Home >> Land Rover >> 2014 >> Range Rover Base >> Repair and Diagnosis >> Transmission >> Transfer Case >> Diagnostic Trouble Code Index DTC: Transfer Case Control Module (TCCM) -- Range Rover/L405 >> Diagnostic Trouble Code Index DTC: Transfer Case Control Module (TCCM) >> Description And Operation >> DTC P18A5-37: Motion/Position Sensor A Signal Circuit - Signal frequency too high >> Possible Causes