typically involves turning the key to the ‘ON’ position for 10-12 minutes, then ‘OFF’ for 30 seconds, and repeating this cycle three times. This allows the PCM to sync with your vehicle’s anti-theft system. No special tools are needed.

How do I provide my VIN?

After you complete your purchase, you can send us a message with your 17-digit VIN. We cannot ship your part until we receive this information, as the programming is specific to your exact vehicle.

Will this fix my specific check engine light codes?

This 2003-2006 Tahoe PCM 89017734 is the correct solution for codes related to internal module failure, communication errors, and processor faults. While it can resolve many issues, it’s essential to have a proper diagnosis to confirm the PCM is the root cause of your problem.

Is this a brand new part?

This is a high-quality, inspected, and tested replacement part that has been verified to meet or exceed original equipment specifications. It is programmed with fresh, vehicle-specific software to ensure reliable operation.

MPN

89017734

Year
Conditions & Options

12589463

Genuine OEM

Yes

Condition

Refurbished

PartNumber

590

Model

TAHOE

Make

Year

2004

Brand

CHEVROLET TRUCK

Manufacturer Part Number

, , , , ,

Interchange part number

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