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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:

How to read the displayed lines
Guiding lines which indicate the vehicle width and distances to objects with reference to the vehicle body line A are displayed on the monitor. Distance guide lines: Indicate distances from the vehicle body. Red line 1 : approx. 1.5 ft (0.5 m) Yellow line 2 : approx. 3 ft (1 m) Green ...

Front wheel hub
Exploded View Steering knuckle Splash guard Wheel stud Wheel hub and bearing Disc brake rotor Wheel hub lock nut Nut retainer Cotter pin Removal and Installation Remove the wheel and tire using power tool. Refer to WT-47, "Exploded View". Remove the brake ...

Automatic door locks
All doors lock automatically when the vehicle speed reaches 15 MPH (24 km/h). All doors unlock automatically when the ignition is placed in the OFF position (models with Intelligent Key system) or when the key is removed from the ignition switch (models without Intelligent Key system) ...

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