Nissan Teana J32. Instruction — part 825
MWI
POWER SUPPLY AND GROUND CIRCUIT
MWI-43
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
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J
K
L
M
B
A
O
P
Is the fuse fusing?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is
blown.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BCM connectors.
3.
Check voltage between BCM harness connector and ground.
Is the measurement value normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) : Di-
agnosis Procedure
INFOID:0000000003900506
1.
CHECK FUSES AND FUSIBLE LINK
Check that the following IPDM E/R fuses or fusible links are not blown.
Is the fuse fusing?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is
blown.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
Signal name
Fuse and fusible link No.
Battery power supply
I
10
Terminals
Voltage
(Approx.)
(+)
(
−
)
BCM
Ground
Connector
Terminal
M118
1
Battery voltage
M119
11
BCM
Ground
Continuity
Connector
Terminal
M119
13
Existed
Signal name
Fuses and fusible link No.
Battery power supply
E
50
51
MWI-44
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
2.
Disconnect IPDM E/R connector.
3.
Check voltage between IPDM E/R harness connector and ground.
Is the measurement value normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK GROUND CIRCUIT
Check continuity between IPDM E/R harness connectors and ground.
Does continuity exist?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
Terminals
Voltage
(Approx.)
(+)
(
−
)
IPDM E/R
Connector
Terminal
Ground
E9
1
Battery voltage
IPDM E/R
Ground
Continuity
Connector
Terminal
E10
12
Existed
E11
41
MWI
FUEL LEVEL SENSOR SIGNAL CIRCUIT
MWI-45
< COMPONENT DIAGNOSIS >
C
D
E
F
G
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M
B
A
O
P
FUEL LEVEL SENSOR SIGNAL CIRCUIT
Description
INFOID:0000000003792570
The fuel level sensor unit and fuel pump detect the fuel level in the fuel tank and transmit the fuel gauge signal
to the combination meter.
Component Function Check
INFOID:0000000003792571
1.
CHECK COMBINATION METER OUTPUT SIGNAL
Select the “Data Monitor” for the “METER/M&A” and compare the “FUEL METER” monitor value with the fuel
gauge reading on the combination meter.
Does monitor value match fuel gauge reading?
YES
>> INSPECTION END
NO
>> Replace combination meter.
Diagnosis Procedure
INFOID:0000000003792572
1.
CHECK COMBINATION METER INPUT SIGNAL
1.
Turn ignition switch ON.
2.
Check voltage between combination meter harness connector terminal and ground.
Does it match fuel gauge reading?
YES
>> GO TO 2.
NO
>> Replace the combination meter.
2.
CHECK FUEL LEVEL SENSOR CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect combination meter connector and fuel level sensor unit and fuel pump connector.
3.
Check continuity between combination meter harness connector terminal and fuel level sensor unit and
fuel pump harness connector terminal.
Fuel gauge pointer
Reference value of data monitor [lit.]
Full
Approx. 64.6
Three quarters
Approx. 53.5
Half
Approx. 36.0
A quarter
Approx. 18.5
Empty
Approx. 8.0
Terminals
Voltage
(Approx.)
(+)
(-)
Combination meter
Ground
Terminal
Connector
M34
34
JPNIA0740ZZ
MWI-46
< COMPONENT DIAGNOSIS >
FUEL LEVEL SENSOR SIGNAL CIRCUIT
4.
Check continuity between combination meter harness connector terminal and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK FUEL LEVEL SENSOR GROUND CIRCUIT
Check continuity between fuel level sensor unit and fuel pump harness connector terminal and combination
meter harness connector terminal.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000003792573
1.
REMOVE FUEL LEVEL SENSOR UNIT
Remove the fuel level sensor unit. Refer to
FL-5, "Removal and Installation"
.
>> GO TO 2.
2.
CHECK FUEL LEVEL SENSOR UNIT
Check the resistance between fuel level sensor unit.
* : When float rod is in contact with stopper.
Terminals
Continuity
(+)
(-)
Combination meter
Fuel level sensor unit and fuel pump
Connector
Terminal
Connector
Terminal
M34
34
B40
2
Existed
Terminals
Continuity
(+)
(-)
Combination meter
Ground
Connector
Terminal
M34
34
Not existed
Terminals
Continuity
(+)
(-)
Fuel level sensor unit and fuel pump
Combination meter
Connector
Terminal
Connector
Terminal
B40
5
M34
24
Existed
Terminals
Condition
Resistance
(
Ω
)
Height
[mm (in)]
Fuel level sensor unit
(+)
(-)
Con-
nector
Termi-
nal
Con-
nector
Termi-
nal
B40
2
B40
5
Full (A)
*
6
167.8
(6.61)
Empty (B)
*
80
35.9
(1.413)
JPNIA1018ZZ
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