Restore Your Buick’s Brain and Drivability
If your 2017 Buick Enclave is suffering from a persistent check engine light, erratic engine behavior, or a frustrating no-start condition, the problem often lies with a failing Engine Control Module (ECM). As a technician with over two decades of experience, I’ve seen firsthand how a faulty ECM can cripple a perfectly good vehicle. It’s the central computer for your engine, and when it malfunctions, it can cause a cascade of issues from poor fuel economy to complete shutdown. This isn’t just an inconvenience; it’s a critical component for your vehicle’s performance and safety.
This is your direct, reliable solution. We offer a replacement ECM that is professionally programmed to your vehicle’s specific Vehicle Identification Number (VIN). This means we load the latest, most stable software updates directly from GM before we ship it to you. The result is a module that is ready for installation right out of the box, restoring the precise engine management your Enclave had when it left the factory.
Case Study: A Tricky Traverse Diagnosis
A few months back, a 2017 Chevy Traverse (which shares its platform and ECM with the Enclave) was towed into my bay. The customer was frustrated; they had already replaced spark plugs and an ignition coil trying to chase down a random misfire and stalling problem. The scan tool showed a few communication codes (U0100) along with an internal processor fault (P0606). These intermittent communication issues are a classic red flag for me. We confirmed power and ground to the ECM were solid, pointing directly to an internal failure of the module itself. Instead of a costly trip to the dealer for a new unit and programming, we sourced a VIN-programmed module like this one. The installation took less than 30 minutes, and the Traverse has been running flawlessly ever since. It saved the customer hundreds of dollars and significant downtime.
Is Your Enclave Showing These Signs of ECM Failure?
A failing engine computer can manifest in various ways. If you’re experiencing any of the following, a faulty ECM is a likely culprit. Look out for these common indicators:
- ✔ Unexplained Check Engine Light (CEL) illumination
- ✔ Stalling, rough idling, or engine hesitation
- ✔ Noticeable decrease in fuel efficiency
- ✔ Vehicle enters a no-start or difficult-to-start condition
- ✔ Transmission shifting problems or harsh shifts
- ✔ Diagnostic Trouble Codes (DTCs) such as P0601, P0602, P0606, or U0100
A Straightforward Guide to Installation
Replacing the 2017 Enclave ECM is a manageable job for a DIY enthusiast. The key is our pre-programming service, which eliminates the need for expensive scan tools. Follow these general steps to get your vehicle back in top shape.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait 10-15 minutes for the system capacitors to discharge.
- Locate the Module: On the 2017 Enclave, the ECM is typically located behind the engine’s fan shroud. It’s a silver metal box with several large electrical connectors.
- Disconnect and Remove: Carefully unplug the wiring harnesses. Most have a locking tab or lever that needs to be released. Once disconnected, unbolt the old ECM from its mounting bracket.
- Install the New ECM: Mount your new, pre-programmed module in the exact same position. Securely reconnect all wiring harnesses, ensuring they click into place.
- Reconnect and Start: Reattach the negative battery terminal. The vehicle may need to go through a brief security relearn procedure, which can often be completed by turning the key to the ‘ON’ position for 10-15 minutes before starting the engine. Consult your owner’s manual for specific instructions.
Verified Compatibility for Your GM Vehicle
This module is a direct replacement for part numbers 12667002, 12666070, and 12667189. It is guaranteed to fit and function correctly in the following vehicles, provided the options match:
- 2017 Buick Enclave: Electronic Control Module; (behind fan shroud)
- 2017 Buick Regal: Electronic Control Module; (LH engine compartment)
- 2017 Buick Verano: Electronic Control Module
- 2017 Cadillac Caprice: Electronic Control Module; 3.6L
- 2017-2019 Cadillac XTS: Electronic Control Module; (3.6L), VIN 3 (8th digit, opt LFX)
- 2017 Chevrolet Traverse: Electronic Control Module; (behind fan shroud)
- 2017-2019 Chevrolet Impala: Electronic Control Module
- 2017 Chevrolet Equinox: Electronic Control Module; (LH engine compartment)
- 2017 GMC Acadia: Electronic Control Module; VIN J (11th digit, Limited), (behind fan shroud)
- 2017 GMC Terrain: Electronic Control Module; (LH engine compartment)
By purchasing this 2017 Enclave ECM, you’re not just buying a part; you’re getting a fully prepared, plug-and-play solution that brings expert-level service directly to your garage.
Frequently Asked Questions
Do I need to get this programmed by a dealer?
No. This ECM comes fully programmed to your vehicle’s VIN before shipping. It is ready for installation upon arrival, saving you a trip to the dealership and additional programming fees.
What is a VIN and why do you need it?
The VIN (Vehicle Identification Number) is a unique 17-digit code for your specific vehicle. We use it to load the correct GM software, calibrations, and security information, ensuring the module communicates perfectly with your car’s other systems.
My original part number isn’t 12667002, but it’s on the list. Will this work?
Yes. This module is a direct replacement for all part numbers listed (12667002, 12666070, 12667189). Manufacturers often supersede part numbers, but the hardware and function are identical.
Will this fix my check engine light?
If the check engine light is caused by a faulty ECM (e.g., codes P0601, P0606), then yes, this part will resolve the issue. However, you should always ensure your vehicle has been properly diagnosed, as other faulty sensors or components can also trigger a check engine light.
How soon will you ship after I provide my VIN?
After you place your order, please send us your VIN. The programming process typically takes 1-2 business days, after which your module will be shipped out promptly.