Home › Land Rover › 2021 › Range Rover Base › Repair and Diagnosis › Quick Lookups › Common Specs & Procedures › Diagnostic Trouble Code Index DTC: Transfer Case Control Module (TCCM) -- Range Rover/L405 › General Information › Description And Operation › Diagnostic Trouble Code Index - DTC: Transfer Case Control Module (TCCM) (G2016291) › DTC U2016-06: Control Module Main Software - Algorithm based failures › Possible Causes