Nissan Tiida C11. Instruction — part 141
DEF-12
< COMPONENT DIAGNOSIS >
REAR WINDOW DEFOGGER RELAY
REAR WINDOW DEFOGGER RELAY
Description
INFOID:0000000001697551
Power is supplied to the rear window defogger with BCM control.
Component Function Check
INFOID:0000000001697552
1.
CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT
Check that an operation noise of rear window defogger relay [located in fuse block (J/B)] can be heard when
turning the rear window defogger switch ON.
Is the inspection result normal?
YES
>> Rear window defogger relay power supply circuit is OK.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000001697553
1.
CHECK REAR WINDOW DEFOGGER RELAY GROUND CIRCUIT
1.
Turn ignition switch ON.
2.
Check voltage between BCM connector and ground.
Is the inspection result normal?
YES
>> Rear window defogger power supply circuit is OK.
NO
>> GO TO 2
2.
CHECK HARNESS CONTINUITY
1.
Turn ignition switch OFF.
2.
Disconnect BCM and fuse block (J/B).
3.
Check continuity between BCM connector (A) and fuse block (J/
B) connector (B).
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK REAR WINDOW DEFOGGER RELAY
Check rear window defogger relay.
Refer to
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.
Refer to
XX-XX, "*****"
Is the inspection result normal?
YES
>>
Check the following.
Terminals
Condition of rear
window defogger
switch
Voltage (V)
(Approx.)
(+)
(–)
BCM connector
Terminal
M18
59
Ground
ON 0
OFF
Battery voltage
ALLIA0175ZZ
BCM connector
Terminal
Fuse block (J/B)
connector
Terminal
Continuity
M18 (A)
59
M4 (B)
4Q
Yes
ALLIA0176ZZ
REAR WINDOW DEFOGGER RELAY
DEF-13
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
DEF
N
O
P
• Battery power supply circuit.
• Fuse block (J/B).
NO
>> Repair or replace the malfunctioning parts.
Component Inspection
INFOID:0000000001697554
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
< COMPONENT DIAGNOSIS >
REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT
REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT
Description
INFOID:0000000001697555
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:0000000001697556
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:0000000001697557
1.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch ON.
2.
Check voltage between rear window defogger connector 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 connector 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
defogger
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
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
DEF
N
O
P
1.
Turn ignition switch OFF.
2.
Disconnect condenser and rear window defogger.
3.
Check continuity between condenser connector (A) and rear
window defogger connector (B).
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Replace condenser. Refer to
4.
CHECK HARNESS CONTINUITY 2
1.
Disconnect fuse block (J/B).
2.
Check continuity between fuse block (J/B) connector (A) and
condenser connector (B).
Is the inspection result normal?
YES
>> GO TO 6
NO
>> Replace or repair harness.
5.
CHECK FILAMENT
Check filament.
Refer to
DEF-15, "Component Inspection"
.
Is the inspection result normal?
YES
>> Refer to
XX-XX, "*****"
.
NO
>> Repair filament. Refer to
DEF-36, "Inspection and Repair"
.
6.
CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to
XX-XX, "*****"
.
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:0000000001697558
1.
CHECK FILAMENT
Check the filament for damage or open circuits.
Refer to
DEF-36, "Inspection and Repair"
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair filament. Refer to
DEF-36, "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
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