Home >> Land Rover >> 2015 >> LR2 Base >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code Index DTC: Fuel Fired Booster Heater Control Module (FFBHCM) >> Diagnostic Trouble Code Index DTC: Fuel Fired Booster Heater Control Module (FFBHCM) >> Description And Operation >> B1D23-13: Overheat Sensor - Circuit open >> Possible Causes