Is Your Cadillac XTS Running Rough or Not Starting?
If you’re dealing with a persistent check engine light, unexplained stalling, poor fuel economy, or a no-start condition in your 2017 Cadillac XTS, the Engine Control Module (ECM) is a highly likely culprit. As the central computer for your engine, a failing ECM can cause a cascade of frustrating and difficult-to-diagnose problems. Stop throwing money at sensors and other parts and get to the heart of the issue with a reliable, VIN-programmed replacement ECM.
The Direct Solution: Programmed and Ready for Your Vehicle
This isn’t just a generic part off a shelf. We take the guesswork out of the repair by pre-programming this genuine GM engine computer specifically for your vehicle using your VIN. This ensures that all the factory software and calibrations are 100% correct for your XTS’s specific options and emissions equipment. We load the latest software updates from GM, which can often resolve issues that were present even in the original factory programming.
“A customer’s 2017 Cadillac CTS with the twin-turbo 3.6L, very similar to your XTS’s LF3 engine, came in last week. They had already replaced two coil packs and the throttle body chasing a persistent misfire and erratic idle. The diagnostic codes were all over the place. The real culprit? A failing ECM driver circuit for cylinder 3. A new, correctly programmed module like this one had them running smoothly in under an hour. It’s a common scenario I’ve seen hundreds of times โ diagnosing the ECM first can save a lot of time and money.”
Symptoms of a Failing 2017 XTS Engine Module:
If you’re experiencing any of the following, a faulty ECM is a strong possibility:
- โ Check Engine Light (CEL) is on with various communication or performance codes.
- โ Engine cranks but refuses to start.
- โ Noticeable drop in fuel efficiency.
- โ Hesitation or stumbling during acceleration.
- โ Rough or erratic idling.
- โ Transmission shifting issues or error messages.
Critical Information for Installation
IMPORTANT: After you purchase, please provide us with your vehicle’s 17-digit VIN. We cannot ship your part until we have programmed it.
Upon installation, the vehicle’s security system must be synchronized with the new ECM. This is a standard security procedure on all modern GM vehicles. If the vehicle does not start after installation, a Vehicle Theft Deterrent System Relearn must be performed. This procedure requires a professional scan tool with access to GM’s TIS2WEB or Techline Connect software. This is the responsibility of the installer. Other vehicle-specific setups, such as a crankshaft position variation relearn or injector flow rate programming, may also be necessary depending on your vehicle’s condition and the codes present.
Guaranteed Compatibility
This module is a direct replacement for a wide range of GM vehicles and is guaranteed to function correctly if your original part number is one of the following:
Interchangeable Part Numbers: 12692068, 12704476, 12686382, 12674052, 12674472, 12678815
This part is confirmed to fit your 2017 Cadillac XTS with the 3.6L Twin-Turbo engine (8th digit of VIN is ‘8’, RPO code LF3), as well as numerous other GM trucks and performance cars. By providing your VIN, you ensure you receive a perfectly matched and correctly programmed computer for a successful repair.