ignition INFINITI FX35 2004 Service Manual

COMBINATION METERS
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Revision: 2004 November 2004 FX35/FX45
Vehicle Speed Signal InspectionAKS005MV
1. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
Preform the ABS actuator and electric unit (control unit) self-diagnosis. Refer to BRC-25, "
CONSULT-II Func-
tions" .
OK or NG
OK >> GO TO 2.
NG >> Check the applicable parts.
2. CHECK UNIFIED METER AND A/C AMP. OUTPUT SIGNAL
1. Start engine and drive vehicle at approximately 40 km/h (25 MPH).
2. Check voltage signal between combination meter harness con-
nector M20 terminal 1 (R/G) and ground with simple oscillo-
scope of CONSULT-II.
OK or NG
OK >> Replace combination meter.
NG >> GO TO 3.
3. CHECK VOLTAGE OF COMBINATION METER
1. Turn ignition switch OFF.
2. Disconnect unified meter and A/C amp. connector and display control unit connector (with navigation sys-
tem) or display unit connector (without navigation system).
3. Turn ignition switch ON.
4. Check voltage between combination meter harness connector
M20 terminal 1 (R/G) and ground.
OK or NG
OK >> GO TO 4.
NG >> Replace combination meter.
METER COMM CIRC [B2202]Inspect the communication line
between combination meter and
unified meter and A/C amp.Refer to DI-22, "Communication Line Inspection" .
VEHICLE SPEED CIRC [B2205]Inspect the vehicle speed input
signal.Perform the ABS actuator and electric unit (control unit) self-
diagnosis. Refer to BRC-25, "
CONSULT-II Functions" .
CAUTION:
Even when there is no malfunction on speed signal sys-
tem, malfunction may be misinterpreted when battery has
low voltage (when maintaining 7-8V for about 2 seconds). Displayed item [Code] Inspection contents Possible cause
1 (R/G) - Ground:
SKIA4889EPKIA1935E
Approx. 12V
SKIA6730E

DI-20
COMBINATION METERS
Revision: 2004 November 2004 FX35/FX45
Fuel Level Sensor Signal Inspection 1AKS005MY
The following symptoms do not indicate a malfunction.
FUEL GAUGE

Depending on vehicle position or driving circumstance, the fuel in the tank flows and the pointer may fluc-
tuate.

If the vehicle is fueled with the ignition switch ON, the pointer will move slowly.
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 MONIOR”, compare the value
of “DATA MONITOR” with fuel gauge pointer of combination
meter.
OK or NG
OK >> GO TO 2.
NG >> Replace combination meter.
2. CHECK FUEL LEVEL SENSOR
Check components. Refer to DI-25, "
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 M56 terminal 28 (W/B) and fuel level sensor unit (sub)
harness connector B40 terminal 1 (LG).
3. Check continuity between unified meter and A/C amp. harness
connector M56 terminal 28 (W/B) 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. 86
Three quarters Applox. 70
Half Approx. 48
A quarter Approx. 25
Empty Approx. 9
PKIA2088E
Continuity should exist.
Continuity should not exist.
SKIA5203E

DI-22
COMBINATION METERS
Revision: 2004 November 2004 FX35/FX45
CAN Communication System InspectionAKS005N0
1. CHECK CAN COMMUNICATION
1. Select “SELF-DIAG RESULTS” mode for “METER A/C AMP” with CONSULT-II.
2. Print out CONSULT-II screen.
>> Go to “CAN system”. Refer to LAN-4, "
Precautions When Using CONSULT-II" .
Communication Line InspectionAKS005N1
1. CHECK CONNECTOR
Check combination meter, unified meter and A/C amp. and terminals (combination meter-side, unified meter
and A/C amp. side, and harness side) for looseness or bent terminals.
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK METER/GAUGES VISUALLY
Does the pointer on the meter/gauge fluctuate at the engine start?
Is the fluctuation acceptable?
YES >> GO TO 3.
NO >> GO TO 6.
3. CHECK CONTINUITY COMMUNICATION CIRCUIT (TX: COMBINATION METER)
1. Turn ignition switch OFF.
2. Disconnect the combination meter connector and unified meter and A/C amp. connector.
3. Check continuity between combination meter harness connector
M20 terminal 13 (L/B) and unified meter and A/C amp. harness
connector M55 terminal 19 (L/B).
4. Check continuity between combination meter harness connector
M20 terminal 13 (L/B) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK VOLTAGE OF UNIFIED METER AND A/C AMP.
1. Connect unified meter and A/C amp. connector.
2. Turn ignition switch ON.
3. Check voltage between combination meter harness connector
M20 terminal 13 (L/B) and ground.
OK or NG
OK >> GO TO 5.
NG >> Replace unified meter and A/C amp. Refer to DI-34,
"Removal and Installation of Unified Meter and A/C
Amp." . Continuity should exist.
Continuity should not exist.
SKIA4837E
Approx. 5V
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COMBINATION METERS
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Revision: 2004 November 2004 FX35/FX45
5. CHECK VOLTAGE SIGNAL OF COMBINATION METER
1. Turn ignition switch OFF and connect combination meter connector.
2. Turn ignition switch ON.
3. Check voltage signal between combination meter harness con-
nector M20 terminal 13 (L/B) and ground with simple oscillo-
scope of CONSULT-II.
OK or NG
OK >> Replace unified meter and A/C amp. Refer to DI-34, "Removal and Installation of Unified Meter
and A/C Amp." .
NG >> Replace combination meter.
6. CHECK CONTINUITY COMMUNICATION CIRCUIT (RX: COMBINATION METER)
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and unified meter and A/C amp. connector.
3. Check continuity between combination meter harness connector
M20 terminal 14 (PU) and unified meter and A/C amp. harness
connector M55 terminal 9 (PU).
4. Check continuity between combination meter harness connector
M20 terminal 14 (PU) and ground.
OK or NG
OK >> GO TO 7.
NG >> Repair harness or connector.
7. CHECK VOLTAGE OF COMBINATION METER
1. Connect combination meter connector.
2. Turn ignition switch ON.
3. Check voltage between unified meter and A/C amp. harness
connector M55 terminal 9 (PU) and ground.
OK or NG
OK >> GO TO 8.
NG >> Replace combination meter.13 (L/B) - Ground:
SKIA9258ESKIA3361E
Continuity should exist.
Continuity should not exist.
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Approx. 5V
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DI-24
COMBINATION METERS
Revision: 2004 November 2004 FX35/FX45
8. CHECK VOLTAGE SIGNAL OF UNIFIED METER AND A/C AMP.
1. Turn ignition switch OFF and connect unified meter and A/C amp. connector.
2. Turn ignition switch ON.
3. Check voltage signal between combination meter harness con-
nector M20 terminal 14 (PU) and ground with simple oscillo-
scope of CONSULT-II.
OK or NG
OK >> Replace combination meter.
NG >> Replace unified meter and A/C amp. Refer to DI-34, "
Removal and Installation of Unified Meter
and A/C Amp." .
Odo/Trip Meter and Illumination Control Switch InspectionAKS005N2
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 between odo/trip meter and illumination control
switch harness connector terminals 25, 26, 35 or 36 and 27.
OK or NG
OK >> Replace combination meter.
NG >> Replace odo/trip meter and illumination control switch.
Fuel Gauge Pointer Fluctuates, Indicator Wrong Value or VariesAKS005N3
1. CHECK FUEL GAUGE FLUCTUATION
Test drive vehicle to see if gauge fluctuates only during driving or before or after stopping.
Does the indication value vary only during driving or before or after 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. 14 (PU) - Ground:
SKIA9260ESKIA3362E
Terminal Condition Continuity
26
27Illumination control switch (+) is pushed. Yes
Illumination control switch (+) is released. No
25Illumination control switch (–) is pushed. Yes
Illumination control switch (–) is released. No
36Trip transfer switch is pushed. Yes
Trip transfer switch is released. No
35Trip reset switch is pushed. Yes
Trip reset switch is released. No
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COMBINATION METERS
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Revision: 2004 November 2004 FX35/FX45
Fuel Gauge Does Not Move to FULL positionAKS005N4
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-25, "CHECK FUEL LEVEL SENSOR UNIT" .
NO >> The float arm may interfere or bind with any of the components in the fuel tank.
Electrical Components InspectionAKS005N5
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)
1. Check the resistance between terminals 2 and 5.
*1 and *2: When float rod is in contact with stopper.
2. If the results of check is NG, check the fuel level sensor unit and
fuel pump (main) harness.
Check Fuel Level Sensor Unit and Pump (Main) Harness
1. Check continuity at following terminals.
2. If the results of check is NG, replace fuel pump assembly. If the
results of check is OK, replace fuel level sensor unit.
Terminal
Float position mm (in)Resistance
value Ω
(+) (−)
25*1 Empty 29 (1.14) Approx. 80
*2 Full 236 (9.29) Approx. 3
PKIA1936E
Terminal Continuity
2 - Signal terminal
Ye s
5 - Ground terminal
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UNIFIED METER AND A/C AMP
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Revision: 2004 November 2004 FX35/FX45
CONSULT-II FunctionAKS005NB
CONSULT-II performs the following functions communicating with the unified meter and A/C amp.
CONSULT-II BASIC OPERATION
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. With the ignition switch OFF, connect “CONSULT-II” and “CON-
SULT-II CONVERTER” to the data link connector, then turn igni-
tion switch ON.
2. Touch “START (NISSAN BASED VHCL)”.
3. Touch “METER A/C AMP” on “SELECT SYSTEM” screen. If
“METER A/C AMP” is not indicated, go to GI-40, "
CONSULT-II
Data Link Connector (DLC) Circuit" .
4. Select “SELF-DIAG RESULTS”, “CAN DIAG SUPPORT MNTR”
or “DATA MONITOR”.
System part Check item, diagnosis mode Description
METER A/C AMPSelf-diagnostic resultsUnified meter and A/C amp. check the conditions and indicates any error that
unified meter and A/C amp. memorized.
CAN diagnostic support monitor The results of transmit/receive diagnosis of CAN communication can be read.
Data monitor Displays unified meter and A/C amp. input data in real time.
PBIB1503E
SKIA3098E
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DI-32
UNIFIED METER AND A/C AMP
Revision: 2004 November 2004 FX35/FX45
SELF-DIAGNOSTIC RESULTS
Operation Procedure
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.
2. Self-diagnosis results are displayed.
Display Item List
“TIME” indicates the condition of the self-diagnosis results judged by each signal input.

