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Home >> Infiniti >> 2016 >> Q50 Base, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Audio, Visual & Navigation System (INFINITI INTOUCH) (Introduction, Wiring Diagrams And Basic Inspection) (Except Hybrid) >> System Description >> Diagnosis System (Display Control Unit) >> On Board Diagnosis Function >> Self - Diagnosis Results >> Only Unit Part Is Displayed In Red.
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Only Unit Part Is Displayed In Red.

Screen switch Description Possible malfunction location / Action to take
DCU Malfunction is detected in display control unit power supply and ground circuits. Check display control unit power supply and ground circuits.
Refer to DIAGNOSIS PROCEDURE .
When detecting no malfunction in those components, replace display control unit.
Refer to REMOVAL AND INSTALLATION .
Audio Head Unit Malfunction is detected in AV control unit power supply and ground circuits. Check AV control unit power supply and ground circuits.
Refer to DIAGNOSIS PROCEDURE .
When detecting no malfunction in those components, replace AV control unit.
Refer to REMOVAL AND INSTALLATION .
Navigation unit Malfunction is detected in NAVI control unit power supply and ground circuits. Check NAVI control unit power supply and ground circuits.
Refer to DIAGNOSIS PROCEDURE .
When detecting no malfunction in those components, replace NAVI control unit.
Refer to REMOVAL AND INSTALLATION .
BOSE Amp. When either one of the following items are detected:
  • Sound signal circuits between BOSE amp. and each speaker are malfunctioning.
  • Sound signal circuits between BOSE amp. and either front or rear microphone is malfunctioning.
  • BOSE amp. malfunction is detected.
  • Malfunctioning speaker circuits.
  • Malfunctioning front or rear microphone circuits.
  • Replace BOSE amp. Refer to REMOVAL AND INSTALLATION .
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