Nissan Sentra Service Manual: 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? 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
- Check door mirror lh. Refer to def-36, "component inspection".
- 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:
Control Units and Electrical Parts
PRECAUTIONS
Never reverse polarity of battery terminals.
Install only parts specified for a vehicle.
Before replacing the control unit, check the input and output and
functions of the component parts.
Do not apply excessive force when disconnecting a connector.
Do not apply exce ...
On board refueling vapor recovery(ORVR)
Component Function Check
1.CHECK ORVR FUNCTION
Check whether the following symptoms are present.
Fuel odor from EVAP canister is strong
Cannot refuel/Fuel odor from the fuel filler opening is strong while
refueling.
Are any symptoms present?
YES >> Proceed to EC-468, "Diagn ...
Three-way catalyst
The three-way catalyst is an emission control
device installed in the exhaust system. Exhaust
gases in the three-way catalyst are burned at
high temperatures to help reduce pollutants.
WARNING
The exhaust gas and the exhaust system
are very hot. Keep people, animals
or flammab ...
