DTC P0810-77: Clutch Position Control Error - Commanded position not reachable: Action

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

Using Jaguar Land Rover approved diagnostic equipment, select the DTC associated Guided Diagnostics to facilitate a transfer case clutch calibration. The Guided Diagnostics will subsequently test the system and report a DTC if a fault persists
Using Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, refer to the electrical circuit diagrams and check the circuit between the high/low range position sensor and the transfer case control module for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuit as required, clear DTC and retest
Start the engine and, using Jaguar Land Rover approved diagnostic equipment, read the DTCs. If the fault persists, install a new transfer case control module and configure as a new module. Refer to the Transfer Case Control Module Replacement Application instructions in the relevant Diagnosis and Testing Section For additional information, refer to: DIAGNOSTICS (307-01 Automatic Transmission/Transaxle, Diagnosis and Testing). Using Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest