Rear Window Defogger Circuit Check

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

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 "SERVICE INFORMATION FOR ELECTRICAL INCIDENT ".

1. Turn ignition switch OFF.
2. Disconnect rear window defogger.
3. Turn ignition switch ON.
4. Check voltage between rear window defogger connector B165 terminal + and ground.
   REAR WINDOW DEFOGGER CONNECTOR TERMINAL AND GROUND VOLTAGE SPECIFICATIONS
   
   

   Connector	Terminals		Condition	Voltage (V) (Approx.)
   	(+)	(-)
   B165	+	Ground	Rear window defogger switch ON.	Battery voltage
   			Rear window defogger switch OFF.	0

OK or NG 

• OK : GO TO 2.
• NG : Repair or replace harness.
  Fig 1: Checking Voltage Between Rear Window Defogger Connector B165 Terminal Positive And Ground

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

1. Turn ignition switch OFF.
2. Check continuity between rear window defogger connector B210 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 B210 Terminal - And Ground

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

1. Turn ignition switch ON.
2. Check voltage between IPDM E/R connector E124 terminal 60 and ground.
   IPDM E/R CONNECTOR TERMINAL AND GROUND VOLTAGE SPECIFICATIONS
   
   

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

   Fig 3: Checking Voltage Between IPDM E/R Connector E124 Terminal 60 And Ground

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

OK or NG 

• OK : Replace IPDM E/R. Refer to "REMOVAL AND INSTALLATION OF IPDM E/R ".
• NG : Repair or replace harness.