DTC P176B-71: Transmission Range Selector Up and Down Position Control Error - Actuator stuck: Action

WARNING: This page is about a different car, the 2015 Jaguar XF, 2014 Jaguar XF, and 2013 Jaguar XF. However, it is still accessible from the selected car via links, so may be relevant.

Check for evidence of obstruction or abuse and rectify as appropriate
Using the manufacturer approved diagnostic system check and install the latest relevant level of software to the transmission control switch
Using the manufacturer approved diagnostic system, clear the DTCs and retest. If the fault persists, install a new transmission control switch