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Home >> Infiniti >> 2023 >> QX55 Essential >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> Audio, Visual & Navigation System (INFINITI INTOUCH) >> System Description >> Diagnosis System (Av Control Unit) >> On Board Diagnosis Function >> A Connecting Cable Between Units Is Displayed In Yellow (Head Unit)
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A Connecting Cable Between Units Is Displayed In Yellow (Head Unit)

Area with yellow connection lines

Description

Possible malfunction location / Action to take

Head Unit <=> Amplifier

Internal amplifier malfunction detected.

Replace the AV control unit.

Refer to Removal and Installation .

Head Unit <=> Conn Modules

Internal Bluetooth ® module malfunction detected.

Replace the AV control unit.

Refer to Removal and Installation .

Head Unit <=> Antenna

Antenna connection malfunction detected.

Antenna disconnected.

Refer to Diagnosis Procedure .

Head Unit <=> XM

Satellite antenna connection malfunction detected.

Satellite antenna disconnected.

Refer to Diagnosis Procedure .

Head Unit <=> GPS

GPS antenna connection malfunction detected.

GPS antenna disconnected.

Refer to Diagnosis Procedure .

Head unit <=> LVDS

  • LVDS harness for display unit connection malfunction detected.
  • LVDS harness for integral switch connection malfunction detected.

LVDS harness disconnected.

Head Unit <=> Microphone

Microphone connection malfunction detected.

Microphone disconnected.

Refer to DTC Diagnosis Procedure .

Head unit <=> USB

  • USB harness for front auxiliary input jacks control unit connection malfunction detected.
  • USB harness for TCU connection malfunction detected.

USB harness disconnected.

Head Unit <=> FAN

Internal fan malfunction detected.

Replace the AV control unit.

Refer to Removal and Installation .