Home >> Land Rover >> 2021 >> Defender 90 X >> Repair and Diagnosis (Single Page) >> Quick Lookups >> Common Specs & Procedures >> Diagnostic Trouble Code Index Vehicles With: MHEV DTC: Electric Power Inverter Converter Control Module "D" (EPICD) -- Defender/L663 >> Diagnostic Trouble Code Index - Vehicles With: MHEV, DTC: Electric Power Inverter Converter Control Module 'D' (EPICD) (G2426911) >> Description And Operation >> Electric Power Inverter Converter Control Module 'D' (EPICD) - Mild Hybrid Electric Vehicle (MHEV) >> DTC U0064-88: Vehicle Communication Bus E - Bus off >> Possible Causes