installation INFINITI FX35 2008 Service Manual

EC-14
DTC Confirmation Procedure ..............................1045
Diagnosis Procedure ...........................................1045
DTC P1564 ICC STEERING SWITCH ............1047
Component Description .......................................1047
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1047
On Board Diagnosis Logic ...................................1047
DTC Confirmation Procedure ..............................1048
Wiring Diagram ....................................................1049
Diagnosis Procedure ...........................................1050
Component Inspection .........................................1052
DTC P1564 ASCD STEERING SWITCH ........1053
Component Description .......................................1053
CONSULT-III Reference Va lue in Data Monitor
Mode ....................................................................
1053
On Board Diagnosis Logic ...................................1053
DTC Confirmation Procedure ..............................1054
Wiring Diagram ....................................................1055
Diagnosis Procedure ...........................................1056
Component Inspection .........................................1058
DTC P1568 ICC FUNCTION ...........................1059
On Board Diagnosis Logic ...................................1059
DTC Confirmation Procedure ..............................1059
Diagnosis Procedure ...........................................1059
DTC P1572 ICC BRAKE SWITCH .................1060
Component Description .......................................1060
CONSULT-III Reference Va lue in Data Monitor
Mode ....................................................................
1060
On Board Diagnosis Logic ...................................1060
DTC Confirmation Procedure ..............................1060
Wiring Diagram ....................................................1062
Diagnosis Procedure ...........................................1063
Component Inspection .........................................1067
DTC P1572 ASCD BRAKE SWITCH .............1068
Component Description .......................................1068
CONSULT-III Reference Va lue in Data Monitor
Mode ....................................................................
1068
On Board Diagnosis Logic ...................................1068
DTC Confirmation Procedure ..............................1068
Wiring Diagram ....................................................1070
Diagnosis Procedure ...........................................1071
Component Inspection .........................................1074
DTC P1574 ICC VEHICLE SPEED SENSOR 1075
Component Description .......................................1075
On Board Diagnosis Logic ...................................1075
DTC Confirmation Procedure ..............................1075
Diagnosis Procedure ...........................................1075
DTC P1574 ASCD VEHICLE SPEED SEN-
SOR .................................................................
1077
Component Description .......................................1077
On Board Diagnosis Logic ...................................1077
DTC Confirmation Procedure ..............................1077
Diagnosis Procedure ...........................................1077
DTC P1715 INPUT SPEED SENSOR (TUR-
BINE REVOLUTION SENSOR) ......................
1079
Description ...........................................................1079
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1079
On Board Diagnosis Logic ...................................1079
Diagnosis Procedure ............................................1079
DTC P1800 VIAS CONTROL SOLENOID
VALVE ............................................................
1080
Component Description .......................................1080
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1080
On Board Diagnosis Logic ...................................1080
DTC Confirmation Procedure ...............................1080
Wiring Diagram ....................................................1081
Diagnosis Procedure ............................................1082
Component Inspection .........................................1083
Removal and Installation ......................................1083
DTC P1805 BRAKE SWITCH ........................1084
Description ...........................................................1084
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1084
On Board Diagnosis Logic ...................................1084
DTC Confirmation Procedure ...............................1084
Wiring Diagram ....................................................1085
Diagnosis Procedure ............................................1086
Component Inspection .........................................1087
DTC P2100, P2103 THROTTLE CONTROL
MOTOR RELAY ..............................................
1088
Component Description .......................................1088
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1088
On Board Diagnosis Logic ...................................1088
DTC Confirmation Procedure ...............................1088
Wiring Diagram ....................................................1089
Diagnosis Procedure ............................................1090
DTC P2101 ELECTRIC THROTTLE CON-
TROL FUNCTIO N ...........................................
1092
Description ...........................................................1092
On Board Diagnosis Logic ...................................1092
DTC Confirmation Procedure ...............................1092
Wiring Diagram ....................................................1093
Diagnosis Procedure ............................................1094
Component Inspection .........................................1097
Removal and Installation ......................................1097
DTC P2118 THROTTLE CONTROL MOTOR 1098
Component Description .......................................1098
On Board Diagnosis Logic ...................................1098
DTC Confirmation Procedure ...............................1098
Wiring Diagram ....................................................1099
Diagnosis Procedure ............................................1100
Component Inspection .........................................1101
Removal and Installation ......................................1101
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EC-15
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DTC P2119 ELECTRIC THROTTLE CON-
TROL ACTUATOR .........................................
