Home >> Jaguar >> 2012 >> XJ Base >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Diagnostic Trouble Code Index DTC: Rear Integrated Control Panel (RICP) -- XJ/X351 >> Diagnostic Trouble Code (DTC) Index DTC: Rear Integrated Control Panel (RICP) >> Description And Operation >> Rear Integrated Control Panel (RICP) >> DTC U201A-57: Control Module Main Calibration Data - Invalid/incomplete software component >> Possible Causes