reset INFINITI FX35 2005 Owner's Manual

EC-722
[VK45DE]
ENGINE CONTROL SYSTEM
Revision: 2005 July 2005 FX
Multiport Fuel Injection (MFI) SystemABS00E3Y
INPUT/OUTPUT SIGNAL CHART
*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). The amount of fuel injected is a program value in the
ECM memory. The program value is preset by engine operating conditions. These conditions are determined
by input signals (for engine speed and intake air) from the crankshaft position sensor (POS), camshaft position
sensor (PHASE) and the mass air flow sensor.
VARIOUS FUEL INJECTION INCREASE/DECREASE COMPENSATION
In addition, the amount of fuel injected is compensated 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
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS) Engine speed*
3
Piston position
Fuel injection
& mixture ratio
control Fuel injector
Camshaft position sensor (PHASE)
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Heated oxygen 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
Battery Battery voltage*
3
Knock sensor Engine knocking condition
Power steering pressure sensor Power steering operation
Heated oxygen sensor 2*
1Density of oxygen in exhaust gas
ABS actuator and electric unit (control unit)*
2VDC/TCS operation command
Air conditioner switch*
2Air conditioner operation
Wheel sensor*
2Vehicle speed

EC-764
[VK45DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2005 July 2005 FX

Be careful not to erase the stored memory before starting trouble diagnoses.
DIAGNOSTIC TEST MODE II — HEATED OXYGEN SENSOR 1 MONITOR
In this mode, the MIL displays the condition of the fuel mixture (lean or rich) which is monitored by the heated
oxygen sensor 1.
*: Maintains conditions just before switching to open loop.
To check the heated oxygen sensor 1 function, start engine in the Diagnostic Test Mode II and warm it up until
engine coolant temperature indicator points to the middle of the gauge.
Next run engine at about 2,000 rpm for about 2 minutes under no-load conditions. Then make sure that the
MIL comes ON more than 5 times within 10 seconds with engine running at 2,000 rpm under no-load.
OBD System Operation ChartABS00E4B
RELATIONSHIP BETWEEN MIL, 1ST TRIP DTC, DTC, AND DETECTABLE ITEMS

When a malfunction is detected for the first 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 consecutive 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-745, "
Tw o Tr i p D e t e c t i o n
Logic" .

The MIL will go off after the vehicle is driven 3 times 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)
without the same malfunction recurring (except for Misfire and Fuel Injection System). For Misfire and
Fuel Injection System, the DTC and freeze frame data will be stored until the vehicle is driven 80 times
(driving pattern C) without the same malfunction recurring. The “TIME” in “SELF-DIAGNOSTIC
RESULTS” mode of CONSULT-II will count the number of times the vehicle is driven.

The 1st trip DTC is not displayed when the self-diagnosis results in OK for the 2nd trip.
SUMMARY CHART
For details about patterns B and C under “Fuel Injection System” and “Misfire”, see EC-766 .
For details about patterns A and B under “Other”, see EC-768
.
*1: Clear timing is at the moment OK is detected.
*2: Clear timing is when the same malfunction is detected in the 2nd trip. MIL Fuel mixture condition in the exhaust gas Air fuel ratio feedback control condition
ON Lean Closed loop system
OFF Rich
*Remains ON or OFF Any condition Open loop system
Items Fuel Injection System Misfire Other
MIL (goes off) 3 (pattern B) 3 (pattern B) 3 (pattern B)
DTC, Freeze Frame Data (no
display) 80 (pattern C) 80 (pattern C) 40 (pattern A)
1st Trip DTC (clear) 1 (pattern C), *1 1 (pattern C), *1 1 (pattern B)
1st Trip Freeze Frame Data
(clear) *1, *2 *1, *2 1 (pattern B)

EC-830
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
HO2S1 HTR (B1)
[ON/OFF]
Indicates [ON/OFF] condition of heated
oxygen sensor 1 heater determined by
ECM according to the input signals.
HO2S1 HTR (B2)
[ON/OFF]
HO2S2 HTR (B1)
[ON/OFF]

