Nissan Maxima. Manual — part 307
REAR WINDOW DEFOGGER RELAY
DEF-13
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
DEF
N
O
P
3.
CHECK REAR WINDOW DEFOGGER RELAY
Check rear window defogger relay.
DEF-13, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Replace rear window defogger relay.
4.
CHECK INTERMITTENT INCIDENT
Check intermittent incident.
GI-41, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Check the following.
• Battery power supply circuit.
• Fuse block (J/B).
NO
>> Repair or replace the malfunctioning parts.
Component Inspection
INFOID:0000000010045585
1.
CHECK REAR WINDOW DEFOGGER RELAY
Check rear window defogger relay.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace rear window defogger relay.
Terminal
Condition
Continuity
Rear window
defogger relay
3
5
12V direct current supply between termi-
nals 1 and 2.
Yes
No current supply
No
SEF497Y
DEF-14
< DTC/CIRCUIT DIAGNOSIS >
REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT
REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT
Description
INFOID:0000000010045586
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:0000000010045587
1.
CHECK REAR WINDOW DEFOGGER
Check that the heating wire of rear window defogger is heated when turning the rear window defogger switch
ON.
Is the inspection result normal?
YES
>> Rear window defogger is OK.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000010045588
Regarding Wiring Diagram information, refer to
.
1.
CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between rear window defogger harness connec-
tor B53 terminal 1 and ground.
Is the inspection result normal?
YES
>> GO TO 2
NO
>> GO TO 3
2.
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear window defogger.
3. Check continuity between rear window defogger harness con-
nector B54 terminal 2 and ground.
Is the inspection result normal?
YES
>> GO TO 5
NO
>> Repair or replace harness.
3.
CHECK HARNESS CONTINUITY 1
Terminals
Condition of rear
window
defogger switch
Voltage (V)
(Approx.)
(+)
(–)
Rear window de-
fogger
connector
Terminal
B53
1
Ground
ON
Battery voltage
OFF
0
ALLIA0177ZZ
Rear window defogger connector
Terminal
Ground
Continuity
B54
2
Yes
ALLIA0178ZZ
REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT
DEF-15
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
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J
K
M
A
B
DEF
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P
1. Turn ignition switch OFF.
2. Disconnect condenser and rear window defogger.
3. Check continuity between condenser harness connector B52
(A) terminal 1 and rear window defogger harness connector B53
(B) terminal 1.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Replace condenser. Refer to
DEF-66, "Removal and Installation"
.
4.
CHECK HARNESS CONTINUITY 2
1. Disconnect fuse block (J/B).
2. Check continuity between fuse block (J/B) harness connector
B4 (A) terminal 10T, 11T and condenser harness connector B52
(B) terminal 1.
Is the inspection result normal?
YES
>> GO TO 6
NO
>> Replace or repair harness.
5.
CHECK FILAMENT
Check filament.
DEF-15, "Component Inspection"
.
Is the inspection result normal?
YES
>> Refer to
GI-41, "Intermittent Incident"
.
NO
>> Repair filament. Refer to
DEF-64, "Inspection and Repair"
.
6.
CHECK INTERMITTENT INCIDENT
Check intermittent incident.
GI-41, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Check the following.
• Battery power supply circuit.
• Fuse block (J/B).
NO
>> Repair or replace the malfunctioning parts.
Component Inspection
INFOID:0000000010045589
1.
CHECK FILAMENT
Check the filament for damage or open circuits.
DEF-64, "Inspection and Repair"
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair filament. Refer to
DEF-64, "Inspection and Repair"
.
Condenser
connector
Terminal
Rear window defogger
connector
Terminal
Continuity
B52 (A)
1
B53 (B)
1
Yes
ALLIA0179ZZ
Fuse block (J/B)
connector
Terminal
Condenser
connector
Terminal
Continuity
B4 (A)
10T
B52 (B)
1
Yes
11T
ALLIA0180ZZ
DEF-16
< DTC/CIRCUIT DIAGNOSIS >
DRIVER SIDE DOOR MIRROR DEFOGGER
DRIVER SIDE DOOR MIRROR DEFOGGER
Description
INFOID:0000000010045590
Heats the heating wire with the power supply from the rear window defogger relay to prevent the door mirror
from fogging up.
Component Function Check
INFOID:0000000010045591
1.
CHECK DOOR MIRROR DEFOGGER LH
Check that heating wire of door mirror defogger LH is heated when turning the rear window defogger switch
ON.
Is the inspection result normal?
YES
>> Door mirror defogger is OK.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000010045592
Regarding Wiring Diagram information, refer to
.
1.
CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door mirror LH.
3. Turn ignition switch ON.
4. Check voltage between door mirror LH harness connector D4
terminal 5 and ground.
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Repair or replace harness.
2.
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between door mirror LH harness connector D4
terminal 13 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK DOOR MIRROR DEFOGGER LH
Check door mirror defogger LH.
DEF-17, "Component Inspection"
Is the inspection result normal?
Terminals
Condition of
rear window
defogger
switch
Voltage (V)
(Approx.)
(+)
(–)
Door mirror LH
connector
Terminal
D4
5
Ground
ON
Battery voltage
OFF
0
ALLIA0917ZZ
Door mirror LH connector
Terminal
Ground
Continuity
D4
13
Yes
ALLIA0918ZZ
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