Home >> Land Rover >> 2021 >> Defender 110 X-Dynamic SE >> Repair and Diagnosis >> General Information >> Specifications Index >> Diagnostic Trouble Code Index DTC: Wireless Device Charger Module (WDCM) -- Defender/L663 >> Diagnostic Trouble Code Index - DTC: Wireless Device Charger Module (WDCM) (G2806379) >> Description And Operation >> Wireless Device Charger Module (WDCM) >> DTC U0037-88: Vehicle Communication Bus B - Bus off >> Possible Causes