reset INFINITI FX35 2008 User Guide

DI-14
< SERVICE INFORMATION >
COMBINATION METERS
Terminal and Reference Value for Unified Meter and A/C Amp
INFOID:0000000001328439
Self-Diagnosis Mode of Combination MeterINFOID:0000000001328440
SELF-DIAGNOSIS FUNCTION
 Odo/trip meter, A/T indicator and ICC system disp lay segments operation can be checked in self-diagnosis
mode.
 Meters/gauges can be checked in self-diagnosis mode.
OPERATION PROCEDURE
1. Turn ignition switch ON, and switch the odo/trip meter to “trip A” or “trip B”. NOTE:
If the self-diagnosis function is activated with the “t rip A” displayed, only “trip A” display is reset.
2. Turn ignition switch OFF.
Te r m i n a l No. Wire
color Item Condition
Reference value
Ignition
switch Operation or condition
1 L CAN-H — — —
9PU TX communication line (To
combination meter) ON —
11 P C A N - L — — —
19 L/B RX communication line (From
combination meter) ON —
21 R/W Battery power supply OFF — Battery voltage
22 W Ignition power supply ON — Battery voltage
26 G Vehicle speed signal
(8-pulse)
ONSpeedometer operated
[When vehicle speed is ap-
prox. 40 km/h (25 MPH)] NOTE:
Maximum voltage may be 5 V due to
specifications (connected units).
28 W/B Fuel level sensor signal — — Refer to
DI-21, "
Electrical Compo-
nent Inspection".
29 B Ground (For power) ON — Approx. 0 V
30 B Ground ON — Approx. 0 V
36 B/W Fuel level sensor ground ON — Approx. 0 V
46 L/W ACC power supply ACC — Battery voltage
SKIA3362E
SKIA3361E
PKIA1935E
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COMBINATION METERSDI-15
< SERVICE INFORMATION >
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3. Turn ignition switch ON while pressing trip transfer switch and trip reset switch at the same time.
4. After ignition switch is turned ON, release trip transfer switch and trip reset switch (within 7 seconds after the ignition switch is
turned ON).
5. All the segments on the odo/trip meter, A/T indi cator and ICC system display illuminates, and simulta-
neously the low-fuel warning lamp indicator illuminates. At this time, the unified meter control unit is turned
to self-diagnosis mode.
NOTE:
 Check odo/trip meter switch and combination meter power supply and ground circuit when self-diagno-
sis mode of combination meter does not start. Replace combination meter if the results of the check are
normal.
 If any of the segments are not disp layed, replace combination meter.
6. Each meter/gauge activates during pressing trip reset switch. (Then low-fuel warning lamp turns OFF.)
NOTE:
 If any of the meters/gauges are not activated, replace thecombination meter.
 The figure is reference.
CONSULT-III Function (METER/M&A)INFOID:0000000001328441
Refer to DI-27, "CONSULT-III Function (METER/M&A)" in “UNIFIED METER AND A/C AMP”.
Trouble DiagnosisINFOID:0000000001328442
HOW TO PERFORM TROUBLE DIAGNOSIS
1. Confirm the symptom or customer complaint.
2. Perform preliminary check. Refer to "PRELIMINARY CHECK".
3. According to the symptom chart, repair or replace the cause of the symptom. Refer to DI-16, "
Symptom
Chart".
4. Does the meter operate normally? If so, GO TO 5. If not, GO TO 2.
5. INSPECTION END
PRELIMINARY CHECK
1.CHECK OPERATION OF SELF-DIAGNOSIS MODE (COMBINATION METER)
SKIA4817E
SKIA6170E
SKIA4831E
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DI-22
< SERVICE INFORMATION >
COMBINATION METERS
Check continuity between terminals 25, 26, 35 or 36 and 27.
FUEL LEVEL SENSOR UNIT
For removal, refer to FL-4, "Component".
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 "Fuel Level Sensor Unit and
Pump (Main) Harness".
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.
Fuel Level Sensor Unit (Sub)
Check resistance between terminals 1 and 2.
*1 and *2: When float rod is in contact with stopper.
Removal and Installation of Combination MeterINFOID:0000000001328453
Refer to IP-10, "Component Parts Location".
