Door Mirror LH Defogger Circuit Check (Without Auto Dimming Outside Mirrors)

WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door mirror LH.
3. Turn ignition switch ON.
4. Check voltage between door mirror LH connector and ground.
  
  Fig 1: Terminals Voltage Reference Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: GO TO 2
- NG: Repair or replace harness.
  
  Fig 2: Checking Voltage Between Door Mirror LH Connector And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK DOOR MIRROR DEFOGGER GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between door mirror LH connector D4 terminal 1 and ground.
  1 (B) - Ground: Continuity should exist.
OK or NG
- OK: GO TO 3
- NG: Repair or replace harness.
  
  Fig 3: Checking Continuity Between Door Mirror LH Connector D4 Terminal 1 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK DOOR MIRROR DEFOGGER
1. Connect door mirror LH.
2. Check continuity between door mirror LH connector D4 terminals 1 and 2.
  2 (L/B) - 1 (B): Continuity should exist.
OK or NG
- OK: Repair or replace harness.
- NG: Replace door mirror LH. Refer to "DOOR MIRROR "
  
  Fig 4: Checking Continuity Between Door Mirror LH Connector D4 Terminals 1 And 2
  Courtesy of NISSAN MOTOR CO., U.S.A.