FixVault
Home › Nissan-Datsun › 2004 › Sentra SE-R › Repair and Diagnosis › External Pages › Different car › Section 1682 (Glass, Window System & Mirrors) › Rear Window Defogger › Rear Window Defogger Circuit Check

Rear Window Defogger Circuit Check

WARNING: This page is about a different car, the 2006 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FUSES 

    Check if any of the following fuses in IPDM E/R are blown.

    FUSE SPECIFICATION

    COMPONENT PARTS AMPERE FUSE NO.
    IPDM E/R 15A 46
    IPDM E/R 15A 47
    NOTE: Refer to , "COMPONENT PARTS AND HARNESS CONNECTOR LOCATION ".

    OK or NG 

    OK: GO TO 2.

    NG: If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse, refer to , "COMPONENT PARTS AND HARNESS CONNECTOR LOCATION "

  2. CHECK REAR WINDOW DEFOGGER POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect rear window defogger.
    3. Turn ignition switch ON.
    4. Check voltage between rear window defogger connector D651 terminal + and ground.
    TERMINAL VOLTAGE SPECIFICATION

    Connector Terminals Condition Voltage (V) (Approx.)
    (+) (-)
    D651 + Ground Rear window defogger switch ON. Battery voltage
    Rear window defogger switch OFF. 0

    OK or NG 

    OK: GO TO 3.

    NG: GO TO  4.

    Fig 1: Checking Voltage Between Rear Window Defogger Connector D651 Terminal + And Ground
    G04176097Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK REAR WINDOW DEFOGGER GROUND CIRCUIT 
    1. Turn ignition switch OFF.
    2. Check continuity between rear window defogger connector D604 terminal - and ground.

      - - Ground: Continuity should exist. 

    OK or NG 

    OK: Check filament. Refer to , "FILAMENT CHECK "

    • If filament is OK.

      Check the condition of the harness and the connector.

    • If filament is NG.

    Repair filament.

    NG: Repair or replace harness.

    Fig 2: Checking Continuity Between Rear Window Defogger Connector D604 Terminal - And Ground
    G04176098Courtesy of NISSAN MOTOR CO., U.S.A.
  4. CHECK REAR WINDOW DEFOGGER RELAY OUTPUT SIGNAL 
    1. Turn ignition switch OFF.
    2. Check voltage between IPDM E/R connector E124 terminal 60 and ground.
    TERMINAL VOLTAGE SPECIFICATION

    Connector Terminals Condition Voltage (V) (Approx.)
    (+) (-)
    E124 60 Ground Rear window defogger switch ON. Battery voltage
    Rear window defogger switch OFF. 0

    OK or NG 

    OK: Repair or replace harness.

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

    Fig 3: Checking Voltage Between IPDM E/R Connector E124 Terminal 60 And Ground
    G04205730Courtesy of NISSAN MOTOR CO., U.S.A.
About FixVault