Is Your Truck Running Rough? Get Back in Command.
If your dependable GM truck or SUV is suddenly plagued by a persistent check engine light, erratic shifting, stalling, or a frustrating no-start condition, the problem often lies with a failing Powertrain Control Module (PCM). This isn’t just an inconvenience; it’s a critical failure that affects your vehicle’s performance, fuel economy, and reliability. This replacement PCM is the definitive, hassle-free solution to restore your vehicle’s brain and get you back on the road with confidence. We take the guesswork out of the repair by pre-programming this Programmed PCM 89017734 to your vehicle’s specific VIN before it ever leaves our facility.
Common Symptoms of a Failing PCM & Your Direct-Fit Solution
A faulty PCM can manifest in numerous ways, often mimicking other sensor or component failures. If you’re experiencing any of the following, a failing engine computer is a likely culprit:
- Check Engine Light (CEL) Illumination: Often with communication error codes (U-codes) or multiple, seemingly unrelated sensor codes.
- Engine Performance Issues: Stalling, hesitation, rough idling, misfires, or a noticeable loss of power.
- Poor Fuel Economy: The engine is no longer receiving the correct parameters for efficient operation.
- Harsh or Failed Shifting: The PCM plays a vital role in controlling transmission shift points and pressures.
- No-Start Condition: The module may fail to activate the fuel pump or ignition system.
This unit is your direct-fit, plug-and-play solution. By providing us with your VIN, we ensure the module arrives with the latest GM software updates, ready for installation and the necessary security relearn procedure.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: No need for an expensive trip to the dealership for programming. This module is flashed with your truck’s specific calibration files for a perfect match.
- ✔ Loaded with Latest GM Updates: We install the most current factory software, which often corrects earlier drivability issues and improves overall performance and efficiency.
- ✔ Direct OEM-Spec Fitment: Engineered to be a direct replacement for service numbers 89017750, 12582605, 12589463, 12602802, 89017734, and 28042802, ensuring a perfect installation.
- ✔ Restores Peak Performance: A correctly functioning PCM is essential for proper engine timing, fuel delivery, and transmission control, bringing back the power and reliability you depend on.
- ✔ Peace of Mind Included: This unit is backed by our one-year replacement warranty.
An Expert’s Note on Programming: In my 20+ years diagnosing and repairing vehicles, I’ve seen the chaos caused by installing a generic, non-programmed module. It’s a recipe for disaster. The PCM is the central nervous system of your truck. Programming it to your specific VIN isn’t just a suggestion; it’s the only way to ensure all onboard systems—from the anti-lock brakes to the theft deterrent system—communicate correctly. We handle this critical step for you, turning a complex electronic repair into a straightforward component swap.
Don’t let a faulty computer keep your hard-working truck sidelined. This Programmed PCM 89017734 is the most reliable way to solve complex electronic issues and restore the factory performance your vehicle was built for. By handling the complex programming, we save you time, money, and the headache of a dealership visit, making this the smart choice for both DIYers and professional technicians. Get your vehicle back to full operational health with this ready-to-install Programmed PCM 89017734.
Frequently Asked Questions
Do I need to do any programming myself?
No. We program the module to the VIN you provide before shipping. The only step you may need to perform after installation is a security relearn procedure (also known as a VATS relearn), which can typically be done without special tools and takes about 30 minutes. Instructions are readily available online for your specific model.
Where do I provide my vehicle’s VIN?
You can add your 17-digit VIN to the notes section during checkout. If you forget, don’t worry—we will contact you via email to request it before we program and ship your part.
Will this fit my truck if my original part number is different?
Yes, this module is a direct replacement for multiple GM service numbers, including 89017750, 12582605, 12589463, 12602802, and others listed. As long as your vehicle is on the compatibility list, this unit will function correctly.
Is a Crankshaft Variation (CASE) relearn required?
For optimal performance and to prevent a P0315 trouble code, a CASE relearn is recommended after installation. This procedure requires a professional-grade scan tool and synchronizes the PCM with the crankshaft position sensor. Most local repair shops can perform this service for you.
How can I be sure the PCM is the actual problem?
While this part resolves the common symptoms listed, it’s always best to have a proper diagnosis performed. Key indicators of a bad PCM include communication-related trouble codes (U-codes), multiple unrelated sensor codes appearing at once, or having ruled out all other potential causes like wiring, grounds, and individual sensors.