LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Infiniti
>>
2018
>>
QX80 AWD
>>
Repair and Diagnosis (Single Page)
>>
Accessories & Equipment
>>
Entertainment Systems
>>
Audio System & Navigation System (DTCS)
>>
Multi Av (Display Control Unit)
>>
DTC U1240: Switch Conn
>>
DTC Description
>>
Possible Cause
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Possible Cause
Multifunction switch
Multifunction switch power supply and ground circuit
AV communication circuit is open