Home › Land Rover › 2021 › Range Rover Evoque S › Repair and Diagnosis › General Information › Specifications Index › Diagnostic Trouble Code Index DTC: Restraints Control Module (RCM) -- Range Rover EVOQUE/L551 › Diagnostic Trouble Code Index - DTC: Restraints Control Module (RCM) (G2932687) › Description And Operation › Restraints Control Module (RCM) › DTC B1004-81: Right Frontal Impact Classification Sensor - Invalid Serial Data Received › Possible Causes