Diagnosis Procedure
Regarding Wiring Diagram information, refer to DEF-12, "Wiring Diagram".
1. CHECK REAR WINDOW DEFOGGER SWITCH
Check rear window defogger switch.
Refer to DEF-22, "WITH MANUAL A/C : 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-24, "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-26, "Component Function Check".
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair or replace the malfunctioning parts.
4. CHECK DOOR MIRROR DEFOGGER POWER SUPPLY

Is the inspection result normal? YES >> GO TO 5.
NO >> Replace fuse block (J/B).
5. CHECK BOTH DOOR MIRROR DEFOGGER
Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-41, "Intermittent Incident".
NO >> Repair or replace the malfunctioning parts.
Defogger system symptoms
Rear window defogger does not operate but both of door mirror defogger
operateECU diagnosis information
AV CONTROL UNIT
Reference Value
VALUES ON THE DIAGNOSIS TOOL
TERMINAL LAYOUT
PHYSICAL VALUES
DTC Index
BOSE SPEAKER AMP
Reference Value
TERMINAL LAYOUT
PHYSICAL VALUES
AROUND VIEW MONITOR CONTROL UNIT
WITHOUT DRIVER ASSISTANCE SYSTEM
WITHOUT DRIV ...
Preparation
Special Service Tools
The actual shape of the tools may differ from those illustrated here.
Tool number
(TechMate No.)
Tool name
Description
—
(J-39570)
Chassis Ear
Locating the noise
—
(J-50397)
NISSAN Squeak and Rattle
Kit
...
System description
DESCRIPTION
Engine Cooling System
Thermostat
Water outlet
Cylinder block (Thermostat housing)
Water inlet
Radiator
Water pump
Cylinder block
Cylinder head
Open
Closed
To electric throttle control actuator
To oil cooler
...