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Home >> Infiniti >> 2002 >> Q45 >> Repair and Diagnosis >> External Pages >> Different car >> Section 218 (Driver Information System) >> Vehicle Information And Integrated Switch System/Without Navigation System >> Vehicle Condition Setting Is Not Possible >> 1. Check Harness

1. Check Harness

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. Disconnect connectors of AV control unit, combination meter and BCM.
  2. Check continuity AV control unit harness connector M77 terminal 34 (LG) and BCM harness connector M4 terminal 31 (LG).
    Fig 1: Checking Harness
    G00395958Courtesy of NISSAN MOTOR CO., U.S.A.

    Continuity should exist. 

  3. Check continuity AV control unit harness connector M77 terminal 35 (PU) and BCM harness connector M4 terminal 30 (PU).

    Continuity should exist. 

  4. Check continuity between AV control unit harness connector M77 terminal 34 (LG), 35 (PU) and ground.

    Continuity should not exist. 

OK or NG

  1. OK: GO TO 2  .
  2. NG: Check connector housings for disconnected or loose terminals. Repair harness or connector.
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