Driver Side Door Mirror Defogger Circuit Check

1. Turn ignition switch OFF.
2. Disconnect door mirror defogger connector.
3. Check voltage between driver side door mirror defogger connector and ground.
   Fig 1: Checking Door Mirror Defogger Power Supply Circuit

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 2: Identifying Connector Voltage Specifications

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

OK or NG 

OK >> GO TO 2.

NG >> Repair or replace harness between door mirror defogger relay and driver side door mirror (Door mirror defogger).

1. Turn ignition switch OFF.
2. Check continuity between driver side door mirror defogger connector D2 terminal 5 (B) and ground.
   1. 5 (B) - Ground : Continuity should exist. 
Fig 3: Checking Door Mirror Defogger Ground Harness
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK >> Check the following, if it is OK, replace driver side door mirror glass.

• Door mirror defogger firmament continuity check.
• Check the harness for open or short between door mirror defogger relay and door mirror.

NG >> Repair or replace harness between driver side door mirror (Door mirror defogger) and ground.