Nissan Pathfinder. Manual — part 349
DLK-162
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
AUTOMATIC BACK DOOR CONTROL UNIT
AUTOMATIC BACK DOOR CONTROL UNIT : Diagnosis Procedure
INFOID:0000000009175701
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSIBLE LINK
Check that the following fusible link is not open.
Is the fusible link open?
YES
>> Replace the open fusible link after repairing the affected circuit.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect automatic back door control module connector.
3. Check voltage between automatic back door control module harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness.
3.
CHECK GROUND CIRCUIT
Check continuity between automatic back door control module harness connector and ground.
Does continuity exist?
YES
>> Inspection End.
NO
>> Repair or replace harness.
BCM
BCM : Diagnosis Procedure
INFOID:0000000009764017
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSE AND FUSIBLE LINK
Check that the following fuse and fusible link are not blown.
Fusible link No.
Signal name
N (40A)
Battery power supply
(+)
(
−)
Voltage
Automatic back door control module
Connector
Terminal
B56
25
Ground
Battery voltage
Automatic back door control module
Ground
Continuity
Connector
Terminal
B56
32
Yes
28
POWER SUPPLY AND GROUND CIRCUIT
DLK-163
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
Is the fuse or fusible link blown?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit.
NO
>> GO TO 2
2.
CHECK POWER SUPPLY CIRCUIT
1. Disconnect BCM connector M81.
2. Check voltage between BCM connector M81 terminals 131, 139 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness or connectors.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM connector M81 terminals 134, 143 and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair or replace harness or connectors.
Terminal No.
Signal name
Fuse and fusible link No.
139
Fusible link battery power
O (40A)
131
BCM battery fuse
1 (10A)
BCM
Ground
Voltage
(Approx.)
Connector
Terminal
M81
131
—
Battery voltage
139
BCM
Ground
Continuity
Connector
Terminal
M81
134
—
Yes
143
DLK-164
< DTC/CIRCUIT DIAGNOSIS >
OUTSIDE KEY ANTENNA (PASSENGER SIDE)
OUTSIDE KEY ANTENNA (PASSENGER SIDE)
Component Function Check
INFOID:0000000009175703
1.
CHECK OUTSIDE KEY ANTENNA (PASSENGER SIDE)
1. Place the Intelligent Key into the detection area of the outside key antenna (passenger side).
2. Press the door request switch (passenger side).
Does the door unlock?
YES
>> Inspection End.
NO
>> Refer to
DLK-164, "Diagnosis Procedure"
.
Diagnosis Procedure
INFOID:0000000009175704
Regarding Wiring Diagram information, refer to
.
1.
CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1
1. Turn ignition switch OFF.
2. Check signal between BCM harness connector and ground using oscilloscope.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-80, "Removal and Installation"
NO
>> GO TO 2.
2.
CHECK OUTSIDE KEY ANTENNA CIRCUIT
1. Disconnect BCM connector and outside key antenna (passenger side) connector.
2. Check continuity between BCM harness connector and outside key antenna (passenger side) harness
connector.
3. Check continuity between BCM harness connector and ground.
(+)
(–)
Condition
Signal
(Reference value)
BCM
Connector
Terminal
M80
114, 115
Ground
When the driver door
request switch is op-
erated with ignition
switch OFF
When Intelligent Key
is in the antenna de-
tection area (The dis-
tance between
Intelligent Key and
antenna: 80 cm or
less)
When Intelligent Key
is not in the antenna
detection area (The
distance between In-
telligent Key and an-
tenna: Approx. 2 m)
JMKIA5955GB
JMKIA5954GB
BCM
Outside key antenna (passenger side)
Continuity
Connector
Terminal
Connector
Terminal
M80
114
D115
1
Yes
115
2
OUTSIDE KEY ANTENNA (PASSENGER SIDE)
DLK-165
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness.
3.
CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 2
1. Replace outside key antenna (passenger side). (New antenna or other antenna)
2. Connect BCM connector and outside key antenna (passenger side) connector.
3. Check signal between BCM harness connector and ground using oscilloscope.
Is the inspection result normal?
YES
>> Replace outside key antenna (passenger side). Refer to
.
NO
>> Replace BCM. Refer to
BCS-80, "Removal and Installation"
BCM
Ground
Continuity
Connector
Terminal
M80
114
No
115
(+)
(–)
Condition
Signal
(Reference value)
BCM
Connector
Terminal
M80
114, 115
Ground
When the driver door
request switch is op-
erated with ignition
switch OFF
When Intelligent Key
is in the antenna de-
tection area (The dis-
tance between
Intelligent Key and
antenna: 80 cm or
less)
When Intelligent Key
is not in the antenna
detection area (The
distance between In-
telligent Key and an-
tenna: Approx. 2 m)
JMKIA5955GB
JMKIA5954GB
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