Infiniti G35 (V35) Sedan. Manual — part 956
MWI
POWER SUPPLY AND GROUND CIRCUIT
MWI-51
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
N
A
O
P
Does continuity exist?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
BCM (BODY CONTROL MODULE) : Special Repair Requirement
INFOID:0000000000964396
1.
REQUIRED WORK WHEN REPLACING BCM
Initialize IVIS by CONSULT-III. For the details of initialization refer to CONSULT-III operation manual NATS-
IVIS/NVIS.
>> Work end.
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) : Di-
agnosis Procedure
INFOID:0000000000964397
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.
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.
BCM
Ground
Continuity
Connector
Terminal
M119
13
Existed
Terminal No.
Signal name
Fuses and fusible link No.
1
Battery power supply
C
—
50
51
Terminals
Voltage
(Approx.)
(+)
(
−
)
IPDM E/R
Connector
Terminal
Ground
E4
1
Battery voltage
2
MWI-52
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
Does continuity exist?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
IPDM E/R
Ground
Continuity
Connector
Terminal
E5
12
Existed
E6
41
MWI
FUEL LEVEL SENSOR SIGNAL CIRCUIT
MWI-53
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
N
A
O
P
FUEL LEVEL SENSOR SIGNAL CIRCUIT
Description
INFOID:0000000000964398
The fuel level sensor unit and fuel pump (main) and the fuel level sensor unit (sub) detect the fuel level in the
fuel tank and transmit the fuel gauge signal to the unified meter and A/C amp.
Component Function Check
INFOID:0000000000964399
1.
CHECK UNIFIED METER AND A/C AMP. 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:0000000000964400
1.
CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1.
Turn ignition switch ON.
2.
Check voltage between unified meter and A/C amp. harness connector M67 terminal 42 and ground.
Does it match fuel gauge reading?
YES
>> GO TO 2.
NO
>> Replace the unified meter and A/C amp.
2.
CHECK FUEL LEVEL SENSOR (SUB) CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect unified meter and A/C amp. connector and fuel level sensor unit (sub) connector.
3.
Check continuity between unified meter and A/C amp. harness connector M67 terminal 42 and fuel level
sensor unit (sub) harness connector B21 terminal 1.
4.
Check continuity between unified meter and A/C amp. harness connector M67 terminal 42 and ground.
Is the inspection result normal?
OK
>> GO TO 3.
NG
>> Repair harness or connector.
3.
CHECK FUEL LEVEL SENSOR (MAIN-SUB) CIRCUIT
Fuel gauge pointer
Reference value of data monitor [lit.]
Full
Approx. 68.8
Three quarters
Approx. 60
Half
Approx. 39.2
A quarter
Approx. 20.8
Empty
Approx. 5.6
42 - Ground :
JSNIA0013GB
42 - 1
: Continuity should exist.
42 -Ground
: Continuity should not exist.
MWI-54
< COMPONENT DIAGNOSIS >
FUEL LEVEL SENSOR SIGNAL CIRCUIT
1.
Disconnect fuel level sensor unit and fuel pump (main) connector.
2.
Check continuity between fuel level sensor unit (sub) harness connector B21 terminal 2 and fuel level
sensor unit and fuel pump (main) harness connector B22 terminal 2.
3.
Check continuity between fuel level sensor unit (sub) harness connector B22 terminal 2 and ground.
Is the inspection result normal?
OK
>> GO TO 4.
NG
>> Repair harness or connector.
4.
CHECK FUEL LEVEL SENSOR (MAIN) CIRCUIT
Check continuity between fuel level sensor unit and fuel pump (main) harness connector B22 terminal 5 and
unified meter and A/C amp. harness connector M67 terminal 58.
Is the inspection result normal?
OK
>> GO TO 5.
NG
>> Repair harness or connector.
5.
CHECK INSTALLATION CONDITION
Check fuel level sensor unit installation, and check whether the float arm interferes or binds with any of 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:0000000000964401
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 AND FUEL PUMP (MAIN)
Check the resistance between fuel level sensor unit and fuel pump
(main).
Standard float position
Is inspection result OK?
YES
>> GO TO 3.
NO
>> Replace fuel level sensor unit and fuel pump (main).
3.
CHECK FUEL LEVEL SENSOR UNIT (SUB)
2 - 2
: Continuity should exist.
2 - Ground
:Continuity should not exist.
5 - 58
: Continuity should exist.
2 - 5
Full
: Approx. 3
Ω
Empty
: Approx. 80
Ω
JSNIA0110ZZ
Full (A) [mm (in)]
: Approx. 210 (8.27)
Empty (B) [mm (in)]
: Approx. 30 (1.18)
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