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Diagnosis Procedure

WARNING: This page is about a different car, the 2013 Nissan Cube. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK HORN FUNCTION 

    Check horn function with horn switch.

    Do the horn sound? 

    YES: GO TO 2.

    NO: Refer to "WIRING DIAGRAM - HORN ".

  2. CHECK IPDM E/R POWER SUPPLY 
    1. Disconnect IPDM E/R connector.
    2. Check voltage between IPDM E/R harness connector and ground.
      (+) (-) Voltage (V) (Approx.)
      IPDM E/R
      Connector Terminal
      E13 34 Ground Battery voltage

      Is the inspection result normal? 

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

      NO: GO TO 3.

  3. CHECK IPDM E/R POWER SUPPLY CIRCUIT 
    1. Disconnect horn relay connector.
    2. Check continuity between IPDM E/R harness connector and horn relay harness connector.
      IPDM E/R Horn relay Continuity
      Connector Terminal Connector Terminal
      E13 34 E5 1 Existed
    3. Check continuity between IPDM E/R harness connector and ground.
      IPDM E/R Ground Continuity
      Connector Terminal
      E13 34 Not existed

      Is the inspection result normal? 

      YES: GO TO 4.

      NO: Repair or replace harness.

  4. CHECK INTERMITTENT INCIDENT 

    : INSPECTION END

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