Restore Peak Performance to Your GM Vehicle
Is your 2017 Chevrolet Suburban 1500, or another compatible GM truck or SUV, suffering from frustrating and difficult-to-diagnose engine problems? A faulty Engine Control Module (ECM) is often the culprit behind issues like a persistent check engine light, poor fuel economy, erratic idling, or even a no-start condition. The ECM is the central computer of your engine, responsible for managing everything from fuel injection and ignition timing to emissions controls. When it fails, the entire system’s performance and reliability are compromised. This replacement Engine Control Module, part number 12674472, is the definitive solution to restore your vehicle’s factory operation.
From the Diagnostic Bay
We had a 2017 Sierra 1500 in the shop that was driving the owner crazy. It had a random stalling issue and a check engine light with a slew of communication error codes (U-codes). The owner had already replaced the throttle body and a couple of sensors with no luck. After hooking up our diagnostic tools, we noticed the ECM would intermittently drop communication. This is a classic sign of internal module failure. Instead of a complex wiring issue, the problem was the main computer itself. We installed a VIN-programmed ECM, performed the security relearn, and the truck ran perfectly. It’s a reminder that sometimes the ‘brain’ is the source of the problem, not the sensors it’s reading.
Common Symptoms of a Failing ECM
- ✔ Persistent Check Engine Light (CEL) with various fault codes.
- ✔ Vehicle refuses to start or has intermittent starting problems.
- ✔ Rough or unstable engine idle.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Engine stalling, hesitation, or misfiring while driving.
- ✔ Transmission shifting issues or harsh shifts.
- ✔ Failure to communicate with diagnostic scan tools.
Your Solution: A VIN-Programmed 2017 Suburban 1500 ECM
Don’t settle for a generic, unprogrammed module that requires an expensive trip to the dealership. We simplify the repair process. When you order this 2017 Suburban 1500 ECM, we flash it with the latest, most up-to-date software directly from GM. By providing your vehicle’s VIN (Vehicle Identification Number) during checkout, you ensure the module arrives loaded with the precise calibration for your specific engine, transmission, and factory options. This tailored programming is critical for proper function and eliminates guesswork.
Installation and Required Procedures
While this module is programmed to your VIN, it is not a simple plug-and-play installation. Modern vehicles have sophisticated anti-theft systems. Upon installation, a Vehicle Theft Deterrent Relearn procedure MUST be performed. This synchronizes the new ECM with your vehicle’s security system, allowing the engine to start. This procedure requires a professional scan tool with access to GM’s programming software (such as Tis2web or Techline Connect). This is a standard step for this type of repair and is the responsibility of the installer. Additional procedures, such as a crankshaft position sensor variation relearn or injector flow rate programming, may also be necessary depending on your specific vehicle and the original fault.
Guaranteed Fitment
This module is a direct replacement for part number 12674472 and is compatible with a wide range of GM vehicles. Please verify your part number or consult the fitment list below. This part fits the following vehicles:
- 2017 Cadillac Escalade & Escalade ESV
- 2017 Cadillac XTS (3.6L Twin Turbo)
- 2017 Cadillac CTS (6.2L Supercharged & 3.6L Twin Turbo)
- 2017 Cadillac ATS (3.6L Twin Turbo)
- 2017 Chevrolet Corvette
- 2017 Chevrolet Tahoe
- 2017 Chevrolet Suburban 1500
- 2016-2018 Chevrolet Silverado 1500 (check ID)
- 2016-2018 GMC Sierra 1500 / Sierra Denali 1500 (check ID)
- 2017 GMC Yukon & Yukon XL 1500
Frequently Asked Questions
Why is my VIN required for this part?
Your VIN allows us to load the exact GM factory software and calibrations for your vehicle’s specific engine, transmission, and options. This ensures the ECM works correctly right out of the box, once the security relearn is completed.
What is a ‘theft relearn’ and is it difficult?
It’s a security procedure that syncs the new ECM to your vehicle’s ignition keys and security module. It is a mandatory step for the vehicle to start. It is not difficult for a qualified technician with the proper GM-compatible diagnostic tools, like Tis2web or Techline Connect.
Can I install this myself in my driveway?
While the physical installation is straightforward, the required post-installation electronic procedures (like the theft relearn) require professional-grade tools. We highly recommend installation by a certified automotive technician who is equipped for modern vehicle programming.
Will this ECM fix my check engine light?
If a faulty ECM has been properly diagnosed as the cause of your check engine light and fault codes, then yes, this part will resolve the issue. It’s crucial to ensure the ECM is the actual problem and not a faulty sensor or wiring issue.
Does this part fit other part numbers?
Yes, this module is a direct replacement for several part numbers, including 12692068, 12704476, 12686382, 12674052, 12674472, and 12678815.