Home >> Jaguar >> 2013 >> XJ Base, AWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Diagnostic Trouble Code Index DTC: Automatic Temperature Control Module (ATCM) -- XJ/X351 >> DIAGNOSTIC TROUBLE CODE (DTC) INDEX DTC: Automatic Temperature Control Module (ATCM) >> Description And Operation >> Automatic Temperature Control Module (ATCM) >> DTC P1308-12: A/C Clutch Circuit - Circuit short to battery >> Possible Causes