Normal: In case of operating properly at the present in spite of having malfunction in the past, then “TIME”
indicates “1-63”.

Malfunction: Soon after detecting malfunctions by self-diagnoses or current malfunction, “0” is indicated.
After returning to normal condition, every time when ignition switch is turned to “OFF” from “ON”, time will be
added like “1”→“2”→“3”···“63”, and when the key operation is performed 64 times, the result of the self-diag-
noses will be erased. And if any malfunction is detected again, “0” will be indicated.
CAUTION:
“TIME” keeps showing “0” after returning to normal condition only in the case that malfunction his-
tory of “CAN COMM CIRC [U1000]” remains because of low tire pressure warning control unit, display
control unit (with NAVI) or display unit (without NAVI) malfunction.
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
2. Touch either “MAIN SIGNALS” or “SELECTION FROM MENU” on the “DATA MONITOR” screen.
3. When “SELECTION FROM MENU” is selected, touch individual items to be monitored. When “MAIN SIG-
NALS” is selected, main items will be monitored.
SKIA4956E
CONSULT-ll display Malfunction is detected when...
CAN COMM CIRC [U1000]Malfunction is detected in CAN communication.
CAUTION:
Even when there is no malfunction on CAN communication system, malfunction may be
misinterpreted when battery has low voltage (when maintaining 7-8V for about 2 seconds)
or 10A fuse [No. 19, located in the fuse block (J/B)] is disconnected.
METER COMM CIRC [B2202]Malfunction is detected in communication of between combination meter and unified meter and
A/C amp.
VEHICLE SPEED CIRC [B2205]When an erroneous speed signal is input for 1 seconds.
CAUTION:
Even when there is no malfunction on speed signal system, malfunction may be misinter-
preted when battery has low voltage (when maintaining 7-8V for about 2 seconds).
MAIN SIGNALS Monitors main signals.
SELECTION FROM MENU Selects and monitors individual signal.

