Home >> Jaguar >> 2012 >> XK 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 U201A-51: Control Module Main Calibration Data - Not programmed >> Possible Causes