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Home >> Infiniti >> 2013 >> EX37 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 32 (Security Control System) >> Component Diagnosis >> Hood Switch >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2008 Infiniti EX35. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK HOOD SWITCH SIGNAL 
    1. Turn ignition switch OFF.
    2. Check voltage between IPDM E/R harness connector and ground.
      TERMINALS VOLTAGE REFERENCE

      (+) (-) Condition Voltage (V) (Approx.)
      IPDM E/R
      Connector Terminal
      E9 104 Ground Hood Open 0
      Close Battery voltage

    Is the inspection result normal? 

    YES: GO TO  5.

    NO: GO TO  2.

  2. CHECK HOOD SWITCH CIRCUIT 
    1. Disconnect IPDM E/R connector E9 and hood switch connector.
    2. Check continuity between IPDM E/R harness connector and hood switch harness connector.
      TERMINALS CONTINUITY REFERENCE

      IPDM E/R Hood switch Continuity
      Connector Terminal Connector Terminal
      E9 104 E30 2 Existed
    3. Check continuity between IPDM E/R harness connector and ground.
      TERMINALS CONTINUITY REFERENCE

      IPDM E/R Ground Continuity
      Connector Terminal
      E9 104 Not existed

    Is the inspection result normal? 

    YES: GO TO  3.

    NO: Repair or replace harness.

  3. CHECK IPDM E/R OUTPUT 
    1. Connect IPDM E/R connector.
    2. Check voltage between IPDM E/R harness connector and ground.
      TERMINALS VOLTAGE REFERENCE

      (+) (-) Voltage (V) (Approx.)
      IPDM E/R
      Connector Terminal
      E9 104 Ground Battery voltage

    Is the inspection result normal? 

    YES: GO TO  4.

    NO: Replace IPDM E/R. Refer to REMOVAL AND INSTALLATION .

  4. CHECK HOOD SWITCH 

    Refer to COMPONENT INSPECTION  .

    Is the inspection result normal? 

    YES: GO TO  5.

    NO: Replace hood switch.

  5. CHECK INTERMITTENT INCIDENT 

    Refer to INTERMITTENT INCIDENT .

    INSPECTION END