DTC P0850-64: Park/Neutral Switch Input Circuit - Signal plausibility failure: Action
WARNING: This page is about a different car, the 2018 Jaguar XF and 2017 Jaguar XF. However, it is still accessible from the selected car via links, so may be relevant.
- Refer to the appropriate system wiring diagrams and check the park neutral switch circuit between transmission control switch, body control module and powertrain control module for short circuit to ground, open circuit, high resistance
- Inspect connectors for signs of water ingress, and pins for damage and/or corrosion
- Using the Jaguar Land Rover Approved Diagnostic Equipment, clear the DTCs and retest