REAR WINDOW DEFOGGER

1. Perform Active Test (“REAR DEFOGGER”) with CONSULT-III.
2. Touch “ON”.
3. Check that the rear window heating wire is getting warmer.

YES>>Rear window defogger is OK.

NO>>Refer to Diagnosis Procedure

1. Turn ignition switch OFF.
2. Check the following.
• 20A fuse [No.15, located in fuse block (J/B)]

YES>>GO TO 2.

NO>>Replace the blown fuse after repairing the affected circuit if a fuse is blown.

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

   
   

YES>>GO TO 3.

NO>>GO TO 4.

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

   
   

YES>>GO TO 7.

NO>>Repair or replace harness between rear window defogger and ground.

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

   
   

YES>>GO TO 5.

NO>>Repair or replace harness between condenser and rear window defogger.

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

   
   

YES>>GO TO 6.

NO>>Repair or replace harness between fuse block (J/B) and condenser.

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

   
   

YES>>GO TO 8.

NO>>Replace fuse block (J/B).

Check the filament for damage or blown.
Refer to Inspection and Repair

YES>>GO TO 8.

NO>>Repair filament.

Check intermittent incident.
Refer to Intermittent Incident

>>INSPECTION END