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Home >> Infiniti >> 2010 >> G37 Base, 2D Coupe >> Repair and Diagnosis >> External Pages >> Different car >> Section 221 (Security Control System) >> Without Intelligent Key System >> DTC/Circuit Diagnosis >> Horn Function >> Diagnosis Procedure
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Diagnosis Procedure

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

    Check that horn functions properly using horn switch.

    Do horns sound? 

    YES: GO TO 2.

    NO: Check horn circuit. Refer to "WIRING DIAGRAM ".

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

      IPDM E/R Horn relay Continuity
      Connector Terminal Connector Terminal
      E13 34 E5 1 Existed
    4. Check continuity between IPDM E/R harness connector and ground.
      CONNECTOR TERMINALS CONTINUITY REFERENCE CHART

      IPDM E/R Ground Continuity
      Connector Terminal
      E13 34 Not existed

      Is the inspection result normal? 

      YES: GO TO 3.

      NO: Repair or replace harness.

  3. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    INSPECTION END

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