Terminal Condition Continuity
25
27Illumination control swit
ch (–) is pressed. Yes
Illumination control swit ch (–) is released. No
26 Illumination control swit
ch (+) is pressed. Yes
Illumination control swit ch (+) 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 val-
ue [Ω]
25 *1 Full 236 (9.29) Approx. 3
*2 Empty 29 (1.14) Approx. 80
SKIB3550J
Terminal Continuity
2 - Signal terminal (A) Ye s
5 - Ground terminal (B)
SKIB3551J
Terminal Float position [mm (in)] Resistance val-
ue [Ω]
12 *1 Full 6 (0.24) Approx. 3
*2 Empty 203 (7.99) Approx. 48
SKIB8530E
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DI-94
< SERVICE INFORMATION >
COMPASS
COMPASS
Precaution for CompassINFOID:0000000001328520
NOTE:
 Do not install the ski rack, antenna, etc. which is attach to the vehicle with a magnet base. It affects the oper-
ation of the compass.
 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 it may c ause the liquid cleaner to enter the mirror housing.
System DescriptionINFOID:0000000001328521
 This electronic compass is able to display 8 primary directions: N, NE, E, SE, S, SW, W, NW.
 The inside mirror switch (2) is used to operate the compass and
automatic anti-glare system.
Switch Operation
NOTE:
For further details of the compass and automatic anti-glare system, refer to Owner's Manual
 All standard compasses determine direction relative to Magnetic North; however, this electronic compass is
designed to display direction relative to True North.
 The difference between Magnetic North and True North varies from place to place across the surface of the
earth.
 This electronic compass must be “told” approximately w here it is on the earth’s surface so that the Magnetic
North reading can be properly converted into a True North display.
 To tell the electronic compass where it’s at, the earth is separated into numbered “Zone Variances”. The
Zone Variance number in which the compass is to function must be entered into this electronic compass.
 Each zone is magnetically about 4.2 ° wide. Typically, anything under 22.5 ° total zone change is not noticed
on the electronic compass display. However, over 22.5 °, a reading may be off by one or more primary direc-
tions.
 On long trips, a vehicle may leave its original zone and enter one or more new zones. Generally, you do not need to reset the compass zone if you travel between 3 or 4 zones, such as business travel or vacation. The
typical driver will not notice any difference on the display within 3 or 4 zones. However, if the vehicle is “per-
manently” moved to a new location, it is recommended that the compass zone be reset.
TroubleshootingINFOID:0000000001328522
 The electronic compass is highly protected from changes in most magnetic fields. However, some large changes in magnetic fields can affect it. Some examples are (but not limited to): high tension power lines,
large steel buildings, subways, steel bridges, automatic car washes, large piles of scrap metal, etc. While
this does not happen very often, it is possible.
1. Compass display
2. Inside mirror switch
SKIB8487E
Press Compass is turned ON/OFF
Press and hold
(for 3 – 6 sec.) Automatic anti-glare system turns ON/OFF
Press and hold
(for 6 – 9 sec.) Compass display turns to zone variation change
mode
Press and hold
(for more than 9 sec.) Compass display turns to calibration mode
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COMPASSDI-95
< SERVICE INFORMATION >
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 During normal operation, the Compass Mirror will cont inuously update the compass calibration to adjust for
gradual changes in the vehicle's magnetic “remnant” field. If the vehicle is subjected to high magnetic influ-
ences, the compass may appear to indicate false headings , become locked, or appear that it is unable to be
calibrated. If this occurs, perform the calibration procedure.
 If at any time the compass continually displays the inco rrect direction or the reading is erratic or locked, ver-
ify the correct zone variance.
Troubleshooting Chart
Zone Variation Setting ProcedureINFOID:0000000001328523
NOTE:
The zone setting is factory preset (“default” setting) to zone 8.
1. Press and hold the inside mirror switch for 6 – 9 seconds.
2. The current zone setting appears on the compass display.
3. Find the current geographical location number in the Zone Varia-
tion Chart.
4. Select the new zone number. (Press the inside mirror switch until the new zone number appears on the compass display.)
5. After select the new zone number, the compass display will automatically shows a direction within a few seconds.
6. Preform the following Calibration Procedure for more accurate indications.
Calibration ProcedureINFOID:0000000001328524
NOTE:
The compass calibrates itself under normal driving conditions. However, occasional circumstances may cause
the compass to operate inaccurately. Example: Driving from rural (wide open) areas to crowded city areas, or
Symptom Cause Solution / Reference
The compass display reads “C”.
 Compass is not calibrated.
 Incorrect zone variance setting.
 Large change in magnetic field (Steel bridges, subways, concentrations of met-
al, carwashes, etc.)
