Nissan Pathfinder. Manual — part 740
POWER SUPPLY AND GROUND CIRCUIT
INL-47
< DTC/CIRCUIT DIAGNOSIS >
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DTC/CIRCUIT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
BCM
BCM : Diagnosis Procedure
INFOID:0000000009764027
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSE AND FUSIBLE LINK
Check that the following fuse and fusible link are not blown.
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.
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) : Di-
agnosis Procedure
INFOID:0000000009764028
Regarding Wiring Diagram information, refer to
.
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
INL-48
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
1.
CHECK FUSIBLE LINKS
Check that the following fusible links are not blown.
Is the fusible link blown?
YES
>> Replace the blown fusible link after repairing the affected circuit.
NO
>> GO TO 2
2.
CHECK POWER SUPPLY CIRCUIT
1. Disconnect IPDM E/R connectors E118 and E120.
2. Check voltage between IPDM E/R connectors and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness or connectors.
3.
CHECK GROUND CIRCUIT
1. Disconnect IPDM E/R connectors E119 and E121.
2. Check continuity between IPDM E/R connectors and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair or replace harness or connectors.
Terminal No.
Signal name
Fusible link No.
1
Fusible link main
E (80A)
2
Fusible link IPDM E/R
A (250A), C (80A)
3
Fusible link ignition switch
A (250A), B (100A), K (40A)
IPDM E/R
Ground
Voltage
(Approx.)
Connector
Terminal
E118
1
—
Battery voltage
2
E120
3
IPDM E/R
Ground
Continuity
Connector
Terminal
E121
7
—
Yes
E119
41
BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT
INL-49
< DTC/CIRCUIT DIAGNOSIS >
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BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT
Description
INFOID:0000000009175440
Provides the battery saver output/power supply. Also cuts the power supply when the interior room lamp bat-
tery saver is activating.
Component Function Check
INFOID:0000000009175441
1.
CHECK BATTERY SAVER OUTPUT/POWER SUPPLY FUNCTION
CONSULT
1. Turn ignition switch ON.
2. Turn each interior room lamp ON:
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Front room/map lamp assembly
-
Vanity lamps (if equipped)
-
Personal lamps 2nd row
-
Cargo lamp
3. Open the driver door to turn ON the following lamps:
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Front step lamps (if equipped)
-
Foot lamps (if equipped)
4. Select BATTERY SAVER of BCM(BATTERY SAVER) active test item.
5. While operating the test item, check that each interior room lamp turns ON/OFF.
Is the inspection result normal?
YES
>> Battery saver output/power supply circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000009175442
Regarding Wiring Diagram information, refer to
.
1.
CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OUTPUT
CONSULT
1. Turn ignition switch ON.
2. Select BATTERY SAVER of BCM(BATTERY SAVER) active test item.
3. While operating the test item, check voltage between BCM connector M81 terminal 129 and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace BCM after making sure battery saver output/power supply circuit is not shorted to volt-
BCS-80, "Removal and Installation"
2.
CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the following connectors:
-
BCM M81
-
Front step lamp LH D11(if equipped)
-
Front step lamp RH D109 (if equipped)
OFF
: Interior room lamp OFF
ON
: Interior room lamp ON
(+)
(-)
Test item
Voltage
(Approx.)
Connector
Terminal
BATTERY SAVER
M81
129
Ground
OFF
0V
ON
Battery voltage
INL-50
< DTC/CIRCUIT DIAGNOSIS >
BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT
-
Foot lamp LH M99 (if equipped)
-
Foot lamp RH M100 (if equipped)
-
Front room/map lamp assembly R107
-
Vanity lamp LH R103 (if equipped)
-
Vanity lamp RH R102 (if equipped)
-
Cargo lamp R104
-
Personal lamps 2nd row R106
3. Check continuity between BCM connector M81 terminal 129 and interior room lamp connector terminal in
question.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connector.
3.
CHECK BATTERY SAVER OUTPUT/POWER SUPPLY SHORT CIRCUIT
Check continuity between BCM connector M81 terminal 129 and ground.
Is the inspection result normal?
YES
>> Check that each interior room lamp has no internal short circuit.
NO
>> Repair or replace harness or connector.
BCM
Each interior room lamp
Continuity
Connector
Terminal
Connector
Terminal
M81
129
Front step lamp LH (if equipped)
D11
1
Yes
Front step lamp RH (if equipped)
D109
1
Foot lamp LH (if equipped)
M99
1
Foot lamp RH (if equipped)
M100
1
Front room/map lamp assembly
R107
1
Vanity lamp LH (if equipped)
R103
1
Vanity lamp RH (if equipped)
R102
1
Cargo lamp
R104
2
Personal lamps 2nd row
R106
2
Connector
Terminal
—
Continuity
M81
129
Ground
No
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