COMPASS
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Revision: 2004 November 2004 FX35/FX45
COMPASSPFP:24835
System DescriptionAKS007AO
This unit displays earth magnetism and heading direction of vehicle.
DIRECTION DISPLAY
Push the switch when the ignition key is in the “ON” or “START” position. The direction will be displayed.
Pushing the “COMP” switch a second time will turn off the display.
1. If the display reads “C” calibrate the compass by driving the vehicle in 3 complete circles at less than 8
km/h (5 MPH).
2. To adjust for compass variance:
a. Press the “COMP” switch for more than 3 seconds. The current zone number will appear in the display.
b. Find your current location and variance zone number on the zone map.
c. Press the “COMP” switch until the new zone number appears in the display. After you stop pressing the
button in, the display will show a compass direction within a few seconds.
NOTE:
1. Do not install the ski rack, antenna, etc. which are attached to the vehicle by means of a magnet. They
affect the operation of the compass.
2. If the compass deviates from the correct indication soon after repeated adjustment, have the compass
checked at an authorized dealer.
3. The compass may not indicate the correct compass point in tunnels or while driving up or down a steep
hill. (The compass returns to the correct compass point when the vehicle moves to an area where the
geomagnetism is stabilized.)
3. Cleaning the Mirror
When cleaning the mirror, use a paper towel or similar material dampened with glass cleaner. Do not
spray glass cleaner directly on the mirror as that may cause the liquid cleaner to enter the mirror housing.
SKIA5335E

DI-48
WARNING LAMPS
Revision: 2004 November 2004 FX35/FX45
Oil Pressure Warning Lamp Stays Off (Ignition Switch ON)AKS005NF
1. CHECK SELF-DIAGNOSTIC RESULTS OF UNIFIED METER AND A/C AMP.
1. Start engine.
2. Select “METER A/C AMP” on CONSULT-II, and perform self-diagnosis of unified meter and A/C amp.
Refer to DI-31, "
CONSULT-II Function" .
3. After erasing the self-diagnostic results, perform self-diagnosis again.
Self-diagnostic results content
No malfunction detected>> GO TO 2.
Malfunction detected>> GO TO DI-16, "
Symptom Chart 2" in “COMBINATION METER”.
2. CHECK IPDM E/R OUTPUT SIGNAL
Activate IPDM E/R auto active test. Refer to PG-24, "
Auto Active Test" .
Does oil pressure warning lamp is blinking?
YES >> GO TO 5.
NO >> GO TO 3.
3. CHECK BCM INPUT SIGNAL
Select “DATA MONITOR” of “SIGNAL BUFFER”. Refer to BCS-12,
"CONSULT-II" . Operate ignition switch with “OIL PRESS SW” of
“DATA MONITOR” and check operate status.
OK or NG
OK >> GO TO 4.
NG >> Replace IPDM E/R. Refer to PG-30, "
Removal and
Installation of IPDM E/R" .
4. CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
Select “METER A/C AMP” on CONSULT-II. Operate ignition switch
with “OIL W/L” of “DATA MONITOR” and check operation status.
OK or NG
OK >> Replace combination meter.
NG >> Replace BCM. Refer to BCS-15, "
Removal and Installa-
tion of BCM" . When ignition switch is in ON
position (Engine stopped): OIL PRESS SW ON
When engine running : OIL PRESS SW OFF
SKIA8709E
When ignition switch is in ON
position (Engine stopped): OIL W/L ON
When engine running : OIL W/L OFF
PKIA2064E