 Compass was calibrated incorrectly or in
the presence of a strong magnetic field. Perform Calibration.
Refer to
DI-95, "
Calibration Procedure".
Compass shows the wrong direction.
Compass does not change direction – ap-
pears “Locked”.
Compass does not show all the directions,
one or more is missing.
The compass was calibrated but it “loses”
calibration.
On long trips the compass shows the wrong
direction.
Perform Zone Variatio
n Setting if correct
reading is desired in that location.
Refer to DI-95, "
Zone Variation Setting Pro-
cedure".
Compass does not work – No direction is
displayed. Compass not turned ON.
Check for green LED indicator (inside mir-
ror switch).
No power to inside mirror. Check power supply circuit.
SEL168Y
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EC-32
< SERVICE INFORMATION >[VQ35DE]
ENGINE CONTROL SYSTEM
*1: This sensor is not used to control the engine system under normal conditions.
*2: This signal is sent to the ECM through CAN communication line.
*3: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
The amount of fuel injected from the fuel injector is
determined by the ECM. The ECM controls the length of
time the valve remains open (injection pulse duration). T he amount of fuel injected is a program value in the
ECM memory. The program value is preset by engi ne operating conditions. These conditions are determined
by input signals (for engine speed and intake air) from both the crankshaft position sensor and the mass air
flow sensor.
VARIOUS FUEL INJECTION I NCREASE/DECREASE COMPENSATION
In addition, the amount of fuel injected is compens ated to improve engine performance under various operat-
ing conditions as listed below.
 During warm-up
 When starting the engine
 During acceleration
 Hot-engine operation
 When selector lever is changed from N to D
 High-load, high-speed operation
 During deceleration
 During high engine speed operation
MIXTURE RATIO FEEDBACK CONTROL (CLOSED LOOP CONTROL)
The mixture ratio feedback system prov ides the best air-fuel mixture ratio for driveability and emission control.
The three way catalyst 1 can then better reduce CO, HC and NOx emissions. This system uses air fuel ratio
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS) Engine speed*
3
Piston position
Fuel injection
& mixture ratio
controlFuel injector
Camshaft position sensor (PHASE)
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Air fuel ratio (A/F) sensor 1 Density of oxygen in exhaust gas
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Park/neutral position (PNP) switch Gear position
Knock sensor Engine knocking condition
Battery
Battery voltage*
3
Power steering pressure sensor Power steering operation
Heated oxygen sensor 2*
1Density of oxygen in exhaust gas
Air conditioner switch Air conditioner operation*
2
Wheel sensorVehicle speed*2
PBIB3020E
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EC-74
< SERVICE INFORMATION >[VQ35DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
tified codes can be identified by using the CONSULT-II
I or GST. A DTC will be used as an example for how to
read a code.
A particular trouble code can be identified by the number of four-digit numeral flashes. The “zero” is indicated
by the number of ten flashes. The “A” is indicated by the number of eleven flash. The length of time the
1,000th-digit numeral flashes on and off is 1.2 seconds consisting of an ON (0.6-second) - OFF (0.6-second)
cycle.
The 100th-digit numeral and lower digit numerals cons ist of a 0.3-second ON and 0.3-second OFF cycle.
A change from one digit numeral to another occurs at an inte rval of 1.0-second OFF. In other words, the later
numeral appears on the display 1.3 seconds after the former numeral has disappeared.
A change from one trouble code to another occu rs at an interval of 1.8-second OFF.
In this way, all the detected malfunctions are classi fied by their DTC numbers. The DTC 0000 refers to no mal-
function. (See EC-17
)
How to Erase Diagnostic Test Mode II (Self-diagnostic Results)
The DTC can be erased from the back up memory in t he ECM by depressing accelerator pedal. Refer to "How
to Set Diagnostic Test Mode II (Self-diagnostic Results)".
 If the battery is disconnected, the DTC will be lost from the backup memory within 24 hours.
 Be careful not to erase the stored memo ry before starting trouble diagnoses.
OBD System Operation ChartINFOID:0000000001325918
RELATIONSHIP BETWEEN MIL, 1ST TRIP DTC, DTC, AND DETECTABLE ITEMS
 When a malfunction is detected for the 1st time, the 1st trip DTC and the 1st trip freeze frame data are
stored in the ECM memory.
 When the same malfunction is detected in two consec utive trips, the DTC and the freeze frame data are
stored in the ECM memory, and the MIL will come on. For details, refer to EC-54, "
Two Trip Detection Logic".
