Home >> Jaguar >> 2014 >> XK Base, 2D Convertible >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Diagnostic Trouble Code Index DTC: Restraints Control Module (RCM) -- XK/X150 >> Diagnostic Trouble Code Index DTC: Restraints Control Module (RCM) >> Description And Operation >> Restraints Control Module [RCM] >> DTC B1D77-1A: Right Roll Over Protection System - Circuit resistance below threshold >> Possible Causes