DTC P084F-13: Park/Neutral Switch Output Circuit - Circuit open: Action

WARNING: This page is about a different car, the 2018 Jaguar XE and 2017 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.

Refer to the applicable SYSTEM WIRING DIAGRAM(S) and check the park/neutral output signal circuit for open circuit, high resistance. Repair the wiring harness as necessary
Using the manufacturer approved diagnostic system, clear the DTCs and perform routine - On Demand Self Test. If the fault persists, install a new transmission control switch