Get Your GM Running Like New Again

A failing Engine Control Module (ECM) can bring your vehicle to a standstill, causing frustrating issues like a persistent check engine light, poor fuel economy, stalling, or even a complete no-start condition. Don’t let a faulty computer keep you off the road. This direct-fit Engine Control Module is the definitive solution, arriving at your door fully programmed with the latest GM software updates, specifically matched to your vehicle’s unique VIN. This eliminates the need for expensive dealership visits and complex programming tools, putting you back in control of your repair.

Common Symptoms & Your Solution

If you’re experiencing any of the following, a failing computer is the likely culprit. This programmed 12636355 ECM is designed to resolve these exact problems:

• Erratic engine performance, including rough idling or hesitation
• Vehicle failing to start or stalling unexpectedly
• Drastic decrease in fuel efficiency
• Check Engine Light (CEL) is illuminated with communication-related Diagnostic Trouble Codes (DTCs) such as P0601, P0606, or other U-codes
• Transmission shifting issues or other electronic module malfunctions

Our professional programming service ensures that when you receive your part, it’s ready to integrate seamlessly with your vehicle’s systems, restoring the precise performance and reliability you expect.

Features & Tangible Benefits

• ✔ VIN-Specific Programming: We flash the module with your vehicle’s exact VIN and the newest GM software, ensuring perfect compatibility and optimal engine performance right out of the box.
• ✔ Hassle-Free Installation: By pre-programming the unit, we eliminate the need for a trip to the dealer, saving you significant time and money on programming fees.
• ✔ Restored Drivability: A correctly functioning ECM is critical for managing fuel injection, ignition timing, and emissions. This module restores that factory-level precision.
• ✔ Broad Compatibility: This module replaces multiple part numbers, including 19300015, 19300014, 12617230, and 12635019, making it a versatile solution for many popular GM vehicles.
• ✔ Peace of Mind Protection: This unit is backed by our one-year replacement warranty.

An Expert’s Note on VIN Programming

In modern vehicles, the ECM is the ‘brain’ of the operation. It doesn’t just run the engine; it constantly communicates with the transmission, ABS, body control module, and even the instrument cluster. Flashing the module with your specific VIN is non-negotiable. It ensures all these systems recognize each other, a process called ‘handshaking.’ Installing a non-programmed module is like introducing a stranger into a close-knit team—it causes communication breakdowns, leading to a no-start condition or a dashboard full of warning lights. Our process guarantees this critical ‘handshake’ happens flawlessly.

This part will fit these makes and models with these options:

• LACROSSE 10-11 Electronic Control Module; (LH engine compartment), 3.6L
• TRAVERSE 10-11 Electronic Control Module; (behind fan shroud)
• CTS 10-11 Electronic Control Module; (RH front engine compartment), 3.6L
• CAMARO 10-11 Electronic Control Module; 3.6L
• OUTLOOK 10 Electronic Control Module; (behind fan shroud)
• ALLURE 10 Electronic Control Module; (LH engine compartment), 3.6L
• ENCLAVE 10-11 Electronic Control Module; (behind fan shroud)
• ACADIA 10-11 Electronic Control Module; (behind fan shroud)
• STS 10-11 Electronic Control Module; (RH engine), (3.6L)

This programmed 12636355 ECM is the most reliable way to get your GM car or SUV back to factory specifications. Simply provide your VIN during checkout, and we’ll handle the rest.

Frequently Asked Questions

Why do you need my VIN?

Your Vehicle Identification Number (VIN) is essential for us to load the correct, vehicle-specific software and calibrations from GM. This ensures the programmed 12636355 ECM communicates perfectly with all other modules in your vehicle for a seamless installation and proper function.

Is any additional programming required after installation?

In most cases, no further programming is needed. However, some vehicles may require a simple ‘relearn’ procedure, such as a security relearn or crankshaft position sensor relearn, which can often be done without special tools. Instructions can typically be found online or in a service manual.

What is the special requirement for Camaro and LaCrosse models?

For the Chevrolet Camaro and Buick LaCrosse, the immobilizer (anti-theft) data is stored in the original ECM. To make your new module ready to install, we require you to send us your old unit. We will extract this security data and transfer it to the replacement module. We will contact you with shipping instructions after your purchase.

How can I be sure my original ECM is the problem?

While the symptoms listed above are strong indicators, professional diagnosis is always recommended. Mechanics can test for power, ground, and data signals at the ECM connector to confirm it is the source of the fault before you order a replacement.

What does the one-year replacement warranty cover?

The warranty covers the module for any defects in workmanship or function for a period of one year from the date of purchase. If the unit fails within this period, we will provide a replacement part.

Product Details

Category: Engine Control Module (ECM)

eBay Item ID: 205697114522

To program your module, we require your full 17-digit VIN. Please enter it in the payment notes and save to ensure we receive it. Orders without a VIN within our 2-business-day handling period may be canceled, as programming cannot proceed without it.

Shipping

• Processing Time:
  Reliably shipped within 2-3 business days.

Warranty

Enjoy peace of mind with a one-year replacement warranty on this part, effective from the date you receive it. Labor costs are not covered.

If the part fails within the warranty period, we’ll replace it with a comparable unit or refund your purchase price, ensuring a hassle-free experience.

Return Address:

Highway71autoparts

9131 Highway 71 NE
Spicer, MN, 56288