2007 INFINITI M35 sensor

EC-724
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INDEX FOR DTC
Revision: 2007 April2007 M35/M45
FUEL LEV SEN SLOSH P0460 0460EC-1169
FUEL SYS-LEAN-B1 P0171 0171EC-1022
FUEL SYS-LEAN-B2 P0174 0174EC-1022
FUEL SYS-RICH-B1 P0172 0172EC-1033
FUEL SYS-RICH-B2 P0175 0175EC-1033
HLR/C SOL/CIRC P1767 1767AT-159
HLR/C SOL FNCTN P1769 1769AT-161
HO2S2 HTR (B1) P0037 0037EC-890
HO2S2 HTR (B1) P0038 0038EC-890
HO2S2 HTR (B2) P0057 0057EC-890
HO2S2 HTR (B2) P0058 0058EC-890
HO2S2 (B1) P0137 0137EC-987
HO2S2 (B1) P0138 0138EC-998
HO2S2 (B1) P0139 0139EC-1011
HO2S2 (B2) P0157 0157EC-987
HO2S2 (B2) P0158 0158EC-998
HO2S2 (B2) P0159 0159EC-1011
I/C SOLENOID/CIRC P1752 1752AT-147
I/C SOLENOID FNCTN P1754 1754AT-149
IAT SEN/CIRCUIT P0112 0112EC-922
IAT SEN/CIRCUIT P0113 0113EC-922
IAT SENSOR P0127 0127EC-942
ICC COMMAND VALUE*6P1568 1568EC-1279
INT/V TIM CONT-B1 P0011 0011EC-870
INT/V TIM CONT-B2 P0021 0021EC-870
INT/V TIM V/CIR-B1 P0075 0075EC-899
INT/V TIM V/CIR-B2 P0081 0081EC-899
INTK TIM S/CIRC-B1 P1140 1140EC-1203
INTK TIM S/CIRC-B2 P1145 1145EC-1203
IN PULY SPEED P1715 1715EC-1301
ISC SYSTEM P0506 0506EC-1177
ISC SYSTEM P0507 0507EC-1179
KNOCK SEN/CIRC-B1 P0327 0327EC-1070
KNOCK SEN/CIRC-B1 P0328 0328EC-1070
KNOCK SEN/CIRC-B2 P0332 0332EC-1070
KNOCK SEN/CIRC-B2 P0333 0333EC-1070
L/PRESS SOL/CIRC P0745 0745AT-130
LC/B SOLENOID/CIRC P1772 1772AT-163
LC/B SOLENOID FNCT P1774 1774AT-165
MAF SEN/CIRCUIT P0101 0101EC-906
MAF SEN/CIRCUIT P0102 0102EC-915
MAF SEN/CIRCUIT P0103 0103EC-915
Items
(CONSULT-II screen terms)DTC*
1
Reference page
CONSULT-II
GST*
2ECM*3

INDEX FOR DTC
EC-725
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Revision: 2007 April2007 M35/M45
*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by SAE J2012.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
*4: The troubleshooting for this DTC needs CONSULT-II.
*5: When the fail-safe operations for both self-diagnoses occur, the MIL illuminates.
*6: Models with ICC.MULTI CYL MISFIRE P0300 0300EC-1061
NATS MALFUNCTION P1610 - P1615 1610 - 1615EC-755
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0000 —
P-N POS SW/CIRCUIT P0850 0850EC-1198
PNP SW/CIRC P0705 0705AT- 11 3
PURG VOLUME CONT/V P0443 0443EC-1108
PURG VOLUME CONT/V P0444 0444E C - 111 6
PURG VOLUME CONT/V P0445 0445E C - 111 6
PW ST P SEN/CIRC P0550 0550EC-1181
SENSOR POWER/CIRC P0643 0643EC-1193
TCC SOLENOID/CIRC P0740 0740AT-126
TCM P0700 0700AT- 11 2
TCS/CIRC P1212 1212EC-1213
TCS C/U FUNCTN P1211 1211EC-1212
THERMSTAT FNCTN P0128 0128EC-945
TP SENSOR P2135 2135EC-1350
TP SEN 1/CIRC P0222 0222EC-1054
TP SEN 1/CIRC P0223 0223EC-1054
TP SEN 2/CIRC P0122 0122EC-932
TP SEN 2/CIRC P0123 0123EC-932
TURBINE SENSOR P0717 0717AT- 11 7
TW CATALYST SYS-B1 P0420 0420EC-1089
TW CATALYST SYS-B2 P0430 0430EC-1089
VEH SPD SEN/CIR AT*5P0720 0720AT- 11 9
VEH SPEED SEN/CIRC*5P0500 0500EC-1175
VENT CONTROL VALVE P0447 0447EC-1123
VENT CONTROL VALVE P0448 0448EC-1130
VIAS S/V CIRC P1800 1800EC-1302
Items
(CONSULT-II screen terms)DTC*
1
Reference page
CONSULT-II
GST*
2ECM*3

