1.CHECK FUSE

1. Turn ignition switch OFF.
2. Check the following.

- 20A fuse [No.15, located in fuse block (J/B)]

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

1. Turn ignition switch ON.
2. Check voltage between rear window defogger harness connector and ground.

   (+) | (–) | Condition | Voltage (V) (Approx.)
   Rear window defogger
   Connector | Terminal
   B471 | 1 | Ground | Rear window defogger switch: ON | Battery voltage
   Rear window defogger switch: OFF | 0

Is the inspection result normal?
YES>>GO TO 3.
NO>>GO TO 4.
3.CHECK GROUND CIRCUIT

1. Turn ignition switch OFF.
2. Disconnect rear window defogger connector.
3. Check continuity between rear window defogger harness connector and ground.

   Rear window defogger | Ground | Continuity
   Connector | Terminal
   B472 | 2 | Existed

Is the inspection result normal?
YES>>GO TO 7.
NO>>Repair or replace harness between rear window defogger and ground.
4.CHECK REAR WINDOW DEFOGGER CIRCUIT 1

1. Turn ignition switch OFF.
2. Disconnect condenser connector.
3. Check continuity between condenser harness connector and rear window defogger harness connector.

   Condenser | Rear window defogger | Continuity
   Connector | Terminal | Connector | Terminal
   B33 | 1 | B471 | 1 | Existed

4. Check continuity between condenser harness connector and ground.

   Condenser | Ground | Continuity
   Connector | Terminal
   B33 | 1 | Not existed

Is the inspection result normal?
YES>>GO TO 5.
NO>>Repair or replace harness between condenser and rear window defogger.
5.CHECK REAR WINDOW DEFOGGER CIRCUIT 2

1. Disconnect fuse block (J/B) connector.
2. Check continuity between fuse block (J/B) harness connector and condenser harness connector.

   Fuse block (J/B) | Condenser | Continuity
   Connector | Terminal | Connector | Terminal
   B6 | 10G | B33 | 1 | Existed

3. Check continuity between fuse block (J/B) harness connector and ground.

   Fuse block (J/B) | Ground | Continuity
   Connector | Terminal
   B6 | 10G | Not existed

Is the inspection result normal?
YES>>GO TO 6.
NO>>Repair or replace harness between fuse block (J/B) and condenser.
6.CHECK FUSE BLOCK (J/B)

1. Turn ignition switch ON.
2. Check voltage between fuse block (J/B) (fuse block side) and ground.

   (+) | (–) | Condition | Voltage (V) (Approx.)
   Fuse block (J/B)
   Connector | Terminal
   B6 | 10G | Ground | Rear window defogger switch: ON | Battery voltage
   Rear window defogger switch: OFF | 0

Is the inspection result normal?
YES>>GO TO 8.
NO>>Replace fuse block (J/B).
7.CHECK FILAMENT
Check the filament for damage or blown.
Refer to Inspection and Repair
Is the inspection result normal?
YES>>GO TO 8.
NO>>Repair filament.
8.CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to Intermittent Incident
>>INSPECTION END