Note: The following article is a best-effort reference for our customers and is provided "as-is" without any express or implied warranty. does not provide detailed troubleshooting as these are potentially complex tuner problems, not unlocking ones. Please proceed at your own risk.

After VIN unlocking and transferring to a new vehicle, I'm getting error 316!

On H&S Tuners, error 316 is a generic error that appears when the ECM of the truck can not be read. This could happen for a number of reasons including a bad OBD-II wiring hardness, bad HDMI cable, incompatible truck ECM software and worse, a corrupted tuner.

In this scenario, you'll need to check all of your cables and connections or seek the help of a good shop.