LEMON Manuals: Even more car manuals for everyone
Home >> Infiniti >> 2008 >> G35 x >> Repair and Diagnosis >> External Pages >> Different car >> Section 17 (Security Control System) >> Component Diagnosis >> Hood Switch >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2008 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK HOOD SWITCH

    Check hood switch and hood fitting condition.

    Is the inspection result normal? 

    YES: GO TO 2

    NO: Adjust installation of hood switch.

  2. CHECK HOOD SWITCH INPUT SIGNAL

    With CONSULT-III

    Check "HOOD SW" in "BCM" DATA MONITOR mode with CONSULT-III. Refer to "THEFT ALM : CONSULT-III FUNCTION (BCM - THEFT ALM) ".

    When hood is open : HOOD SW ON 

    When hood is closed : HOOD SW OFF 

    Without CONSULT-III

    Check voltage between IPDM E/R harness connector E122 terminal 41 and ground.

    VOLTAGE SPECIFICATION

    Connector Terminal Condition of hood Voltage (V) (Approx.)
    (+) (-)
    E122 41 Ground Open 0
    Closed Battery voltage
    Fig 1: Checking Voltage Between IPDM E/R Harness Connector E122 Terminal 41 And Ground
    G05230835

    Is the inspection result normal? 

    YES: Hood switch is OK.

    NO: GO TO 3

  3. CHECK HOOD SWITCH SIGNAL CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect IPDM E/R connector E122 and hood switch connector.
    3. Check continuity between IPDM E/R connector (A) E122 terminal 41 and hood switch connector (B) E8 terminal 2.
      CONTINUITY SPECIFICATION

      Terminals Continuity
      IPDM E/R Connector Terminal Hood switch connector Terminal
      E122 41 E8 2 Yes
    4. Check continuity between IPDM E/R connector (A) E122 terminal 41 and ground.
      CONTINUITY SPECIFICATION

      IPDM E/R Connector Terminals Continuity
      E122 41 Ground No
      Fig 2: Checking Continuity Between IPDM E/R Connector E122 Terminal 41 And Ground
      G05742365

    Is the inspection result normal? 

    YES: GO TO 4

    NO: Repair or replace harness.

  4. CHECK HOOD SWITCH GROUND CIRCUIT

    Check continuity between hood switch connector E8 terminal 1 and ground.

    CONTINUITY SPECIFICATION

    Connector Terminals Continuity
    E8 1 Ground Yes
    Fig 3: Checking Continuity Between Hood Switch Connector E8 Terminal 1 And Ground
    G05742366

    Is the inspection result normal? 

    YES: GO TO 5

    NO: Repair or replace harness.

  5. CHECK HOOD SWITCH

    Check continuity between hood switch terminals 1 and 2.

    CONTINUITY SPECIFICATION

    Terminals Condition Continuity
    1-2 Pressed No
    Released Yes
    Fig 4: Checking Continuity Between Hood Switch Terminals 1 And 2
    G05230836

    Is the inspection result normal? 

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

    NO: Replace hood switch.

scientia non olet · About LEMON Manuals