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Nissan Sentra Service Manual: Both doors mirror defogger don’t operate but rear window defogger operates

Nissan Sentra Service Manual / Driver controls / Defogger / Symptom diagnosis / Both doors mirror defogger don’t operate but rear window defogger operates

Diagnosis procedure

Regarding Wiring Diagram information, refer to DEF-20, "Wiring Diagram".

1. Check door mirror defogger fuse

Check if the following fuse in fuse block (J/B) is blown.

Is the inspection result normal?


Is the inspection result normal? Yes >> go to 2.

No >> replace the blown fuse after repairing the affected circuit.

2. Check door mirror defogger power supply circuit

Check door mirror defogger power supply and ground circuit.

Refer to def-35, "component function check" (driver side) or def-37, "component function check" (passenger side).

Is the inspection result normal? Yes >> go to 3.

No >> repair or replace the malfunctioning parts.

3. Check both door mirror defogger

  1. Check door mirror lh. Refer to def-36, "component inspection".
  2. Check door mirror RH. Refer to DEF-38, "Component Inspection".

Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".

NO >> Repair or replace the malfunctioning parts.

Rear window defogger does not operate but both door mirror defoggers operate
Diagnosis procedure 1. Check rear window defogger power supply and ground circuit Check rear window defogger power supply and ground circuit. Refer to DEF-32, "Component Function Check" ...

Driver side door mirror defogger does not operate
Diagnosis procedure 1. Check door mirror defogger lh Check door mirror defogger LH. Refer to DEF-35, "Component Function Check". Is the inspection result normal? YES >> Refer ...

Other materials:

Removal and installation
Audio unit Exploded view Audio unit Audio unit bracket (LH) Audio unit bracket (rh) Removal and installation Removal Disconnect the negative battery terminal. Refer to pg-50, "removal and installation (battery)". Remove cluster lid c lower. Refer to ip-20, "re ...

Door sash tape
Exploded view Front door sash upper tape Front door assembly Rear door assembly Front door sash rear tape Rear door sash front tape Rear door sash rear tape Rear door sash upper tape Front door sash tape FRONT DOOR SASH TAPE : Removal and Installation REMOVAL Heat door sash ...

Steering column covers
Removal and Installation REMOVAL Remove the steering column cover screws (A), then remove the steering column upper (1) and lower (2) covers. NOTE: Shown with steering wheel removed for clarity. If necessary, rotate steering wheel to access steering column cover screws (A). ...

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