Rear Window Defogger Circuit Check

1. Turn ignition switch OFF.
2. Disconnect rear window defogger connector.
3. Turn ignition switch ON.
4. Check voltage between rear window defogger connector and ground.
   Fig 1: Connector Terminal Wire Color Specification

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 2: Checking Voltage Between Rear Window Defogger Connector And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

1. OK: GO TO 2.
2. NG: GO TO  3 .

1. Turn ignition switch OFF.
2. Check continuity between rear window defogger connector D114 terminal 2 and ground.
   1. 2 (B) - Ground: Continuity should exist. 

OK or NG 

1. OK: Check filament. Refer to "FILAMENT CHECK  "
   • If filament is OK, check condition of harness and connector.
   • If filament is NG, repair filament.
2. NG: Repair or replace harness.

Fig 3: Checking Continuity Between Rear Window Defogger Connector D114 Terminal 2 And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

1. Turn ignition switch OFF.
2. Remove rear window defogger relay.
3. Check continuity between rear window defogger relay connector E13 terminal 5, 7 and rear window defogger connector D104 terminal 1.
   1. 5 (B) - 1 (W): Continuity should exist. 
   2. 7 (B) - 1 (W): Continuity should exist. 

OK or NG 

1. OK: Check condition of harness and connector.
2. NG: Repair or replace harness.

Fig 4: Checking Rear Window Defogger Relay Circuit

Courtesy of NISSAN MOTOR CO., U.S.A.