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Home >> Infiniti >> 2003 >> Q45 >> Repair and Diagnosis >> External Pages >> Different car >> Section 203 (Driver Information System) >> Vehicle Information And Integrated Switch System/With Navigation System >> Vehicle Condition Setting Is Not Possible >> 2. Check Communication Signal (AV-ME)

2. Check Communication Signal (AV-ME)

WARNING: This page is about a different car, the 2004 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.
  1. Connect connectors of combination meter, BCM, and AV and NAVI control unit.
  2. Turn ignition switch ON.
  3. Check voltage signal between AV and NAVI control unit harness connector B29 terminal 33 (LG) and ground with CONSULT-ll or oscilloscope. See Figure .

    33 (LG) - Ground: Refer to TERMINALS AND REFERENCE VALUE FOR AV AND NAVI CONTROL UNIT  .

OK or NG

  1. OK: GO TO 3  .
  2. NG: Replace AV and NAVI control unit
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