Home >> Land Rover >> 2021 >> Defender 90 X >> Repair and Diagnosis (Single Page) >> Quick Lookups >> Common Specs & Procedures >> Diagnostic Trouble Code Index DTC: Head Up Display (HUD) -- Defender/L663 >> Diagnostic Trouble Code Index - DTC: Head Up Display (HUD) (G2400895) >> Description And Operation >> Head Up Display Control Module (HUDCM) >> DTC U3000-9A: Control Module - Component or System Operating Conditions >> Possible Causes