Nissan Frontier D40. Instruction — part 201
DEF-8
< COMPONENT DIAGNOSIS >
REAR WINDOW DEFOGGER SWITCH
COMPONENT DIAGNOSIS
REAR WINDOW DEFOGGER SWITCH
Description
INFOID:0000000005272647
• The rear window defogger is operated by turning the rear window defogger switch ON.
• Turns the indicator lamp in the rear window defogger switch ON when operating the rear window defogger.
Component Function Check
INFOID:0000000005272648
1.
CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION
Check that the indicator lamp of rear window defogger illuminates with rear window defogger switch ON.
Is the inspection result normal?
YES
>> Rear window defogger switch function is OK.
NO
>> Refer to
DEF-8, "Diagnosis Procedure Front Air Control"
Diagnosis Procedure Front Air Control
INFOID:0000000005272649
Regarding Wiring Diagram information, refer to
DEF-27, "Wiring Diagram - Defogger Control System"
.
1.
CHECK FRONT AIR CONTROL (REAR WINDOW DEFOGGER SWITCH) CIRCUIT
Does rear window defogger switch operate normally?
Is the inspection result normal?
YES
>> Inspection End.
NO
>> GO TO 2
2.
CHECK HARNESS CONTINUITY
1.
Turn ignition switch OFF.
2.
Disconnect BCM and front air control.
3.
Check continuity between BCM harness connector M18 (A) ter-
minal 9 and front air control harness connector M50 (B) terminal
16.
4.
Check continuity between BCM harness connector M18 (A) ter-
minal 9 and ground.
Is the inspection result normal?
YES
>> Replace front air control. Refer to
VTL-7, "Removal and Installation"
.
NO
>> Repair or replace harness as necessary.
BCM connector
Terminal
Front air control con-
nector
Terminal
Continuity
M18
9
M50
16
Yes
BCM connector
Terminal
Ground
Continuity
M18
9
No
AWLIA1685ZZ
REAR WINDOW DEFOGGER RELAY
DEF-9
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
DEF
N
O
P
REAR WINDOW DEFOGGER RELAY
Description
INFOID:0000000005272650
Power is supplied to the rear window defogger with BCM control.
Component Function Check
INFOID:0000000005272651
1.
CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT
Check that an operation noise of rear window defogger relay (located in IPDM E/R) 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:0000000005272652
Regarding Wiring Diagram information, refer to
DEF-27, "Wiring Diagram - Defogger Control System"
.
1.
CHECK FUSES
Check if any of the following fuses in the IPDM E/R are blown.
Is the inspection result normal?
YES
>> GO TO 2
NO
>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT
1.
Turn ignition switch ON.
2.
Check voltage between IPDM E/R harness connector E124 ter-
minal 60 and ground.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-33, "Removal and Installation of IPDM E/R"
.
NO
>> GO TO 3
3.
CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to
GI-46, "Intermittent Incident"
.
Is the inspection result normal?
YES
>>
Check the following.
• Battery power supply circuit
• IPDM E/R
NO
>> Repair or replace the malfunctioning parts.
COMPONENT PARTS
AMPERE
FUSE NO.
IPDM E/R
15A
46
IPDM E/R
15A
47
Terminals
Condition of rear
window defogger
switch
Voltage (V)
(Approx.)
(+)
(–)
IPDM E/R con-
nector
Terminal
E124
60
Ground
ON Battery
voltage
OFF
0
LIIA2190E
DEF-10
< COMPONENT DIAGNOSIS >
REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT
REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT
Description
INFOID:0000000005272653
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:0000000005272654
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:0000000005272655
Regarding Wiring Diagram information, refer to
DEF-27, "Wiring Diagram - Defogger Control System"
.
1.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch ON.
2.
Check voltage between rear window defogger harness connec-
tor B165 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 B210 terminal 2 and ground.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Repair or replace harness as necessary.
3.
CHECK HARNESS CONTINUITY
Terminals
Condition of rear
window
defogger switch
Voltage (V)
(Approx.)
(+)
(–)
Rear window
defogger
connector
Terminal
B165
1
Ground
ON
Battery voltage
OFF
0
ALLIA0177ZZ
Rear window defogger connector
Terminal
Ground
Continuity
B210
2
Yes
ALLIA0178ZZ
REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT
DEF-11
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
DEF
N
O
P
1.
Disconnect IPDM E/R.
2.
Check continuity between rear window defogger harness con-
nector B165 (A) terminal 1 and IPDM E/R harness connector
E124 (B) terminal 60.
3.
Check continuity between rear window defogger harness con-
nector B165 (A) terminal 1 and ground.
Is the inspection result normal?
YES
>> GO TO 5
NO
>> Replace or repair harness.
4.
CHECK FILAMENT
Check filament.
Refer to
DEF-11, "Component Inspection"
.
Is the inspection result normal?
YES
>> Refer to
GI-46, "Intermittent Incident"
.
NO
>> Repair filament. Refer to
.
5.
CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to
GI-46, "Intermittent Incident"
.
Is the inspection result normal?
YES
>>
Check the following.
• Battery power supply circuit
• IPDM E/R
NO
>> Repair or replace the malfunctioning parts.
Component Inspection
INFOID:0000000005272656
1.
CHECK FILAMENT
Check the filament for damage or open circuits.
Refer to
.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair filament. Refer to
.
Rear window defog-
ger connector
Terminal
IPDM E/R
connector
Terminal
Continuity
B165 (A)
1
E124 (B)
60
Yes
Rear window defog-
ger connector
Terminal
Ground
Continuity
B165 (A)
1
No
LIIA2644E
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