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Home >> Infiniti >> 2006 >> FX35 RWD >> Repair and Diagnosis >> Body & Frame >> Windows >> Glass, Window & Mirrors >> Rear Window Defogger >> Check Door Mirror Defogger Power Supply Circuit

Check Door Mirror Defogger Power Supply Circuit

  1. CHECK FUSE 

    OK or NG 

    OK : GO TO 2.

    NG : If fuse is blown out, be sure to eliminate cause of malfunction before installing new fuse. Refer to "POWER SUPPLY ROUTING CIRCUIT ".

  2. CHECK POWER SUPPLY CIRCUIT 1 
    1. Turn ignition switch ON.
    2. Check voltage between fuse block (J/B) connector and ground.
      TERMINALS VOLTAGE CHART

      Connector Terminal (Wire color) Condition Voltage (V) (Approx.)
      (+) (-)
      E201 2C (B) Ground Rear window defogger switch ON Battery voltage
      Rear window defogger switch OFF 0
      Fig 1: Identifying Voltage Between Fuse Block (J/B) Connector Terminal 2C And Ground
      G04077444Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK : GO TO 3.

    NG : Repair or replace harness.

  3. CHECK POWER SUPPLY CIRCUIT 2 

    Check voltage between fuse block (J/B) connector and ground.

    TERMINALS VOLTAGE CHART

    Connector Terminal (Wire color) Condition Voltage (V) (Approx.)
    (+) (-)
    M2 5B (L) Ground Rear window defogger switch ON Battery voltage
    Rear window defogger switch OFF 0
    Fig 2: Identifying Voltage Between Fuse Block (J/B) Connector Terminal 5B And Ground
    G04077445Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK : GO TO 4.

    NG : Replace fuse block (J/B).

  4. CHECK DOOR MIRROR CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect fuse block (J/B) and door mirror connector.
    3. Check continuity between fuse block (J/B) connector and door mirror connector.
      TERMINALS CONTINUITY CHART

      A B Continuity
      Fuse block (J/B) connector Terminal Door mirror connector Terminal
      M2 5B (L) D2 (driver side)
      D32 (passenger side)
      4(L) Yes
      Fig 3: Identifying Continuity Between Fuse Block (J/B) Connector And Door Mirror Connector
      G04077446Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK : GO TO 5.

    NG : Repair or replace harness.

  5. CHECK GROUND CIRCUIT 

    Check continuity between each door mirror connector and ground.

    TERMINALS CONTINUITY CHART

    Door mirror connector terminal Ground Continuity
    D2 (driver side)
    D32 (passenger side)
    3(B) Yes
    Fig 4: Identifying Continuity Between Door Mirror Connector And Ground
    G04077447Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK : GO TO 6.

    NG : Repair or replace harness.

  6. CHECK DOOR MIRROR DEFOGGER 
    1. Connect door mirror connector.
    2. Check continuity between each door mirror connector.
      TERMINALS CONTINUITY CHART

      Door mirror connector terminal Terminal Continuity
      D2 (driver side)
      D32 (passenger side)
      3(B) 4(L) Yes
      Fig 5: Identifying Continuity Between Door Mirror Connector
      G04077448Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK : Check condition of harness and connector.

    NG : Replace malfunctioning door mirror.