Nissan Cube. Instruction — part 679
MWI-40
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
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 the ignition switch OFF.
2.
Disconnect IPDM E/R connector.
3.
Check voltage between IPDM E/R harness connector and the ground.
Is the measurement value normal?
YES
>> GO TO 3.
NO
>> Repair the harness or connector.
3.
CHECK GROUND CIRCUIT
Check continuity between IPDM E/R harness connectors and the ground.
Does continuity exist?
YES
>> INSPECTION END
NO
>> Repair the harness or connector.
IPDM E/R (WITHOUT INTELLIGENT KEY SYSTEM)
IPDM E/R (WITHOUT INTELLIGENT KEY SYSTEM) : Diagnosis Procedure
INFOID:0000000009945709
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.
Signal name
Fuses and fusible link No.
Battery power supply
C
D
J
Terminals
Voltage
(Approx.)
(+)
(
−
)
IPDM E/R
Connector
Terminal
Ground
E9
1
Battery voltage
2
E10
8
IPDM E/R
Ground
Continuity
Connector
Terminal
E11
9
Existed
E12
19
Signal name
Fuses and fusible link No.
Battery power supply
C
D
J
MWI
POWER SUPPLY AND GROUND CIRCUIT
MWI-41
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect IPDM E/R connector.
3.
Check voltage between IPDM E/R harness connector and the ground.
Is the measurement value normal?
YES
>> GO TO 3.
NO
>> Repair the harness or connector.
3.
CHECK IGNITION POWER SUPPLY CIRCUIT
1.
Turn the ignition switch ON.
2.
Check voltage between IPDM E/R harness connector and the ground.
Is the measurement value normal?
YES
>> GO TO 4.
NO
>> Repair the harness or connector.
4.
CHECK GROUND CIRCUIT
1.
Turn the ignition switch OFF.
2.
Check continuity between IPDM E/R harness connectors and the ground.
Does continuity exist?
YES
>> INSPECTION END
NO
>> Repair the harness or connector.
Terminals
Voltage
(Approx.)
(+)
(
−
)
IPDM E/R
Connector
Terminal
Ground
E9
1
Battery voltage
2
E10
8
Terminals
Voltage
(Approx.)
(+)
(
−
)
IPDM E/R
Ground
Connector
Terminal
E12
18
Battery voltage
IPDM E/R
Ground
Continuity
Connector
Terminal
E11
9
Existed
E12
19
MWI-42
< DTC/CIRCUIT DIAGNOSIS >
FUEL LEVEL SENSOR SIGNAL CIRCUIT
FUEL LEVEL SENSOR SIGNAL CIRCUIT
Description
INFOID:0000000009945710
The fuel level sensor unit and fuel pump detect the fuel level in the fuel tank and transmit the fuel level sensor
signal to the combination meter.
Component Function Check
INFOID:0000000009945711
1.
PERFORM COMPONENT FUNCTION CHECK (1)
1.
Turn ignition switch OFF.
2.
Disconnect fuel level sensor unit and fuel pump connector.
3.
Connect variable resistor between harness connector terminals located on the vehicle side of the fuel
level sensor unit and fuel pump.
4.
Set variable resistor according to the resistance value shown in the following table and turn ignition switch
ON.
NOTE:
For information on the relationship between the number of lighting segments of fuel gauge and resistance
of fuel level sensor signal circuit, refer to
MWI-24, "INFORMATION DISPLAY : System Description"
*: Reference resistance values used when the combination meter judges the number of lighting segments
of the fuel gauge.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Refer to
2.
PERFORM COMPONENT FUNCTION CHECK (2)
Check the fuel level sensor unit and fuel pump. Refer to
MWI-43, "Component Inspection"
.
Does monitor value match fuel gauge reading?
Fuel level sensor unit and fuel pump
Connector
Terminals
B40
2
5
Resistance (
Ω
)
*
(Approx.)
Fuel gauge indication position
Less than 6.0
16/16
8.8
15/16
12.5
14/16
15.0
13/16
17.5
12/16
21.0
11/16
24.5
10/16
28.5
9/16
32.5
8/16
37.5
7/16
42.5
6/16
48.8
5/16
55.0
4/16
61.8
3/16
68.5
2/16
More than 75.0
1/16
MWI
FUEL LEVEL SENSOR SIGNAL CIRCUIT
MWI-43
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
YES
>> INSPECTION END
NO
>> Replace combination meter. Refer to
MWI-93, "Removal and Installation"
Diagnosis Procedure
INFOID:0000000009945712
1.
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 and fuel level sensor unit and fuel pump
harness connector.
4.
Check continuity between combination meter harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK FUEL LEVEL SENSOR GROUND CIRCUIT
Check continuity between fuel level sensor unit and fuel pump harness connector and combination meter har-
ness connector.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace combination meter. Refer to
MWI-93, "Removal and Installation"
Component Inspection
INFOID:0000000009945713
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 and fuel pump.
Combination meter
Fuel level sensor unit and fuel
pump
Continuity
Connector
Terminal
Connector
Terminal
M34
6
B40
2
Existed
Combination meter
Ground
Continuity
Connector
Terminal
M34
6
Not existed
Fuel level sensor unit and fuel
pump
Combination meter
Continuity
Connector
Terminal
Connector
Terminal
B40
5
M34
24
Existed
Terminals
Condition
Resistance (
Ω
)
(Approx.)
Height [mm (in)]
Fuel level sensor unit
2
5
Full
*
(A)
5.0
165.7 (6.5)
Empty
*
(B)
81.5
21.1 (0.83)
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