 The MIL will go off after the vehicle is driven 3 time s (drive pattern B) with no malfunction. The drive is
counted only when the recorded driving pattern is met (as stored in the ECM). If another malfunction occurs
while counting, the counter will reset.
 The DTC and the freeze frame data will be stored until the vehicle is driven 40 times (driving pattern A) with-
out the same malfunction recurring (except for Misfire and Fuel Injection System). For Misfire and Fuel Injec-
tion System, the DTC and freez e frame data will be stored until the vehicle is driven 80 times (driving pattern
PBIB3005E
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TROUBLE DIAGNOSISEC-123
< SERVICE INFORMATION > [VQ35DE]
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VENT CONT/V
× The control condition of the EVAP canister vent
control valve (determined by ECM according to the
input signals) is indicated.
ON: Closed
OFF: Open
THRTL RELAY × Indicates the throttle co
ntrol motor relay control
condition determined by the ECM according to the
input signals.
COOLING FAN HI/MID/
LOW/
OFF  The control condition of the cooling fan (determined
by ECM according to the input signals) is indicated.
HI: High speed operation
MID: Middle speed operation
LOW: Low speed operation
OFF: Stop
HO2S2 HTR (B1) × Indicates [ON/OFF] condition of heated oxygen
sensor 2 heater determined by ECM according to
the input signals.
HO2S2 HTR (B2)
×
I/P PULLY SPD rpm  Indicates the engine speed computed from the tur-
bine revolution sensor signal.
VEHICLE SPEED km/h or
mph  Indicates the vehicle speed computed from the rev-
olution sensor signal.
IDL A/V LEARN YET/
CMPLT  Display the condition of idle air volume learning
YET: Idle Air Volume Learning has not been per-
formed yet.
CMPLT: Idle Air Volume Learning has already been
performed successfully.
TRVL AFTER MIL km or
mile  Distance traveled while MIL is activated.
SNOW MODE SW ON/OFF  Indicates [ON/OFF] condition from the snow mode
switch signal.
A/F S1 HTR(B1) %  Air fuel ratio (A/F) sensor 1 heater control value computed by ECM according to the input signals.
 The current flow to the heater becomes larger as the value increases.
A/F S1 HTR(B2) %
AC PRESS SEN V
 The signal voltage from the refrigerant pressure
sensor is displayed.
VHCL SPEED SE km/h or
mph  The vehicle speed computed from the vehicle
speed signal sent from TCM is displayed.
SET VHCL SPD km/h or
mph  The preset vehicle speed is displayed.
MAIN SW ON/OFF  Indicates [ON/OFF] condition from MAIN switch
signal.
CANCEL SW ON/OFF  Indicates [ON/OFF] condition from CANCEL switch
signal.
RESUME/ACC SW ON/OFF  Indicates [ON/OFF] condition from RESUME/AC-
CELERATE switch signal.
SET SW ON/OFF  Indicates [ON/OFF] condition from SET/COAST
switch signal.
BRAKE SW1 ON/OFF  Indicates [ON/OFF] condition from ASCD brake
switch signal.
BRAKE SW2 ON/OFF  Indicates [ON/OFF] condition of stop lamp switch
signal.
Monitored item Unit Description Remarks
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EC-126
< SERVICE INFORMATION >[VQ35DE]
TROUBLE DIAGNOSIS
Generic Scan Tool (OBDII scan tool) complying with SAE J1978 has
8 different functions explained below.
ISO15765-4 is used as the protocol.
The name GST or Generic Scan Tool is used in this service manual.
FUNCTION
INSPECTION PROCEDURE
1. Turn ignition switch OFF.
SEF139P
Diagnostic test mode Function
Service $01 READINESS TESTS This diagnostic service gains access to current emission-related data values, including an-
alog inputs and outputs, digital inputs and outputs, and system status information.
Service $02 (FREEZE DATA) This diagnostic service gains access to emission-related data value which were stored by
ECM during the freeze frame. For details, refer to
EC-55, "
Emission-Related Diagnostic
Information" .
Service $03 DTCs This diagnostic service gains access to emission-related power train trouble codes which
were stored by ECM.
