Home >> Land Rover >> 2015 >> LR4 HSE, AWD >> Repair and Diagnosis >> General Information >> DTC Index >> Diagnostic Trouble Code Index DTC: Digital Radio Control Module (DRCM) -- LR4/L319 >> Diagnostic Trouble Code Index DTC: Digital Radio Control Module (DRCM) >> Description And Operation >> DTC B1A56-13: Antenna - Circuit open >> Possible Causes