1.CHECK FUSE
Turn ignition switch OFF.
Check 10A fuse [No.3, 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 REAR WINDOW DEFOGGER CIRCUIT 1
Turn ignition switch ON.
Check voltage between BCM harness connector and ground.
(+)
(–)
Condition
Voltage (V)
(Approx.)
BCM
Connector
Terminal
M123
151
Ground
Rear window defogger switch: ON
0
Rear window defogger switch: OFF
Battery voltage
Is the inspection result normal?
YES
>>
Rear window defogger power supply circuit is OK.
NO
>>
GO TO 3
.
3.CHECK REAR WINDOW DEFOGGER CIRCUIT 2
Turn ignition switch OFF.
Disconnect BCM connector and fuse block (J/B).
Check continuity between BCM harness connector and fuse block (J/B) harness connector.
BCM
Fuse block (J/B)
Continuity
Connector
Terminal
Connector
Terminal
M123
151
M2
4B
Existed
Is the inspection result normal?
YES
>>
GO TO 4
.
NO
>>
Repair or replace harness.
4.CHECK REAR WINDOW DEFOGGER RELAY
Disconnect rear window defogger relay,
Check rear window defogger relay.
Refer to
Component Inspection
Is the inspection result normal?
YES
>>
GO TO 5
.
NO
>>
Replace rear window defogger relay.
5.CHECK FUSE BLOCK (J/B)
Install the rear window defogger relay.
Turn ignition switch ON.
Check voltage between fuse block (J/B) connector (fuse block side) and ground.
(+)
(–)
Voltage (V)
(Approx.)
Fuse block (J/B)
Connector
Terminal
M2
4B
Ground
Battery voltage
Is the inspection result normal?
YES
>>
GO TO 6
.
NO
>>
Replace fuse block (J/B).
6.CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to
Intermittent Incident
>>
INSPECTION END