Indicates [ON/OFF] condition of heated
oxygen sensor 2 heater determined by
ECM according to the input signals.
HO2S2 HTR (B2)
[ON/OFF]
I/P PULLY SPD
[rpm]

Indicates the engine speed computed
from the turbine revolution sensor signal.
VEHICLE SPEED
[km/h] or [MPH]

The vehicle speed computed from the
vehicle speed signal sent from TCM is
displayed.
IDL A/V LEARN
[YET/CMPLT]

Display the condition of idle air volume
learning
YET: Idle air volume learning has not
been performed 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.
O2SEN HTR DTY
[%]

Indicates the heated oxygen sensor 1
heater control value computed by the
ECM according to the input signals.
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 combina-
tion meter 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 CAN-
CEL switch signal.
RESUME/ACC SW
[ON/OFF]

Indicates [ON/OFF] condition from
RESUME/ACCELERATE 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.
DIST SW
[ON/OFF]

Indicates [ON/OFF] condition from DIS-
TANCE switch signal.
CRUISE LAMP
[ON/OFF]

Indicates [ON/OFF] condition of CRUISE
lamp determined by the ECM according
to the input signals.
Monitored item
[Unit] ECM
INPUT SIG-
NALS MAIN
SIG-
NALS Description Remarks

TROUBLE DIAGNOSIS EC-835
[VK45DE]
C
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M A
EC
Revision: 2005 July 2005 FX
Operation
1. “AUTO TRIG”

While trying to detect the DTC/1st trip DTC by performing the “DTC Confirmation Procedure”, be sure
to select to “DATA MONITOR (AUTO TRIG)” mode. You can confirm the malfunction at the moment it is
detected.

While narrowing down the possible causes, CONSULT-II should be set in “DATA MONITOR (AUTO
TRIG)” mode, especially in case the incident is intermittent.
When you are inspecting the circuit by gently shaking (or twisting) the suspicious connectors, compo-
nents and harness in the “DTC Confirmation Procedure”, the moment a malfunction is found the DTC/
1st trip DTC will be displayed. (Refer to “INCIDENT SIMULATION TESTS” in GI-27, "
How to Perform
Efficient Diagnosis for an Electrical Incident" .)
2. “MANU TRIG”

If the malfunction is displayed as soon as “DATA MONITOR” is selected, reset CONSULT-II to “MANU
TRIG”. By selecting “MANU TRIG” you can monitor and store the data. The data can be utilized for fur-
ther diagnosis, such as a comparison with the value for the normal operating condition.
Generic Scan Tool (GST) FunctionABS007I8
DESCRIPTION
Generic Scan Tool (OBDII scan tool) complying with SAE J1978 has
8 different functions explained below.
ISO9141 is used as the protocol.
The name “GST” or “Generic Scan Tool” is used in this service man-
ual.
PBIB0197E
SEF139P

EC-836
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
FUNCTION
INSPECTION PROCEDURE
1. Turn ignition switch OFF.
2. Connect “GST” to data link connector, which is located under LH dash panel near the hood opener handle.
Diagnostic test mode Function
Service $01 READINESS TESTS This mode gains access to current emission-related data values, including analog inputs
and outputs, digital inputs and outputs, and system status information.
Service $02 (FREEZE DATA) This mode gains access to emission-related data value which were stored by ECM during
the freeze frame. For details, refer to EC-751, "
FREEZE FRAME DATA AND 1ST TRIP
FREEZE FRAME DATA" .
Service $03 DTCs This mode gains access to emission-related power train trouble codes which were stored
by ECM.
Service $04 CLEAR DIAG INFO This mode can clear all emission-related diagnostic information. This includes:

