Nissan Titan A60. Instruction — part 222
REAR WINDOW DEFOGGER SWITCH
DEF-9
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
DEF
N
O
P
DTC/CIRCUIT DIAGNOSIS
REAR WINDOW DEFOGGER SWITCH
Description
INFOID:0000000006164633
• 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 (2 Control Dial System or Auto A/C)
INFOID:0000000006164634
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-9, "Diagnosis Procedure (2 Control Dial System or Auto A/C)"
Component Function Check (3 Control Dial System Without Auto A/C)
INFOID:0000000006164635
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-10, "Diagnosis Procedure (3 Control Dial System Without Auto A/C)"
Diagnosis Procedure (2 Control Dial System or Auto A/C)
INFOID:0000000006164636
Regarding Wiring Diagram information, refer to
.
1.
CHECK FRONT AIR CONTROL (REAR WINDOW DEFOGGER SWITCH) CIRCUIT
Operate the rear window defogger switch.
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 connector (A) and front air con-
trol connector (B).
4. Check continuity between BCM connector (A) and ground.
Is the inspection result normal?
YES
>> Replace front air control. Refer to
VTL-8, "Removal and Installation"
.
NO
>> Repair or replace harness.
BCM connector
Terminal
Front air control con-
nector
Terminal
Continuity
M18 (A)
9
M49 or M180 (B)
16
Yes
BCM connector
Terminal
Ground
Continuity
M18 (A)
9
No
ALLIA0561ZZ
DEF-10
< DTC/CIRCUIT DIAGNOSIS >
REAR WINDOW DEFOGGER SWITCH
Diagnosis Procedure (3 Control Dial System Without Auto A/C)
INFOID:0000000006164637
Regarding Wiring Diagram information, refer to
.
1.
CHECK FRONT AIR CONTROL (REAR WINDOW DEFOGGER SWITCH) CIRCUIT
Operate the rear window defogger switch.
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 connector (A) and front air con-
trol connector (B).
4. Check continuity between BCM connector (A) and ground.
Is the inspection result normal?
YES
>> Replace front air control. Refer to
VTL-8, "Removal and Installation"
.
NO
>> Repair or replace harness.
BCM connector
Terminal
Front air control con-
nector
Terminal
Continuity
M18 (A)
9
M176 (B)
11
Yes
BCM connector
Terminal
Ground
Continuity
M18 (A)
9
No
ALLIA0564ZZ
REAR WINDOW DEFOGGER RELAY
DEF-11
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
DEF
N
O
P
REAR WINDOW DEFOGGER RELAY
Description
INFOID:0000000006164638
Power is supplied to the rear window defogger with BCM control.
Component Function Check
INFOID:0000000006164639
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:0000000006164640
Regarding Wiring Diagram information, refer to
.
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 connector and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Replace IPDM E/R. Refer to
PCS-28, "Removal and Installation of IPDM E/R"
.
3.
CHECK INTERMITTENT INCIDENT
Check intermittent incident.
GI-39, "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-12
< DTC/CIRCUIT DIAGNOSIS >
REAR WINDOW DEFOGGER SYSTEM
REAR WINDOW DEFOGGER SYSTEM
Description
INFOID:0000000006164641
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:0000000006164642
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:0000000006164643
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSES
Check if any of the following fuses in 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 connector and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Replace IPDM E/R. Refer to
PCS-28, "Removal and Installation of IPDM E/R"
.
3.
CHECK REAR WINDOW DEFOGGER POWER CIRCUIT HARNESS CONTINUITY
COMPONENT PARTS
AMPERE
FUSE NO.
IPDM E/R
15A
46
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
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