Home › Land Rover › 2015 › LR4 Base, AWD › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Restraints Control Module (RCM) -- LR4/L319 › Diagnostic Trouble Code Index DTC: Restraints Control Module (RCM) › Description And Operation › DTC B1213-2B: Passenger Seatbelt Buckle Pretensioner Deployment Control - Signal cross coupled › Possible Causes