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 mode accesses the results of on board diagnostic monitoring tests of specific com-
ponents/systems that are not continuously monitored.
Service $07 (ON BOARD TESTS) This mode enables the off board test drive to obtain test results for emission-related pow-
ertrain components/systems that are continuously monitored during normal driving condi-
tions.
Service $08 — This mode can close EVAP system in ignition switch ON position (Engine stopped). When
this mode is performed, EVAP canister vent control valve can be closed.
In the following conditions, this mode 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 mode enables the off-board test device to request specific vehicle information such
as Vehicle Identification Number (VIN) and Calibration IDs.
PBIB1503E

EC-840
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
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 94
°C
(201 °F) or less OFF
Engine coolant temperature is between
95 °C (203 °F) and 104 °C (219 °F) MID
Engine coolant temperature is 105 °C
(221 °F) or more HI
HO2S1 HTR (B1)
HO2S1 HTR (B2)

Engine: After warming up

Engine speed: Below 3,000 rpm ON

Engine speed: Above 3,000 rpm OFF
HO2S2 HTR (B1)
HO2S2 HTR (B2)

Engine speed: 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 tachometer indication
VEHICLE SPEED

Turn drive wheels and compare CONSULT-II value with the 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 - 40,723 miles)
SNOW MODE SW

Ignition switch: ON Snow mode switch: ON ON
Snow mode switch: OFF OFF
O2SEN HTR DTY

Engine coolant temperature when engine started: More than 80 °C (176 °F)

Engine speed: Below 3,000 rpm Approx. 50%
AC PRESS SEN

Ignition switch: ON (Engine stopped) Approx. 0V

Engine: Idle

Air conditioner switch: OFF 1.0 - 4.0V
VHCL SPEED SE

Turn drive wheels and compare CONSULT-II value with the speedometer
indication. Almost the same speed as
the speedometer indication
SET VHCL SPD

Engine: Running ASCD: Operating The preset vehicle speed is
displayed
MAIN SW

Ignition switch: ON MAIN switch: Pressed ON
MAIN switch: Released OFF
CANCEL SW

Ignition switch: ON CANCEL switch: Pressed ON
CANCEL switch: Released OFF
RESUME/ACC SW

Ignition switch: ON RESUME/ACCELERATE switch:
Pressed ON
RESUME/ACCELERATE switch:
Released OFF
SET SW

Ignition switch: ON SET/COAST switch: Pressed ON
SET/COAST switch: Released OFF
BRAKE SW1
(ICC/ASCD brake
switch)

Ignition switch: ON Brake pedal: Fully released ON
Brake pedal: Slightly depressed OFF
BRAKE SW2
(Stop lamp switch)

Ignition switch: ON Brake pedal: Fully released OFF
Brake pedal: Slightly depressed ON
MONITOR ITEM CONDITION SPECIFICATION

GW-78
FRONT DOOR GLASS AND REGULATOR
Revision: 2005 July 2005 FX
Inspection after Removal
Check the regulator assembly for the following. If a malfunction is
detected, replace or grease it.

Wire wear

Regulator deformation

Grease condition for each sliding part
The arrows in the figure show the application points of the body
grease.
Disassembly and assemblyAIS006D4
REGULATOR ASSEMBLY
Disassembly
Remove the power window motor and guide rail from the module
assembly.
Assembly
Assemble in the reverse order of disassembly.
Inspection after InstallationAIS006D3
SETTING OF LIMIT SWITCH
Setting of Limit Switch
If any of the following work has been done, set the limit switch (integrated in the motor).

Removal and installation of the motor from the regulator.

Operate the regulators as a unit.

Installation of the new glass.

Installation of the new glass run.
Resetting
After installing each component to the vehicle, follow the steps below.
1. Raise the glass to the top position.
2. While pressing and holding the reset switch, lower the glass to the bottom position.
3. Release the reset switch, and check the reset switch returns to the original position, and then raise the glass to the top position.
CAUTION:
Do not operate the glass automatically to raise the glass to
the top position.
FITTING INSPECTION

Make sure the glass is securely fit into the glass run groove.
PIIA4730E
PIIA4731E
PIIA4732E

GW-82
REAR DOOR GLASS AND REGULATOR
Revision: 2005 July 2005 FX
10. Remove the power window motor mounting bolts and nuts, and
remove the regulator from the panel.
11. Disconnect the connector for the regulator assembly.
Installation
Install in the reverse order of removal.
Inspection after Removal
Check the regulator assembly for the following. If a malfunction is
detected, replace or grease it.

