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Home >> Infiniti >> 2012 >> G37 IPL, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 93 (Audio, Visual And Navigation System) >> BOSE Audio With Navigation >> DTC/Circuit Diagnosis >> RGB Digital Image Signal Circuit >> Description >> Diagnosis Procedure
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Diagnosis Procedure

WARNING: This page is about a different car, the 2011 Nissan 370Z. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CONTINUITY RGB DIGITAL IMAGE SIGNAL CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect front display unit connector and AV control unit connector.
    3. Check continuity between front display unit harness connector and AV control unit harness connector.
      CONTINUITY SPECIFICATION

      Front display unit AV control unit Continuity
      Connector Terminals Connector Terminals
      M454 27 M452 157 Existed
      28 158
    4. Check continuity between front display unit harness connector and ground.
    CONTINUITY SPECIFICATION

    Front display unit Ground Continuity
    Connector Terminals
    M454 27 Not existed
    28

    Is the inspection result normal? 

    YES: Go to 2

    NO: Repair harness or connector.

  2. CHECK RGB DIGITAL IMAGE SIGNAL
  1. Connect AV control unit connector.
  2. Turn ignition switch ON.
  3. Check voltage between front display unit harness connector and ground.
VOLTAGE SPECIFICATION

(+) (-) Condition Voltage (Approx.)
Front display unit
Connector Terminal
M454 27 Ground Not connected connector. 1.3 V
28

Is the inspection result normal? 

YES: Replace front display unit. Refer to "REMOVAL AND INSTALLATION ".

NO: Replace AV control unit. Refer to "REMOVAL AND INSTALLATION ".