Home › Land Rover › 2019 › Range Rover Supercharged › Repair and Diagnosis › Quick Lookups › Common Specs & Procedures › Diagnostic Trouble Code Index DTC: Transmission Control Module (TCM) -- Range Rover/L405 › General Information › Description And Operation › Diagnostic Trouble Code Index - DTC: Transmission Control Module (TCM) (G2016296) › DTC P060B-04 Internal Control Module A/D Processing Performance - System internal failures › Possible Causes