Nissan Rogue (T33) 2021-Present Service Manual: System Description :: Component Parts. Defogger System
Defogger System
Component Parts Location

| A. | View of engine compartment lower left | B. | View of Fuse block (J/B) (fuse block (J/B) removed) | ![]() |
Nissan Ariya Vehicle front |
| No. | Component | Function |
|---|---|---|
| 1. | Rear window defogger | Refer to Rear Window Defogger. |
| 2. | Rear window defogger condenser | Reduce the noise of rear window defogger operation. |
| 3. |
AC switch assembly (Rear window defogger switch) |
|
| 4. | Door mirror RH (mirror defogger) (if so equipped) | Refer to Door Mirror Defogger. |
| 5. | A/C amp. |
|
| 6. | Wiper deicer (if so equipped) | Refer to Wiper Deicer. |
| 7. | BCM (Body Control Module) |
|
| 8. | Door mirror LH (mirror defogger) (if so equipped) | Refer to Door Mirror Defogger. |
| 9. | Stop lamp relay and wiper deicer relay (wiper deicer relay) (if so equipped) | Operates the wiper deicer with the control signal from BCM. |
| 10. | Rear window defogger relay | Operates the rear window defogger, door mirror defogger and the wiper deicer with the control signal from BCM. |
Rear Window Defogger
COMPONENT FUNCTION WITHIN SYSTEM
Heats the heating wire with the power supply from the rear window defogger relay to prevent the rear window from fogging up.
INDIVIDUAL COMPONENT FUNCTION
Heats the heating wire.
COMPONENT OPERATION
When the rear window defogger switch is turned ON, current flows to the rear window defogger, heating the heat wires.

COMPONENT PARTS LOCATION
Contained inside the back door window glass.
Refer to Component Parts Location.
Door Mirror Defogger
COMPONENT FUNCTION WITHIN SYSTEM
Heats the heating wire with the power supply from the rear window defogger relay to prevent the door mirror from fogging up.
INDIVIDUAL COMPONENT FUNCTION
Heats the heating wire.
COMPONENT OPERATION
When the rear window defogger switch is turned ON, current flows to the mirror defogger, heating the heat wires.

COMPONENT PARTS LOCATION
Contained inside the glass mirror.
Refer to Component Parts Location.
Rear Window Defogger Relay
COMPONENT FUNCTION WITHIN SYSTEM
This relay activates according to the rear window defogger relay control signal that is controlled by BCM, and activates the defogger system.
INDIVIDUAL COMPONENT FUNCTION
It turns the relay switch ON/OFF and sends a current from the battery to the defogger system.
COMPONENT OPERATION
The rear window defogger relay utilizes a normal open relay.

COMPONENT PARTS LOCATION
The rear window defogger relay is installed to the fuse block (J/B).
Refer to Component Parts Location.
Wiper Deicer
Heats the heating wire with the power supply from the wiper deicer relay to thaw by heating of wiper blade and glass.

Other materials:
Power Supply and Ground Circuit
Av Control Unit
Diagnosis Procedure
CHECK FUSE
Turn ignition switch OFF.
Check that the following fuse is not blown (open)
Power source Fuse No. Capacity
Battery
#25
20 A
Is the fuse blown (open)?
YES>>
Replace fuse after repairing the applicable circuit ...
Symptom Diagnosis. Sunshade Does Not Operate Properly
Description
Sunshade does not operate normally.
Sunshade open/close does not operate.
Sunshade open/close operation is slow.
Judder occurs during open/close operation of sunshade.
Diagnosis Procedure
CHECK SUNSHADE
Check sunshade for damage, deformation, of interference with oth ...
Malfunction Area Chart
Vehicle CAN Communication Circuit
MAIN LINE Malfunction area Reference
Main line between A/C amp. and air bag diagnosis sensor unit circuit
Diagnosis Procedure
Main line between active noise control unit and automatic back door control unit circuit
Diagnosis Procedure
Main line ...

