Nissan Frontier. Manual — part 231
DEF-12
< DTC/CIRCUIT DIAGNOSIS >
REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT
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.
DEF-12, "Component Inspection"
Is the inspection result normal?
YES
>> Refer to
GI-42, "Intermittent Incident"
.
NO
>> Repair filament. Refer to
.
5.
CHECK INTERMITTENT INCIDENT
Check intermittent incident.
GI-42, "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:0000000009479599
1.
CHECK FILAMENT
Check the filament for damage or open circuits.
.
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
REAR WINDOW DEFOGGER FEEDBACK SIGNAL
DEF-13
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
DEF
N
O
P
REAR WINDOW DEFOGGER FEEDBACK SIGNAL
Description
INFOID:0000000009479600
Turns the indicator lamp in the rear window defogger switch ON when operating the rear window defogger.
Component Function Check
INFOID:0000000009479601
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 feedback signal function is OK.
NO
>> Refer to
DEF-13, "Diagnosis Procedure (Manual A/C)"
Diagnosis Procedure (Manual A/C)
INFOID:0000000009479602
Regarding Wiring Diagram information, refer to
.
1.
CHECK REAR WINDOW DEFOGGER SWITCH INDICATOR CIRCUIT
Check voltage between front air control harness connector 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.
Terminals
Condition of rear window
defogger switch
Voltage (V)
(Approx.)
(+)
(–)
Front air control connec-
tor
Terminal
M49
(with manual A/C type 2)
25
Ground
ON Battery
voltage
OFF
0
DEF-14
< DTC/CIRCUIT DIAGNOSIS >
DOOR MIRROR DEFOGGER LH
DOOR MIRROR DEFOGGER LH
Description
INFOID:0000000010246676
Heats the heating wire with the power supply from the heated mirrorr relay to prevent the door mirror from fog-
ging up.
Component Function Check
INFOID:0000000010246677
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:0000000010246678
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
Check voltage between IPDM E/R harness connector E120 terminal
23 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 DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT
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
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
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 1 and ground.
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 harness connector D4 ter-
minal 6 and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace harness.
5.
CHECK DOOR MIRROR DEFOGGER LH
Check door mirror defogger LH.
DEF-15, "Component Inspection"
.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-42, "Intermittent Incident"
.
NO
>> Replace door mirror. Refer to
MIR-23, "Door Mirror Assembly"
.
Component Inspection
INFOID:0000000010246679
1.
CHECK DOOR MIRROR DEFOGGER
Check continuity between door mirror LH terminals 1 and 6.
Is the inspection result normal?
YES
>> Check the condition of the harness and the connector.
NO
>> Replace malfunctioning door mirror LH. Refer to
.
Connector
Terminal
Condition
Voltage (V)
(Approx.)
(+)
(-)
D4
1
Ground
Rear window defogger
switch ON
Battery voltage
Rear window defogger
switch OFF
0
LIIA2050E
6 - Ground
: Continuity should exist.
LIIA2037E
1 - 6
: Continuity should exist.
AWLIA1760ZZ
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