FixVault
Home
›
Land Rover
›
2021
›
Defender 90
›
Repair and Diagnosis
›
General Information
›
Specifications Index
›
Diagnostic Trouble Code Index DTC: HVAC Control Module (HVAC) -- Defender/L663
›
Diagnostic Trouble Code Index - DTC: HVAC Control Module (HVAC) (G2400894)
›
Description And Operation
›
HVAC Control Module (HVAC)
›
DTC U3000-04: Control Module - System internal failures
›
Action
DTC U3000-04: Control Module - System internal failures: Action
Using the Jaguar Land Rover approved diagnostic equipment, clear the Diagnostic Trouble Code(s) and retest. If the fault persists, install a new HVAC control module