Diagnosis Procedure
- CHECK FUSES
Check if any of the following fuses in fuse block (J/B) are blown.
Component
Capacity
Fuse No.
Fuse block (J/B)
15 A
23
15 A
24
Is the inspection result normal?
YES
GO TO 2 .
NO
Replace the blown fuse after repairing the affected circuit.
- CHECK POWER SUPPLY CIRCUIT
- Turn ignition switch ON.
- Check voltage between rear window defogger connector and ground.
(+)
(-)
Condition
Voltage (V)
(Approx.)
Rear window defogger
Connector
Terminal
B49
1
Ground
Rear window defogger switch
ON
Battery voltage
OFF
0
Is the inspection result normal?
YES
GO TO 3 .
NO
GO TO 4 .
- CHECK GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect rear window defogger connector.
- Check continuity between rear window defogger connector and ground.
Rear window defogger
Ground
Continuity
Connector
Terminal
B47
2
Yes
Is the inspection result normal?
YES
GO TO 5 .
NO
Repair or replace harness.
- CHECK POWER SUPPLY CIRCUIT
- Turn ignition switch ON.
- Disconnect rear window defogger condenser connector.
- Check voltage between rear window defogger condenser connector and ground.
(+)
(-)
Condition
Voltage (V)
(Approx.)
Rear window defogger condenser
Connector
Terminal
B48
1
Ground
Rear window defogger switch
ON
Battery voltage
OFF
0
Is the inspection result normal?
YES
Replace rear window defogger condenser. Refer to Removal and Installation .
NO
Repair or replace harness.
- CHECK FILAMENT
Check filament. Refer to Component Inspection .
Is the inspection result normal?
YES
Refer to Intermittent Incident .
NO
Repair filament. Refer to Inspection and Repair .