1102
Component Description .......................................1102
On Board Diagnosis Logic ..................................1102
DTC Confirmation Procedure ..............................1102
Diagnosis Procedure ...........................................1103
DTC P2122, P2123 APP SENSOR ................1104
Component Description .......................................1104
CONSULT-III Refe rence Value in Data Monitor
Mode ...................................................................
1104
On Board Diagnosis Logic ..................................1104
DTC Confirmation Procedure ..............................1105
Wiring Diagram ...................................................1106
Diagnosis Procedure ...........................................1107
Component Inspection ........................................1109
Removal and Installation .....................................1109
DTC P2127, P2128 APP SENSOR ................1110
Component Description .......................................1110
CONSULT-III Refe rence Value in Data Monitor
Mode ...................................................................
1110
On Board Diagnosis Logic ..................................1110
DTC Confirmation Procedure ..............................1110
Wiring Diagram ...................................................1111
Diagnosis Procedure ...........................................1112
Component Inspection ........................................1115
Removal and Installation .....................................1115
DTC P2135 TP SENSOR ...............................1116
Component Description .......................................1116
CONSULT-III Refe rence Value in Data Monitor
Mode ...................................................................
1116
On Board Diagnosis Logic ..................................1116
DTC Confirmation Procedure ..............................1116
Wiring Diagram ...................................................1117
Diagnosis Procedure ...........................................1118
Component Inspection ........................................1120
Removal and Installation .....................................1121
DTC P2138 APP SENSOR .............................1122
Component Description .......................................1122
CONSULT-III Refe rence Value in Data Monitor
Mode ...................................................................
1122
On Board Diagnosis Logic ..................................1122
DTC Confirmation Procedure ..............................1123
Wiring Diagram ...................................................1124
Diagnosis Procedure ...........................................1125
Component Inspection ........................................1128
Removal and Installation .....................................1128
DTC P2A00, P2A03 A/F SENSOR 1 ..............1129
Component Description .......................................1129
CONSULT-III Refe rence Value in Data Monitor
Mode ...................................................................
1129
On Board Diagnosis Logic ..................................1129
DTC Confirmation Procedure ..............................1129
Wiring Diagram ...................................................1131
Diagnosis Procedure ...........................................1134
Removal and Installation .....................................1138
ASCD BRAKE SWITCH .................................1139
Component Description .......................................1139
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1139
Wiring Diagram ....................................................1140
Diagnosis Procedure ...........................................1141
Component Inspection .........................................1142
ASCD INDICATOR .........................................1144
Component Description .......................................1144
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1144
Wiring Diagram ....................................................1145
Diagnosis Procedure ...........................................1145
ELECTRICAL LOAD SIGNAL .......................1147
Description ...........................................................1147
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1147
Diagnosis Procedure ...........................................1147
FUEL INJECTOR ...........................................1149
Component Description .......................................1149
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1149
Wiring Diagram ....................................................1150
Diagnosis Procedure ...........................................1151
Component Inspection .........................................1154
Removal and Installation .....................................1154
FUEL PUMP ...................................................1155
Description ...........................................................1155
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1155
Wiring Diagram ....................................................1156
Diagnosis Procedure ...........................................1157
Component Inspection .........................................1159
Removal and Installation .....................................1159
ICC BRAKE SWITCH .....................................1160
Component Description .......................................1160
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1160
Wiring Diagram ....................................................1161
Diagnosis Procedure ...........................................1162
Component Inspection .........................................1164
IGNITION SIGNAL .........................................1166
Component Description .......................................1166
Wiring Diagram ....................................................1167
Diagnosis Procedure ...........................................1172
Component Inspection .........................................1175
Removal and Installation .....................................1176
REFRIGERANT PRESSURE SENSOR .........1177
Component Description .......................................1177
Wiring Diagram ....................................................1178
Diagnosis Procedure ...........................................1179
Removal and Installation .....................................1181
SNOW MODE SWITCH ..................................1182
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EC-16
Description ...........................................................1182
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1182
Wiring Diagram ....................................................1183
Diagnosis Procedure ...........................................1183
Component Inspection .........................................1185
VARIABLE INDUCTION AIR CONTROL SYS-
TEM (VIAS) .....................................................
1187
Description ...........................................................1187
CONSULT-III Reference Va lue in Data Monitor
Mode ....................................................................
