Home >> Land Rover >> 2020 >> Defender 110 X >> Repair and Diagnosis >> General Information >> Specifications Index >> Diagnostic Trouble Code Index DTC: Infotainment Compute Control Module (ICCM) -- Defender/L663 >> Diagnostic Trouble Code Index - DTC: Infotainment Compute Control Module (ICCM) (G2400897) >> Description And Operation >> Infotainment Compute Control Module >> DTC B14B4-12: Bluetooth® Antenna #1 - Circuit short to battery >> Possible Causes