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Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis >> Electrical >> Gauges >> Driver Information System >> Warning Chime >> Key Switch Insert Signal Inspection >> 2. Check Key Switch Circuit
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2. Check Key Switch Circuit

  1. Remove the key from the ignition key cylinder.
  2. Disconnect the key switch and key lock solenoid (key switch) connector.
  3. Check continuity between BCM harness connector M4 terminal 69 (PU/W) and key switch and key lock solenoid (key switch) harness connector M64 terminal 4 (PU/W).

    Continuity should exist. 

    Fig 1: Checking Key Switch Circuit
    G00394112Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

  1. OK: GO TO 3  .
  2. NG: Repair harness or connector.