LEMON Manuals: Even more car manuals for everyone
Home >> Infiniti >> 2018 >> Q70 5.6 Luxe, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Exterior Lighting System (DTC/Circuit Diagnosis) (Except Hybrid) >> DTC/Circuit Diagnosis >> Headlamp (Hi) Circuit >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK HEADLAMP (HI) FUSE 
    1. Turn ignition switch OFF.
    2. Check that the following fuses are not blown (open).

      Unit

      Location

      Fuse No.

      Capacity

      Headlamp (HI) RH

      IPDM E/R

      #55

      10 A

      Headlamp (HI) LH

      #54

    Is the fuse blown (open)?

    YES

    Replace the blown fuse after repairing the affected circuit if a fuse is blown (open).

    NO

    GO TO 2.

  2. CHECK HEADLAMP (HI) POWER SUPPLY 

    SYMBOL With CONSULT

    1. Turn ignition switch ON.
    2. Select "EXTERNAL LAMPS" in "Active Test" mode of "IPDM E/R" using CONSULT.
    3. With operating the test items, check voltage between IPDM E/R harness connector and ground.

      +

      -

      Test item

      Voltage

      IPDM E/R

      Connector

      Terminal

      RH

      E8

      89

      Ground

      EXTERNAL LAMPS

      Hi

      9 - 16 V

      (Repeated 1 second)

      Off

      0 - 1 V

      LH

      90

      Hi

      9 - 16 V

      (Repeated 1 second)

      Off

      0 - 1 V

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Replace IPDM E/R. Refer to Removal and Installation .

  3. CHECK HEADLAMP (HI) POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect IPDM E/R connector and front combination lamp connector.
    3. Check continuity between IPDM E/R harness connector and front combination lamp harness connector.

      IPDM E/R

      Front combination lamp

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      RH

      E8

      89

      E49

      7

      Existed

      LH

      90

      E48

    Is the inspection result normal?

    YES

    Perform the LED headlamp diagnosis. Refer to Diagnosis Procedure .

    NO

    Repair or replace harness.