1188
Wiring Diagram ....................................................1189
Diagnosis Procedure ...........................................1190
Component Inspection .........................................1193
Removal and Installation .....................................1193
MIL AND DATA LINK CONNECTOR .............1194
Wiring Diagram ....................................................1194
SERVICE DATA AND SPECIFICATIONS
(SDS) ..............................................................
1196
Fuel Pressure .......................................................1196
Idle Speed and Ignition Timing ............................1196
Calculated Load Value .........................................1196
Mass Air Flow Sensor ..........................................1196
Intake Air Temperature Sensor ............................1196
Engine Coolant Temperature Sensor ..................1196
Fuel Tank Temperature Sensor ...........................1196
Crankshaft Position Sensor (POS) ......................1197
Camshaft Position Sensor (PHASE) ....................1197
A/F Sensor 1 Heater ............................................1197
Heated Oxygen sensor 2 Heater .........................1197
Throttle Control Motor ..........................................1197
Fuel Injector .........................................................1197
Fuel Pump ............................................................1197
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PRECAUTIONSEC-25
< SERVICE INFORMATION > [VQ35DE]
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PRECAUTIONS
Precaution for Supplemental
Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612915
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
 To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
 Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
Precaution for Procedur e without Cowl Top CoverINFOID:0000000001612935
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
On Board Diagnosis (OBD) System of Engine and A/TINFOID:0000000001325891
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
 Be sure to turn the ignition switch OFF and di sconnect the negative battery cable before any repair
or inspection work. The op en/short circuit of related switches, sensors, solenoid valves, etc. will
cause the MIL to light up.
 Be sure to connect and lock the connectors secure ly after work. A loose (unlocked) connector will
cause the MIL to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
 Certain systems and components, especially those related to OBD, may use a new style slide-lock-
ing type harness connector. For descripti on and how to disconnect, refer to PG-68
.
 Be sure to route and secure the harnesses properly after work. The interference of the harness with
a bracket, etc. may cause the MIL to li ght up due to the short circuit.
 Be sure to connect rubber tubes properly afte r work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to the malfuncti on of the EVAP system or fuel injection system,
etc.
 Be sure to erase the unnecessary ma lfunction information (repairs completed) from the ECM and
TCM (Transmission control module) before returning the vehicle to the customer.
PIIB3706J
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EC-28
< SERVICE INFORMATION >[VQ35DE]
PRECAUTIONS

B1 indicates the bank 1, B2 indicates the bank 2 as shown in
the figure.
 Do not operate fuel pump when there is no fuel in lines.
 Tighten fuel hose clamps to the specified torque.
 Do not depress accelerator pedal when starting.
 Immediately after starting, do not rev up engine unnecessar-
ily.
 Do not rev up engine just prior to shutdown.
 When installing C.B. ham radio or a mobile phone, be sure to
observe the following as it m ay adversely affect electronic
control systems depending on installation location.
- Keep the antenna as far as possi ble from the electronic con-
trol units.
- Keep the antenna feeder line more than 20 cm (8 in) away
from the harness of electronic controls.
Do not let them run parallel for a long distance.
- Adjust the antenna and feeder line so that the standing-wave
radio can be kept smaller.
- Be sure to ground the radio to vehicle body.
SEC893C
PBIB1569E
SEF709Y
SEF708Y
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EC-44
< SERVICE INFORMATION >[VQ35DE]
EVAPORATIVE EMISSION SYSTEM
Positive pressure is delivered to the EVAP system through the EVAP
service port. If fuel vapor leak
age in the EVAP system occurs, use a
leak detector to locate the leak.
Removal and InstallationINFOID:0000000001325906
EVAP CANISTER
Tighten EVAP canister as shown in the figure.
EVAP CANISTER VENT CONTROL VALVE
1. Turn EVAP canister vent control valve counterclockwise.
2. Remove the EVAP canister vent control valve.
Always replace O-ring with a new one.
How to Detect Fuel Vapor LeakageINFOID:0000000001325907
CAUTION:
 Never use compressed air or a high pressure pump.
 Do not exceed 4.12 kPa (0.042 kg/cm
2, 0.6 psi) of pressure in EVAP system.
NOTE:
 Do not start engine.
 Improper installation of EVAP service port adapt er to the EVAP service port may cause a leak.
