Driver Side Door Mirror Defogger Circuit Check

WARNING: This page is about a different car, the 2005 Nissan 350Z. However, it is still accessible from the selected car via links, so may be relevant.

DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT INSPECTION
1. Turn ignition switch OFF.
2. Disconnect driver side door mirror defogger connector.
3. Turn ignition switch ON.
4. Rear window defogger switch operate, check voltage between driver side door mirror defogger connector and ground.
  
  Fig 1: Driver Side Door Mirror Defogger Connector & Ground Voltage Specifications Table
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Driver Side Door Mirror Defogger Connector & Ground Voltage Test
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: GO TO 2.
- NG: Repair or replace harness.
DOOR MIRROR DEFOGGER GROUND HARNESS INSPECTION
1. Turn ignition switch OFF.
2. Check continuity between driver side door mirror defogger connector D2 terminal 1 (B) and ground.
  - 1 (B) - Ground: Continuity should exist.
OK or NG
- OK: Check door mirror defogger firmament continuity.
- NG: Repair or replace harness.
Fig 3: Driver Side Door Mirror Defogger Connector D2 Terminal 1 & Ground Continuity Test
Courtesy of NISSAN MOTOR CO., U.S.A.