Infiniti EX35. Manual — part 432
DEF-12
< COMPONENT DIAGNOSIS >
REAR WINDOW DEFOGGER RELAY
YES
>> GO TO 5.
NO
>> Replace rear window defogger relay.
5.
CHECK FUSE BLOCK (J/B)
1.
Install the rear window defogger relay.
2.
Turn ignition switch ON.
3.
Check voltage between fuse block (J/B) connector (fuse block side) and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace fuse block (J/B).
6.
CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to
GI-38, "Intermittent Incident"
>> INSPECTION END.
Component Inspection
INFOID:0000000003136654
1.
CHECK REAR WINDOW DEFOGGER RELAY
1.
Turn ignition switch OFF.
2.
Disconnect rear window defogger relay.
3.
Check rear window defogger relay.
Is the inspection result normal?
YES
>> INSPECTION END.
NO
>> Replace rear window defogger relay.
(+)
(–)
Voltage (V)
(Approx.)
Fuse block (J/B)
Connector
Terminal
M2
4B
Ground
Battery voltage
Rear window
defogger relay
Condition
Continuity
Terminal
3
5
12 V direct current supply between termi-
nals 1 and 2.
Existed
No current supply
Not existed
SEF497Y
REAR WINDOW DEFOGGER
DEF-13
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
DEF
N
O
P
REAR WINDOW DEFOGGER
Description
INFOID:0000000003136655
Heats the heating wire with the power supply from the rear window defogger relay to prevent the rear window
from fogging up.
Component Function Check
INFOID:0000000003136656
1.
CHECK 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.
Is the inspection result normal?
YES
>> Rear window defogger is OK.
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000003136657
1.
CHECK FUSE
1.
Turn ignition switch OFF.
2.
Check the following.
-
20A fuse [No.14, located in fuse block (J/B)]
-
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.
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.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Repair or replace harness between rear window defogger and ground.
4.
CHECK REAR WINDOW DEFOGGER CIRCUIT 1
(+)
(–)
Condition
Voltage (V)
(Approx.)
Rear window defogger
Connector
Terminal
D108
1
Ground
Rear window defogger switch: ON
Battery voltage
Rear window defogger switch: OFF
0
Rear window defogger
Ground
Continuity
Connector
Terminal
D120
2
Existed
DEF-14
< COMPONENT DIAGNOSIS >
REAR WINDOW DEFOGGER
1.
Turn ignition switch OFF.
2.
Disconnect condenser connector.
3.
Check continuity between condenser harness connector and rear window defogger harness connector.
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.
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.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> GO TO 8.
7.
CHECK CONDENSER
Check condenser. Refer to
DEF-15, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Replace condenser.
8.
CHECK REAR WINDOW DEFOGGER RELAY
Check rear window defogger relay. Refer to
DEF-12, "Component Inspection"
Is the inspection result normal?
YES
>> Replace fuse block (J/B)
NO
>> Replace rear window defogger relay.
9.
CHECK FILAMENT
Check the filament for damage or blown.
Refer to
DEF-69, "Inspection and Repair"
Is the inspection result normal?
Condenser
Rear window defogger
Continuity
Connector
Terminal
Connector
Terminal
D104
2
D108
1
Existed
Fuse block (J/B)
Condenser
Continuity
Connector
Terminal
Connector
Terminal
B6
10G
D105
1
Existed
11G
(+)
(–)
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
11G
Rear window defogger switch: ON
Battery voltage
Rear window defogger switch: OFF
0
REAR WINDOW DEFOGGER
DEF-15
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
DEF
N
O
P
YES
>> GO TO 10.
NO
>> Repair filament.
10.
CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to
GI-38, "Intermittent Incident"
>> INSPECTION END
Component Inspection
INFOID:0000000003736286
1.
CHECK CONDENSER
1.
Check continuity between condenser connector and ground part of condenser.
2.
Check condenser terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair condenser.
Condenser
Ground part of
condenser
Continuity
Connector
Terminal
D105
1
Not existed
D104
2
Condenser
Continuity
Connector
Terminal
Connector
Terminal
D105
1
D104
2
Existed
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