2007 INFINITI M35 component

COMBINATION METERS
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Revision: 2007 April2007 M35/M45
Component Parts LocationNKS003TX
SKIB8947E

COMBINATION METERS
DI-23
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Revision: 2007 April2007 M35/M45
1. CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select “METER A/C AMP” on CONSULT-II.
2. Using “FUEL METER” on “DATA MONITOR”, compare the value
of “DATA MONITOR” to the indication of fuel gauge of combina-
tion meter.
OK or NG
OK >> GO TO 2.
NG >> Replace combination meter.
2. CHECK FUEL LEVEL SENSOR
1. Turn ignition switch OFF.
2. Check components. Refer to DI-26, "
CHECK FUEL LEVEL SENSOR UNIT" .
OK or NG
OK >> GO TO 3.
NG >> Replace fuel level sensor unit.
3. CHECK FUEL LEVEL SENSOR (SUB) CIRCUIT
1. Disconnect unified meter and A/C amp. connector and fuel level
sensor unit (sub) connector.
2. Check continuity between unified meter and A/C amp. harness
connector (A) and fuel level sensor unit (sub) harness connector
(B).
3. Check continuity between unified meter and A/C amp. harness
connector (A) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
Fuel gauge pointer Reference value of data monitor [lit.]
Full Approx. 74
Three quarters Approx. 61
Half Approx. 42
A quarter Approx. 22
Empty Approx. 8
PKIA2088E
AB
Continuity
Connector Terminal Connector Terminal
M65 42 B52 1 Yes
A
GroundContinuity
Connector Terminal
M65 42 No
PKIB7642E

DI-24
COMBINATION METERS
Revision: 2007 April2007 M35/M45
4. CHECK FUEL LEVEL SENSOR (MAIN-SUB) CIRCUIT
1. Disconnect fuel level sensor unit and fuel pump (main) connec-
tor.
2. Check continuity between fuel level sensor unit (sub) harness
connector (A) and fuel level sensor unit and fuel pump (main)
harness connector (B).
3. Check continuity between fuel level sensor unit (sub) harness
connector (A) and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK FUEL LEVEL SENSOR (MAIN) CIRCUIT
Check continuity between fuel level sensor unit and fuel pump
(main) harness connector (A) and unified meter and A/C amp. har-
ness connector (B).
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
6. 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.
OK or NG
OK >> Replace unified meter and A/C amp.
NG >> Install the fuel level sensor unit properly.
AB
Continuity
Connector Terminal Connector Terminal
B52 2 B433 2 Yes
A
GroundContinuity
Connector Terminal
B52 2 No
PKIB7643E
AB
Continuity
Connector Terminal Connector Terminal
B4335 M6558Yes
PKIB7644E

COMBINATION METERS
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Revision: 2007 April2007 M35/M45
Fuel Gauge Pointer Fluctuates, Indicator Wrong Value or VariesNKS003UB
1. CHECK FUEL GAUGE FLUCTUATION
Test drive vehicle to see if gauge fluctuates only during driving or at the instant of stopping.
Does the indication value vary only during driving or at the instant of stopping?
YES >> The pointer fluctuation may be caused by fuel level change in the fuel tank. Condition is normal.
NO >> Ask the customer about the situation when the symptom occurs in detail, and perform the trouble
diagnosis.
Fuel Gauge Does Not Move to FULL PositionNKS003UC
1. QUESTION 1
Does it take a long time for the pointer to move to FULL position?
YES >> GO TO 2.
NO >> GO TO 3.
2. QUESTION 2
Was the vehicle fueled with the ignition switch ON?
YES >> Be sure to fuel the vehicle with the ignition switch OFF. Otherwise, it will take a long time to move
to FULL position because of the characteristic of the fuel gauge.
NO >> GO TO 3.
3. QUESTION 3
Is the vehicle parked on an incline?
YES >> Check the fuel level indication with vehicle on a level surface.
NO >> GO TO 4.
4. QUESTION 4
During driving, does the fuel gauge pointer move gradually toward EMPTY position?
YES >> Check the fuel level sensor unit. Refer to DI-26, "CHECK FUEL LEVEL SENSOR UNIT" .
NO >> The float arm may interfere or bind with any of the components in the fuel tank.

DI-26
COMBINATION METERS
Revision: 2007 April2007 M35/M45
Electrical Components InspectionNKS003UD
CHECK FUEL LEVEL SENSOR UNIT
For removal, refer to FL-4, "FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY" .
Check Fuel Level Sensor Unit and Fuel Pump (Main)
Check resistance between terminals 2 and 5.
*1 and *2: When float rod is in contact with stopper.

If the results of check are NG, check the fuel level sensor unit
and fuel pump (main) harness. Refer to DI-26, "
Check Fuel
Level Sensor Unit and Pump (Main) Harness" .
Check Fuel Level Sensor Unit and Pump (Main) Harness
Check continuity at following terminals.

If the results of check are NG, replace fuel pump assembly. If the
results of check are OK, replace fuel level sensor unit.
Check Fuel Level Sensor Unit (Sub)
Check resistance between terminals 1 and 2.
*1 and *2: When float rod is in contact with stopper.Terminal Float position [mm (in)] Resistance value [Ω]
25*1 Full 210 (8.27) Approx. 3
*2 Empty 30 (1.18) Approx. 80
SKIB3550J
Terminal Continuity
2 - Signal terminal (A)
Ye s
5 - Ground terminal (B)
SKIB3551J
Terminal Float position [mm (in)]Resistance
value [Ω]
12*1 Full 9 (0.35) Approx. 3
*2 Empty 179 (7.05) Approx. 43
SKIB2678J

DI-40
WARNING LAMPS
Revision: 2007 April2007 M35/M45
Component Parts and Harness Connector LocationNKS003UP
PKIB7653E

DI-54
WARNING LAMPS
Revision: 2007 April2007 M35/M45
4. CHECK OIL PRESSURE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector and
ground.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-31, "Removal and
Installation of IPDM E/R" .
NG >> Repair harness or connector.
5. CHECK IPDM E/R (CONSULT-II)
Perform self-diagnosis of IPDM E/R. Refer to PG-20, "
CONSULT-II Function (IPDM E/R)" .
Self
-diagnostic results content
No malfunction detected>> Replace combination meter.
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.
Electrical Component InspectionNKS003UU
OIL PRESSURE SWITCH
Check continuity between oil pressure switch and ground.
IPDM E/R connector Terminal
GroundContinuity
E9 52 No
PKIB7659E
Condition
Oil pressure [kPa (kg/cm2 , psi)]Continuity
Engine stopped Less than 29 (0.3, 4) Yes
Engine running More than 29 (0.3, 4) No
ELF0044D

WARNING CHIME
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Revision: 2007 April2007 M35/M45
Component Parts and Harness Connector LocationNKS003UZ
PKIB7661E