Service $04 CLEAR DIAG INFO This diagnostic service can clear all emission-related diagnostic information. This in-
cludes:
 Clear number of diagnostic trouble codes (Service $01)
 Clear diagnostic trouble codes (Service $03)
 Clear trouble code for freeze frame data (Service $01)
 Clear freeze frame data (Service $02)
 Reset status of system monitoring test (Service $01)
 Clear on board monitoring test results (Service $06 and $07)
Service $06 (ON BOARD TESTS) This diagnostic service accesses the results of on board diagnostic monitoring tests of
specific components/systems that are not continuously monitored.
Service $07 (ON BOARD TESTS) This diagnostic service enables the off board test drive to obtain test results for emission-
related powertrain components/systems that are continuously monitored during normal
driving conditions.
Service $08 — This diagnostic service can close EVAP system in ignition switch ON position (Engine
stopped). When this diagnostic service is performed, the EVAP canister vent control valve
can be closed.
In the following conditions, this diagnostic service cannot function.
 Low ambient temperature
 Low battery voltage
 Engine running
 Ignition switch OFF
 Low fuel temperature
 Too much pressure is applied to EVAP system
Service $09 (CALIBRATION ID) This diagnostic service enables the off-board test device to request specific vehicle infor-
mation such as Vehicle Identification Number (VIN) and Calibration IDs.
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TROUBLE DIAGNOSISEC-129
< SERVICE INFORMATION > [VQ35DE]
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PURG VOL C/V
 Engine: After warming up
 Selector lever: P or N
 Air conditioner switch: OFF
 No load Idle
(Accelerator pedal is not depressed
even slightly, after engine starting)
0%
2,000 rpm —
INT/V TIM(B1)
INT/V TIM(B2)  Engine: After warming up
 Selector lever: P or N
 Air conditioner switch: OFF
 No load Idle
−5° - 5 °CA
When revving engine up to 2,000 rpm
quickly Approx. 0
° - 30 °CA
INT/V SOL(B1)
INT/V SOL(B2)  Engine: After warming up
 Selector lever: P or N
 Air conditioner switch: OFF
 No load Idle 0% - 2%
When revving engine up to 2,000 rpm
quickly
Approx. 0% - 50%
AIR COND RLY  Engine: After warming up, idle the
engine Air conditioner switch: OFF OFF
Air conditioner switch: ON
(Compressor operates)
ON
FUEL PUMP RLY  For 1 second after turning ignition switch ON
 Engine running or cranking
ON
 Except above conditions OFF
VENT CONT/V  Ignition switch: ON OFF
THRTL RELAY  Ignition switch: ON ON
COOLING FAN  Engine: After warming up, idle the
engine
 Air conditioner switch: OFF Engine coolant temperature is 97
°C
(207 °F) or less OFF
Engine coolant temperature is be-
tween 98 °C (208 °F) and 99 °C (210 °F) LOW
Engine coolant temperature is be-
tween 100 °C (212 °F) and 104 °C
(219 °F) MID
Engine coolant temperature is 105 °C
(221 °F) or more HI
HO2S2 HTR (B1)
HO2S2 HTR (B2)  Engine speed is below 3,600 rpm after the following conditions are met.
- Engine: After warming up
- Keeping the engine speed between 3,500 and 4,000 rpm for 1 minute and
at idle for 1 minute under no load ON
 Engine speed: Above 3,600 rpm OFF
I/P PULLY SPD  Vehicle speed: More than 20 km/h (12 MPH) Almost the same speed as the
speedometer indication
VEHICLE SPEED  Turn drive wheels and compare the CONSULT-III value with speedometer
indication. Almost the same speed as the
speedometer indication
TRVL AFTER MIL  Ignition switch: ON Vehicle has traveled after MIL has
turned ON.0 - 65,535 km
(0 - 40,7
23 mile)
SNOW MODE SW  Ignition switch: ON Snow mode switch: ON ON
Snow mode switch: OFF OFF
A/F S1 HTR(B1)
A/F S1 HTR(B2)  Engine: After warming up, idle the engine 0 - 100%
AC PRESS SEN Engine: Idle
 Both A/C switch and blower fan switch: ON
(Compressor operates) 1.0 - 4.0V
VHCL SPEED SE  Turn drive wheels and compare speedometer indication with the CON-
SULT-III value. Almost the same speed as the
CONSULT-III value
SET VHCL SPD  Engine: Running ASCD: Operating. The preset vehicle speed is dis-
played.
MAIN SW  Ignition switch: ON MAIN switch: Pressed ON
MAIN switch: Released OFF
MONITOR ITEM CONDITION SPECIFICATION
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