Gear wear

Regulator deformation

Spring damage

Grease condition for each sliding part
The arrows in the figure show the application points of the body
grease.
Disassembly and assemblyAIS0068T
REGULATOR ASSEMBLY
Disassembly
Remove the power window motor from the regulator assembly.
Assembly
Assemble in the reverse order of disassembly.
Inspection after InstallationAIS006D2
SETTING OF LIMIT SWITCH (WITH ANTI-PINCH SYSTEM ONLY)
If any of the following work has been done, set the limit switch (integrated in the motor).

Removal and installation of the motor from the regulator.

Operate the regulators as a unit.

Installation of the new glass.

Installation of the new glass run.
Resetting
After installing each component to the vehicle, follow the steps below.
1. Raise the glass to the top position.
2. While pressing and holding the reset switch, lower the glass to the bottom position.
3. Release the reset switch, and check the reset switch returns to the original position, and then raise the glass to the top position.
CAUTION:
Do not operate the glass automatically to raise the glass to
the top position.
PIIA4736E
PIIA4935E
PIIA4737E

INSIDE MIRROR GW-85
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GW
Revision: 2005 July 2005 FX
Removal and InstallationAIS003A9
REMOVAL
1. Remove inside mirror cover.
2. Remove inside mirror finisher.
3. Remove TORX bolt (T20) of the mirror base.
4. Slide the mirror base upward to remove.
5. Disconnect the connector.
INSTALLATION
Install in the reverse order of removal.
COMPASS
For reset of compass, refer to DI-38, "System Description" .
CAUTION:
Apply Genuine Mirror Adhesive or equivalent to bonding surface of mounting bracket. Refer to GI-48,
"RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS" .
1. Inside mirror finisher 2. Inside mirror 3. TORX bolt (T20)
4. Inside mirror cover
PIIA4934E

LAN-20
[CAN]
TROUBLE DIAGNOSES WORK FLOW
Revision: 2005 July 2005 FX
DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN
FOR DISPLAY CONTROL UNIT
Display Results (Present)

OK: Normal

NG: Malfunction

UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.
Display Results: Error Counter (Reference)

0: It is normal now.

1 ~ 50: Displays when it finds malfunction in the past even if it is normal or there is a malfunction at present. Also, display s when diag-
nosis is not performed. It increase like 0 →1→ 2...49 →50 after returning to the normal condition whenever IGN OFF →ON. If it is over
50, it is fixed to 50 until the self-diagnostic results are erased. Keep this condition until resetting it.
SKIB0645E
Unit name Diagnosis item Description “CAN DIAG
SUPPORT
MONITOR”
screen Error
counter
(Reference)
Display control unit CAN COMM Make sure that microcomputer in ECU works normally. OK/NG
0/1~50
CAN CIRC 1 Make sure of normal transmission. OK/UNKWN
CAN CIRC 2 Make sure of normal reception from BCM. OK/UNKWN
CAN CIRC 3 Make sure of normal reception from ECM. OK/UNKWN
CAN CIRC 4 CAN CIRC 4 is not diagnosed. OK/UNKWN
CAN CIRC 5 Make sure of normal reception from unified meter and A/C amp. OK/UNKWN
CAN CIRC 6 CAN CIRC 6 is not diagnosed. OK/UNKWN
CAN CIRC 7 Make sure of normal reception from IPDM E/R. OK/UNKWN
CAN CIRC 8 CAN CIRC 8 is not diagnosed. OK/UNKWN
CAN CIRC 9 CAN CIRC 9 is not diagnosed. OK/UNKWN