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Home >> Infiniti >> 2019 >> QX80 Luxe, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 191 (Audio System & Navigation System (DTCS)) >> Multi Av (Display Control Unit) >> DTC U1240: Switch Conn >> DTC Description >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2020 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

U1240

SWITCH CONN

(Switch connection error)

1

Diagnosis condition

When ignition switch is ON.

Signal (terminal)

Multifunction switch power supply and ground circuit

Threshold

--

Diagnosis delay time

30 seconds or more

2

Diagnosis condition

When ignition switch is ON.

Signal (terminal)

AV communication signal

Threshold

Abnormality

Diagnosis delay time

30 seconds or more

NOTE: DTC "U1240" is displayed with DTC "U1300".