Home >> Land Rover >> 2021 >> Discovery R-Dynamic HSE >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code Index DTC: CHASIS Control Module (CHCM) -- Discovery/L462 >> General Information >> Description And Operation >> Diagnostic Trouble Code Index - DTC: Chassis Control Module (CHCM) (G2412900) >> DTC U0046-81: Vehicle Communication Bus C - Invalid serial data received >> Possible Causes