2007 INFINITI FX35 Service Manual

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Page 1265 of 4366

INFINITI FX35 2007 Service Manual COMBINATION METERS DI-19
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Revision: 2006 July 2007 FX35/FX45
Vehicle Speed Signal InspectionNKS002ZP
Symptom: Speedometer and odo/trip meter indication is malfun

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INFINITI FX35 2007 Service Manual DI-20
COMBINATION METERS
Revision: 2006 July 2007 FX35/FX45
3. CHECK CONTINUITY BETWEEN COMBINATION METER AND UNIFIED METER AND A/C AMP.
1. Turn ignition switch OFF.
2. Disconnect combination meter

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INFINITI FX35 2007 Service Manual COMBINATION METERS DI-21
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Revision: 2006 July 2007 FX35/FX45
Engine Coolant Temperature Signal InspectionNKS002ZR
Symptom: Water temperature gauge indication is

Page 1268 of 4366

INFINITI FX35 2007 Service Manual DI-22
COMBINATION METERS
Revision: 2006 July 2007 FX35/FX45
1. CHECK COMBINATION METER INPUT SIGNAL
1. Select “METER A/C AMP” on CONSULT-II.
2. Using “FUEL METER” on “DATA MONITOR”, comp

Page 1269 of 4366

INFINITI FX35 2007 Service Manual COMBINATION METERS DI-23
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Revision: 2006 July 2007 FX35/FX45
4. CHECK FUEL LEVEL SENSOR (MAIN) CIRCUIT
1. Check continuity between fuel level sensor unit and fu

COMBINATION METERS DI-23
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4. CHECK FUEL LEVEL SENSOR (MAIN) CIRCUIT
1. Check continuity between fuel level sensor unit and fuel pump (main) harness connector (A) B39 terminal 5 and unified meter
and A/C amp. harness connector (B) M56 terminal 36.
2. Check continuity between fuel level sensor unit and fuel pump (main) harness connector (A) B39 terminal 5 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK FUEL LEVEL SENSOR
Check components. Refer to DI-24, "
FUEL LEVEL SENSOR UNIT" .
OK or NG
OK >> 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. Repair or replace malfunctioning part, if neces-
sary.
NG >> Replace fuel level sensor unit.
Fuel Gauge Pointer Fluctuates, Indicator Wrong Value or VariesNKS002ZU
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 PositionNKS002ZV
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. 5 – 36 : Continuity should exist.
5 – Ground : Continuity should not exist.
SKIB8528E

Page 1270 of 4366

INFINITI FX35 2007 Service Manual DI-24
COMBINATION METERS
Revision: 2006 July 2007 FX35/FX45
4. QUESTION 4
During driving, does the fuel gauge pointer move gradually toward EMPTY position?
YES >> Check the fuel level sensor unit. Re

DI-24
COMBINATION METERS
Revision: 2006 July 2007 FX35/FX45
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-24, "FUEL LEVEL SENSOR UNIT" .
NO >> The float arm may interfere or bind with any of the components in the fuel tank.
Odo/Trip Meter and Illumination Control Switch InspectionNKS002ZT
Symptom: Illumination control does not operate.
1. CHECK ODO/TRIP METER AND ILLUMINATION CONTROL SWITCH
1. Remove odo/trip meter and illumination control switch. Refer to DI-27, "
Removal and Installation of Odo/
Trip Meter and Illumination Control Switch" .
2. Check continuity odo/trip meter and illumination control switch. Refer to DI-24, "
ODO/TRIP METER AND
ILLUMINATION CONTROL SWITCH" .
OK or NG
OK >> Replace combination meter.
NG >> Replace odo/trip meter and illumination control switch.
Electrical Components InspectionNKS002ZW
ODO/TRIP METER AND ILLUMINATION CONTROL SWITCH
Check continuity between terminals 25, 26, 35 or 36 and 27.
FUEL LEVEL SENSOR UNIT
For removal, refer to FL-4, "FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY" .
Fuel Level Sensor Unit and Fuel Pump (Main)
Check the 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-25, "
Fuel Level Sen-
sor Unit and Pump (Main) Harness" .
Terminal Condition Continuity
25
27 Illumination control switch (–) is pressed. Yes
Illumination control switch (–) is released. No
26 Illumination control switch (+) is pressed. Yes
Illumination control switch (+) is released. No
35 Trip transfer switch is pressed. Yes
Trip transfer switch is released. No
36 Trip reset switch is pressed. Yes
Trip reset switch is released. No
SKIB8529E
Terminal Float position [mm (in)] Resistance
value [ Ω]
25 *1 Full 236 (9.29) Approx. 3
*2 Empty 29 (1.14) Approx. 80
SKIB3550J

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INFINITI FX35 2007 Service Manual COMBINATION METERS DI-25
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Revision: 2006 July 2007 FX35/FX45
Fuel Level Sensor Unit and Pump (Main) Harness
Check continuity at following terminals.
If the resu

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INFINITI FX35 2007 Service Manual DI-26
COMBINATION METERS
Revision: 2006 July 2007 FX35/FX45
DISASSEMBLY
1. Remove screws (A) and remove rear cover (1).
2. Disconnect odo/trip meter and illumination control switch con- nector (2).

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