Home >> Land Rover >> 2020 >> Defender 110 HSE >> Repair and Diagnosis >> General Information >> Specifications Index >> Diagnostic Trouble Code Index DTC: Transfer Case Control Module (TCCM) -- Defender/L663 >> Diagnostic Trouble Code Index - DTC: Transfer Case Control Module (TCCM) (G2400921) >> Description And Operation >> Transfer Case Control Module (TCCM) >> DTC P0810-28: Clutch Position Control Error - Signal bias level out of range/zero adjustment failure >> Possible Causes