Description
Heats the heating wire with the power supply from the rear window defogger relay to prevent the rear window from fogging up.
Component Function Check
1. CHECK REAR WINDOW DEFOGGER
Check that the heating wire of rear window defogger is heated when turning the rear window defogger switch ON.
Is the inspection result normal? YES >> Rear window defogger is OK.
NO >> Refer to DEF-26, "Diagnosis Procedure".
Diagnosis Procedure
Regarding Wiring Diagram information, refer to DEF-12, "Wiring Diagram".
1. CHECK FUSES
Check if any of the following fuses in fuse block (J/B) are blown.

Is the inspection result normal? YES >> GO TO 2.
NO >> Replace the blown fuse after repairing the affected circuit.
2. CHECK REAR WINDOW DEFOGGER POWER SUPPLY CIRCUIT

Is the inspection result normal? YES >> GO TO 3.
NO >> Perform rear window defogger relay diagnosis. Refer to DEF-24, "Diagnosis Procedure".
3. CHECK POWER SUPPLY CIRCUIT

Is the inspection result normal? YES >> GO TO 4.
NO >> GO TO 5.
4. CHECK GROUND CIRCUIT

Is the inspection result normal? YES >> GO TO 6.
NO >> Repair or replace harness.
5. CHECK HARNESS CONTINUITY

Is the inspection result normal? YES >> Replace rear window defogger condenser. Refer to DEF-41, "Removal and Installation".
NO >> Replace or repair harness.
6. CHECK FILAMENT
Check filament.
Refer to DEF-27, "Component Inspection".
Is the inspection result normal? YES >> Refer to GI-41, "Intermittent Incident".
NO >> Repair filament. Refer to DEF-39, "Inspection and Repair".
Component Inspection
1. CHECK FILAMENT
Check the filament for damage or open circuits.
Refer to DEF-39, "Inspection and Repair".
Is the inspection result normal? YES >> Inspection End.
NO >> Repair filament. Refer to DEF-39, "Inspection and Repair".
Rear window defogger relay
Driver side door mirror defoggerBasic inspection
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
1.INTERVIEW CUSTOMER
Interview the customer to obtain as much information as possible about the
conditions and environment under
which the malfunction occurred.
>> GO TO 2.
2.SYMPTOM CHECK
Verify symptoms.
...
Exterior front
Front view camera (if so equipped)
Engine hood
Windshield wiper and washer switch, wiper blades
Windshield-washer fluid
Windshield
Power windows
Door locks, NISSAN Intelligent Key® (if so equipped), NISSAN Jackknife
key (if so equipped), key ...
Vehicle loading information
WARNING
It is extremely dangerous to ride
in a cargo area inside a vehicle. In
a collision, people riding in these
areas are more likely to be seriously
injured or killed.
Do not allow people to ride in any
area of your vehicle that is not
equipped ...