Nissan Versa Note. Manual — part 592
MWI
POWER SUPPLY AND GROUND CIRCUIT
MWI-43
< DTC/CIRCUIT DIAGNOSIS >
C
D
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L
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Procedure
INFOID:0000000009693741
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSES AND FUSIBLE LINK
Check that the following fuses and fusible link are not blown.
Is the fuse 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 M99.
2. Check voltage between BCM connector M99 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM connector M99 and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair harness or connector.
BCM (BODY CONTROL SYSTEM) (WITHOUT INTELLIGENT KEY SYSTEM)
BCM (BODY CONTROL SYSTEM) (WITHOUT INTELLIGENT KEY SYSTEM) : Diag-
nosis Procedure
INFOID:0000000009693742
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSES AND FUSIBLE LINK
Check that the following fuses and fusible link are not blown.
Terminal No.
Signal name
Fuses and fusible link No.
57
Battery power supply
12 (10A)
70
G (40A)
BCM
Ground
Voltage
Connector
Terminal
M99
57
—
Battery voltage
70
BCM
Ground
Continuity
Connector
Terminal
M99
67
—
Yes
MWI-44
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
Is the fuse blown?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connectors.
3. Check voltage between BCM connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM connector and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair harness or connector.
Terminal No.
Signal name
Fuses and fusible link No.
37
Battery power supply
8 (10A)
42
12 (10A)
50
G (40A)
11
Ignition switch ACC or ON
18 (10A)
38
Ignition switch ON or START
2 (10A)
BCM
Ground
Ignition switch position
Connector
Terminal
—
OFF
ACC
ON
M18
11
0 V
Battery voltage
Battery voltage
37
Battery voltage
38
0 V
0 V
M19
42
Battery voltage
Battery voltage
50
BCM
Ground
Continuity
Connector
Terminal
M19
55
—
Yes
MWI
FUEL LEVEL SENSOR SIGNAL CIRCUIT
MWI-45
< DTC/CIRCUIT DIAGNOSIS >
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FUEL LEVEL SENSOR SIGNAL CIRCUIT
Description
INFOID:0000000009654125
The fuel level sensor unit and fuel pump detects the approximate fuel level in the fuel tank and transmits the
fuel level signal to the combination meter.
Component Function Check
INFOID:0000000009654126
1.
COMBINATION METER INPUT SIGNAL
1. Select METER/M&A on CONSULT.
2. Using FUEL METER of DATA MONITOR, compare the DATA MONITOR value with the fuel gauge posi-
tion.
Does monitor value match fuel gauge reading?
YES
>> Inspection End.
NO
>> Replace combination meter. Refer to
MWI-54, "Removal and Installation"
Diagnosis Procedure
INFOID:0000000009654127
Regarding Wiring Diagram information, refer to
.
1.
CHECK HARNESS CONNECTOR
1. Turn ignition switch OFF.
2. Check combination meter and fuel level sensor unit terminals (meter-side and harness-side) for poor con-
nection.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace terminals or connectors.
2.
CHECK FUEL LEVEL SENSOR UNIT CIRCUIT
1. Disconnect combination meter harness connector M24 and fuel level sensor unit and fuel pump harness
connector B44.
2. Check continuity between combination meter harness connector M24 terminal 6 and fuel level sensor unit
and fuel pump harness connector B44 terminal 2.
3. Check continuity between fuel level sensor unit and fuel pump harness connector B44 terminal 2 and
ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
Fuel gauge indication position
Reference value of data monitor [L]
1
Approx. 39.8
3/4
Approx. 31.2
1/2
Approx. 20.8
1/4
Approx. 10.8
0
Approx. 2.9
Connector
Terminal
Connector
Terminal
Continuity
M24
6
B44
2
Yes
Connector
Terminal
Ground
Continuity
B44
2
No
MWI-46
< DTC/CIRCUIT DIAGNOSIS >
FUEL LEVEL SENSOR SIGNAL CIRCUIT
3.
CHECK FUEL LEVEL SENSOR GROUND CIRCUIT
1. Disconnect ECM connector F11.
2. Check continuity between combination meter harness connector M24 terminal 24 and fuel level sensor
unit and fuel pump harness connector B44 terminal 5.
3. Check continuity between fuel level sensor unit and fuel pump harness connector B44 terminal 5 and
ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK INSTALLATION CONDITION
Check fuel level sensor unit installation, and verify the float arm does not interfere or bind with the internal
components in the fuel tank.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Install the fuel level sensor unit properly.
Component Inspection
INFOID:0000000009654128
1.
REMOVE FUEL LEVEL SENSOR UNIT
Remove the fuel level sensor unit. Refer to
FL-6, "Removal and Installation"
.
>> GO TO 2.
2.
CHECK FUEL LEVEL SENSOR UNIT
Check the resistance between fuel level sensor unit and fuel pump.
*: When float rod is in contact with stopper.
Is inspection result OK?
YES
>> Inspection End.
NO
>> Replace fuel level sensor unit and fuel pump. Refer to
FL-6, "Removal and Installation"
.
Connector
Terminal
Connector
Terminal
Continuity
M24
24
B44
5
Yes
Connector
Terminal
Ground
Continuity
B44
5
No
Terminals
Condition
Resistance (
Ω)
(Approx.)
Height [mm (in)]
Fuel level sensor unit
2
5
Full
*
(A)
51
171.4 (6.75)
Empty
*
(B)
283
18.5 (0.73)
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