Nissan Titan A60. Manual — part 223
REAR WINDOW DEFOGGER SYSTEM
DEF-13
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
DEF
N
O
P
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and rear window defogger cut-off relay.
3. Check continuity between IPDM E/R connector E124 (B) termi-
nal 60 and rear window defogger cut-off relay connector M187
(A) terminals 2 and 3.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Repair or replace harness.
4.
INSPECTION OF REAR POWER WINDOW DEFOGGER CUT-OFF RELAY
Check continuity between rear window defogger cut-off relay termi-
nals 3 and 5.
Is the inspection result normal?
YES
>> GO TO 5
NO
>> Replace rear window defogger cut-out relay.
5.
CHECK REAR WINDOW DEFOGGER CUT-OFF RELAY GROUND CIRCUIT
1. Place rear power drop glass in the closed (UP) position.
2. Check continuity between rear window defogger cut-off relay
connector M187 terminal 1 and ground.
Is the inspection result normal?
YES
>> GO TO 7
NO
>> GO TO 6
6.
CHECK REAR POWER DROP GLASS MOTOR (DEF CUT-OFF SWITCH)
1. Disconnect rear power drop glass motor (def cut-off switch).
2. Check continuity between rear power drop glass motor (def cut-
off switch) terminals 2 and 3.
Is the inspection result normal?
YES
>> Repair or replace harness.
NO
>> Replace rear power drop glass motor (def cut-off switch).
7.
CHECK POWER SUPPLY CIRCUIT
IPDM E/R
connector
Terminal
Rear window defogger
cut-off relay connector
Terminal
Continuity
B: E124
60
A: M187
2
Yes
3
ALLIA0884ZZ
Condition
Continuity
12V direct current supply between
terminals 1 and 2
Yes
No current supply
No
SEF145X
1 - Ground
: Continuity should exist.
ALLIA0885ZZ
Terminal
Rear power drop
glass position
Continuity
2
3
Closed (UP)
Yes
Open (DOWN)
more than 18 mm
No
LIIA1989E
DEF-14
< DTC/CIRCUIT DIAGNOSIS >
REAR WINDOW DEFOGGER SYSTEM
1. Turn ignition switch ON.
2. Connect all disconnected connectors and rear window defogger
cut-off relay.
3. Check voltage between rear window defogger connector and
ground.
Is the inspection result normal?
YES
>> GO TO 8
NO
>> Repair or replace harness.
8.
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 9
NO
>> Repair or replace harness.
9.
CHECK FILAMENT
Check filament.
DEF-14, "Component Inspection"
Is the inspection result normal?
YES
>> Refer to
GI-39, "Intermittent Incident"
.
NO
>> Repair filament. Refer to
.
Component Inspection
INFOID:0000000006164644
1.
CHECK FILAMENT
Check the filament for damage or open circuits.
.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair filament. Refer to
.
Terminals
Condition of rear
window
defogger switch
Voltage (V)
(Approx.)
(+)
(–)
Rear window
defogger
connector
Terminal
B78
1
Ground
ON
Battery voltage
OFF
0
ALLIA0177ZZ
Rear window defogger connector
Terminal
Ground
Continuity
B81
2
Yes
ALLIA0178ZZ
DOOR MIRROR DEFOGGER LH
DEF-15
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
DEF
N
O
P
DOOR MIRROR DEFOGGER LH
Description
INFOID:0000000006164645
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:0000000006164646
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:0000000006164647
Regarding Wiring Diagram information, refer to
.
1.
CHECK POWER SUPPLY
Check if the following fuse in the IPDM E/R is 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 DOOR MIRROR DEFOGGER 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 (with automatic drive positioner)
YES
>> GO TO 5 (without automatic drive positioner)
NO
>> Replace IPDM E/R. Refer to
PCS-28, "Removal and Installation of IPDM E/R"
.
3.
CHECK DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT 2
1. Turn ignition switch OFF.
2. Disconnect door mirror LH.
3. Turn ignition switch ON.
4. Check voltage between door mirror LH connector and ground.
COMPONENT PARTS
AMPERE
FUSE NO.
IPDM E/R
15A
43
Connector
Terminal
Condition
Voltage (V)
(Approx.)
(+)
(-)
E120
23
Ground
Rear window defogger
switch ON
Battery voltage
Rear window defogger
switch OFF
0
LIIA2049E
Connector
Terminal
Condition
Voltage (V)
(Approx.)
(+)
(-)
DEF-16
< DTC/CIRCUIT DIAGNOSIS >
DOOR MIRROR DEFOGGER LH
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Repair or replace harness.
4.
CHECK DOOR MIRROR DEFOGGER GROUND CIRCUIT
Check continuity between door mirror LH connector D4 terminal 11
and ground.
Is the inspection result normal?
YES
>> GO TO 7
NO
>> Repair or replace harness.
5.
CHECK DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT 2
1. Turn ignition switch OFF.
2. Disconnect door mirror LH.
3. Turn ignition switch ON.
4. Check voltage between door mirror LH connector and ground.
Is the inspection result normal?
YES
>> GO TO 6
NO
>> Repair or replace harness.
6.
CHECK DOOR MIRROR DEFOGGER GROUND CIRCUIT
Check continuity between door mirror LH connector D6 terminal 6
and ground.
Is the inspection result normal?
YES
>> GO TO 7
NO
>> Repair or replace harness.
7.
CHECK DOOR MIRROR DEFOGGER LH
Check door mirror defogger LH.
DEF-17, "Component Inspection (With Automatic Drive Positioner)"
.
DEF-17, "Component Inspection (Without Automatic Drive Positioner)"
Is the inspection result normal?
YES
>> GO TO 8
NO
>> Replace door mirror. Refer to
MIR-15, "Door Mirror Assembly"
.
D4
10
Ground
Rear window defogger
switch ON
Battery voltage
Rear window defogger
switch OFF
0
11 - Ground
: Continuity should exist.
LIIA1454E
Connector
Terminal
Condition
Voltage (V)
(Approx.)
(+)
(-)
D6
4
Ground
Rear window defogger
switch ON
Battery voltage
Rear window defogger
switch OFF
0
6 - Ground
: Continuity should exist.
ALLIA0888ZZ
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