Home >> Land Rover >> 2021 >> Defender 90 S >> Repair and Diagnosis >> Quick Lookups >> Common Specs & Procedures >> Diagnostic Trouble Code Index Vehicles With: PHEV, DTC: Battery Charger Control Module (BCCM) -- Defender/L663 >> Diagnostic Trouble Code Index - Vehicles With: PHEV, DTC: Battery Charger Control Module (BCCM) (G2783598) >> Description And Operation >> Battery Charger Control Module (BCCM) - Plug-In Hybrid Electric Vehicle (PHEV) >> DTC P0C3B-4B: DC/DC Converter Temperature Sensor "A" High - Over temperature >> Possible Causes