WITH CONSULT-III
1. Attach the EVAP service port adapter securely to the EVAP service port.
2. Also attach the pressure pump and hose to the EVAP service port adapter.
SEF462UA
PBIB1029E
PBIB1030E
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EC-46
< SERVICE INFORMATION >[VQ35DE]
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
ON BOARD REFUELING VA
POR RECOVERY (ORVR)
System DescriptionINFOID:0000000001325908
From the beginning of refueling, the air and vapor insi de the fuel tank go through refueling EVAP vapor cut
valve and EVAP/ORVR line to the EVAP canister. The vapor is absorbed by the EVAP canister and the air is
released to the atmosphere.
When the refueling has reached the full level of the fuel tank, the refueling EVAP vapor cut valve is closed and
refueling is stopped because of auto shut-off. The vapor which was absorbed by the EVAP canister is purged
during driving.
WARNING:
When conducting inspections below, be sure to observe the following:
 Put a “CAUTION: FLAMMABLE” sign in workshop.
 Do not smoke while servicing fuel system. Keep open flames and sparks away from work area.
 Be sure to furnish the workshop with a CO
2 fire extinguisher.
CAUTION:
 Before removing fuel line parts, carry out the following procedures:
- Put drained fuel in an explosion-pr oof container and put lid on securely.
- Release fuel pressure from fuel line. Refer to EC-87, "
Fuel Pressure Check".
- Disconnect negative battery cable.
 Always replace O-ring when the fuel gauge retainer is removed.
 Do not kink or twist hose and tube when they are installed.
 Do not tighten hose and clamps excessively to avoid damaging hoses.
 After installation, run engine an d check for fuel leaks at connection.
 Do not attempt to top off the fuel tank afte r the fuel pump nozzle shuts off automatically.
Continued refueling may cause fu el overflow, resulting in fuel spray and possibly a fire.
Diagnosis ProcedureINFOID:0000000001325909
SYMPTOM: FUEL ODOR FROM EVAP CANISTER IS STRONG.
1.CHECK EVAP CANISTER
1. Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
2. Weigh the EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
The weight should be l ess than 2.1 kg (4.6 lb).
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
PBIB1068E
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BASIC SERVICE PROCEDUREEC-83
< SERVICE INFORMATION > [VQ35DE]
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Without CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed. Refer to EC-84, "
Idle Speed and Ignition Timing Check".
OK or NG
OK >> GO TO 15.
NG >> GO TO 17.
15.CHECK IGNITION TIMING AGAIN
1. Run engine at idle.
2. Check ignition timing with a timing light. Refer to EC-84, "
Idle Speed and Ignition Timing Check".
OK or NG
OK >> GO TO 19.
NG >> GO TO 16.
16.CHECK TIMING CHAIN INSTALLATION
Check timing chain installation. Refer to EM-64
.
OK or NG
OK >> GO TO 17.
NG >> 1. Repair the timing chain installation. 2. GO TO 4.
17.DETECT MALFUNCTIONING PART
Check the following.
 Check camshaft position s ensor (PHASE) and circuit.
Refer to EC-324
.
 Check crankshaft position sensor (POS) and circuit.
Refer to EC-319
.
OK or NG
OK >> GO TO 18.
NG >> 1. Repair or replace. 2. GO TO 4.
18.CHECK ECM FUNCTION
1. Substitute another known-good ECM to check ECM f unction. (ECM may be the cause of an incident, but
this is a rare case.)
2. Perform initialization of IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs.
Refer to BL-185
.
>> GO TO 4.
19.INSPECTION END
Did you replace the ECM, referring this Basic Inspection procedure?
Ye s o r N o
Ye s > > 1 . P e r f o r m EC-84, "VIN Registration".
2. INSPECTION END
No >> INSPECTION END
650
± 50 rpm (in P or N position)
15 ± 5 ° BTDC (in P or N position)
PBIB1602E
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BASIC SERVICE PROCEDUREEC-87
< SERVICE INFORMATION > [VQ35DE]
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1.
Check that throttle valve is fully closed.
2. Check PCV valve operation.
3. Check that downstream of throttl e valve is free from air leakage.
4. When the above three items check out OK, engine component parts and their installation condi-
tion are questionable. Check and el iminate the cause of the incident.
It is useful to perform EC-131
.
5. If any of the following conditi ons occur after the engine has started, eliminate the cause of the
incident and perform Idle Air Vo lume Learning all over again:
 Engine stalls.
 Erroneous idle.
