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Diagnosis Procedure

WARNING: This page is about a different car, the 2011 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK HORN FUNCTION

    Verify that horns function properly using horn switch.

    Does horn sound? 

    YES: GO TO 2.

    NO: Verify horn circuit. Refer to , "WIRING DIAGRAM ".

  2. CHECK HORN CONTROL CIRCUIT
    1. Disconnect horn relay.
    2. Disconnect IPDM E/R connector.
    3. Measure continuity between IPDM E/R harness connector and horn relay harness connector.
      CONTINUITY REFERENCE CHART

      IPDM E/R Horn relay Continuity
      Connector Terminal Connector Terminal
      E11 44 E5 1 Existed
    4. Measure continuity between IPDM E/R harness connector and ground.
      CONTINUITY REFERENCE CHART

      IPDM E/R Ground Continuity
      Connector Terminal
      E11 44 Not existed

      Is the inspection result normal? 

      YES: Replace IPDM E/R. Refer to , "REMOVAL AND INSTALLATION ".

      NO: Repair or replace harness.

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