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Nissan Sentra Service Manual: Rear window defogger and door mirror defoggers do not operate

Nissan Sentra Service Manual / Driver controls / Defogger / Symptom diagnosis / Rear window defogger and door mirror defoggers do not operate

Diagnosis procedure

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

1. Check rear window defogger switch

Check rear window defogger switch.

Refer to def-30, "component function check".

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

No >> repair or replace the malfunctioning parts.

2. Check rear window defogger relay

Check rear window defogger relay.

Refer to def-32, "component function check".

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

No >> repair or replace the malfunctioning parts.

3. Check rear window defogger power supply and ground circuit

Check rear window defogger power supply and ground circuit.

Refer to def-33, "component function check".

Is the inspection result normal? Yes >> check intermittent incident. Refer to gi-39, "intermittent incident".

No >> repair or replace the malfunctioning parts.

Defogger system symptoms
Symptom table *: if equipped ...

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" ...

Other materials:

Warning lights
Anti-lock Braking System (ABS) warning light When the ignition switch is placed in the ON position, the Anti-lock Braking System (ABS) warning light illuminates and then turns off. This indicates the ABS is operational. If the ABS warning light illuminates while the engine is running or ...

Abs branch line circuit
Diagnosis Procedure 1.Check connector Turn the ignition switch off. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the abs actuator and electric unit (control unit) for damage, bend and loose connection (unit side and connector side). ...

Dtc/circuit diagnosis
Sport mode switch Component function check 1. Check sport mode switch operation Turn ignition switch on. Check sport mode indicator lamp turns on/off on combination meter when turn sport mode switch on/off. Is the inspection result normal? Yes >> inspection end. No >> ...

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