Home › Land Rover › 2014 › LR4 Base, AWD › Repair and Diagnosis › Engine Performance › Engine Control Systems › Diagnostic Trouble Code Index V6 S/C 3.0L Petrol, DTC: Engine Control Module (ECM) -- LR4/L319 › Diagnostic Trouble Code Index V6 S/C 3.0L Petrol, DTC: Engine Control Module (ECM) › Description Of Operation › DTC P0606-86: Control Module Processor - Signal invalid › Possible Causes