Fuel Pressure CheckINFOID:0000000001325926
FUEL PRESSURE RELEASE
With CONSULT-III
1. Turn ignition switch ON.
2. Perform “FUEL PRESSURE RELEASE” in “WORK SUPPORT” mode with CONSULT-III.
3. Start engine.
4. After engine stalls, crank it two or three times to release all fuel pressure.
5. Turn ignition switch OFF.
Without CONSULT-III
1. Remove fuel pump fuse located in IPDM E/R.
2. Start engine.
3. After engine stalls, crank it two or three times to release all fuel pressure.
4. Turn ignition switch OFF.
5. Reinstall fuel pump fuse after servicing fuel system.
FUEL PRESSURE CHECK
CAUTION:
Before disconnecting fuel line, release fuel pressure from fuel line to eliminate danger.
NOTE:
 Prepare pans or saucers under the disconnected fuel line because the fuel may spill out. The fuel
pressure cannot be completely released because S50 models do not have fuel return system.
 Use Fuel Pressure Gauge Kit (J-44321) to check fuel pressure.
1. Release fuel pressure to zero. Refer to “FUEL PRESSURE RELEASE”.
2. Install the inline fuel quick disconnected fitting between fuel damper and fuel injector tube.
3. Connect the fuel pressure test gauge (quick connector adapter hose) to the inline fuel quick disconnected fitting.
4. Turn ignition switch ON and check for fuel leakage.
5. Start engine and check for fuel leakage.
6. Read the indication of fuel pressure gauge.
7. If result is unsatisfactory, go to next step.
8. Check the following.  Fuel hoses and fuel tubes for clogging
 Fuel filter for clogging
PBIB1603E
At idling: Approximately 350 kPa (3.57 kg/cm2, 51 psi)PBIB1571E
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EC-136
< SERVICE INFORMATION >[VQ35DE]
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
OK >>
INSPECTION END
NG >> GO TO 15.
15.DISCONNECT AND RECONNE CT ECM HARNESS CONNECTOR
1. Stop the engine.
2. Disconnect ECM harness connector. Check pin terminal and connector for damage, and then reconnect it.
>> GO TO 16.
16.CHECK “A/F ALPHA-B1”, “A/F ALPHA-B2”
1. Start engine.
2. Select “A/F ALPHA-B1”, “A/F AL PHA-B2” in “SPEC” of “DATA MONITOR” mode, and make sure that the
each indication is within the SP value.
OK or NG
OK >> INSPECTION END
NG >> Detect malfunctioning part according to EC-96, "
Symptom Matrix Chart".
17.CHECK “B/FUEL SCHDL”
Select “B/FUEL SCHDL” in “SPEC” of “DATA MONITOR” mode, and make sure that the indication is within the
SP value.
OK or NG
OK >> INSPECTION END
NG (More than the SP value)>>GO TO 18.
NG (Less than the SP value)>>GO TO 25.
18.DETECT MALFUNCTIONING PART
1. Check for the cause of large engine friction. Refer to the following.
- Engine oil level is too high
- Engine oil viscosity
- Belt tension of power steering, alternat or, A/C compressor, etc. is excessive
- Noise from engine
- Noise from transmission, etc.
2. Check for the cause of insufficient combustion. Refer to the following.
- Valve clearance malfunction
- Intake valve timing control function malfunction
- Camshaft sprocket installation malfunction, etc.
>> Repair or replace malfunctioning part, and then GO TO 30.
19.CHECK INTAKE SYSTEM
Check for the cause of uneven air flow through mass air flow sensor. Refer to the following.
 Crushed air ducts
 Malfunctioning seal of air cleaner element
 Uneven dirt of air cleaner element
 Improper specification of intake air system
OK or NG
OK >> GO TO 21.
NG >> Repair or replace malfunctioning part, and then GO TO 20.
20.CHECK “A/F ALPHA-B1”, “A/F ALPHA-B2”, AND “B/FUEL SCHDL”
Select “A/F ALPHA-B1”, “A/F ALPHA-B2”, and “B/F UEL SCHDL” in “SPEC” of “DATA MONITOR” mode, and
make sure that the each indication is within the SP value.
OK or NG
OK >> INSPECTION END
NG (“B/FUEL SCHDL” is more, “A/F ALPHA-B1”, “A/F ALPHA-B2” are less than the SP value)>>GO TO 21.
21.DISCONNECT AND RECONNECT MASS AIR FLOW SENSOR HARNESS CONNECTOR
1. Stop the engine.
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