EC-726
[VK45DE]
PRECAUTIONS
Revision: 2007 April2007 M35/M45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NBS0059C
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity 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 SRS and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, 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 per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Procedures without Cowl Top CoverNBS0059D
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
On Board Diagnostic (OBD) System of Engine and A/TNBS0059E
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 disconnect the negative battery cable before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves,
etc. will cause the MIL to light up.

Be sure to connect and lock the connectors securely 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-
locking type harness connector. For description and how to disconnect, refer to PG-104, "
HAR-
NESS CONNECTOR" .

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 light up due to the short circuit.

Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to the malfunction of the EVAP system or fuel injection system,
etc.

Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM and
TCM (Transmission control module) before returning the vehicle to the customer.
PIIB3706J

EC-728
[VK45DE]
PRECAUTIONS
Revision: 2007 April2007 M35/M45

Before replacing ECM, perform ECM Terminals and Refer-
ence Value inspection and make sure ECM functions prop-
erly. Refer to EC-817, "
ECM Terminals and Reference Value"
.

Handle mass air flow sensor carefully to avoid damage.

Do not clean mass air flow sensor with any type of deter-
gent.

Do not disassemble electric throttle control actuator.

Even a slight leak in the air intake system can cause seri-
ous incidents.

Do not shock or jar the camshaft position sensor (PHASE),
crankshaft position sensor (POS).

After performing each TROUBLE DIAGNOSIS, perform DTC
Confirmation Procedure or Overall Function Check.
The DTC should not be displayed in the DTC Confirmation
Procedure if the repair is completed. The Overall Function
Check should be a good result if the repair is completed.

When measuring ECM signals with a circuit tester, never
allow the two tester probes to contact.
Accidental contact of probes will cause a short circuit and
damage the ECM power transistor.

Do not use ECM ground terminals when measuring input/
output voltage. Doing so may result in damage to the ECM's
transistor. Use a ground other than ECM terminals, such as
the ground.
MEF040D
SEF217U
SEF348N

PRECAUTIONS
EC-729
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Revision: 2007 April2007 M35/M45

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.
–Fuel level sensor unit and fuel pump (1)
–Fuel pressure regulator (2)
–Fuel tank temperature sensor (3)

Tighten fuel hose clamps to the specified torque.

Do not depress accelerator pedal when starting.

Immediately after starting, do not rev up engine unneces-
sarily.

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 may adversely affect elec-
tronic control systems depending on installation location.
–Keep the antenna as far as possible from the electronic
control 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.
PBIB1144E
PBIB2707E
SEF709Y
SEF708Y

EC-730
[VK45DE]
PREPARATION
Revision: 2007 April2007 M35/M45
PREPARATIONPFP:00002
Special Service ToolsNBS0059G
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool nameDescription
EG17650301
(J-33984-A)
Radiator cap tester
adapterAdapting radiator cap tester to radiator cap and
radiator filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
KV10117100
(J-36471-A)
Heated oxygen
sensor wrenchLoosening or tightening heated oxygen sensor 2
with 22 mm (0.87 in) hexagon nut
KV10114400
(J-38365)
Heated oxygen
sensor wrenchLoosening or tightening air fuel ratio sensor 1
a: 22 mm (0.87 in)
(J-44321)
Fuel pressure gauge
kitChecking fuel pressure
KV109E0010
(J-46209)
Break-out boxMeasuring the ECM signals with a circuit tester
KV109E0080
(J-45819)
Y-cable adapterMeasuring the ECM signals with a circuit tester
S-NT564
S-NT379
S-NT636
LEC642
S-NT825
S-NT826

PREPARATION
EC-731
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Revision: 2007 April2007 M35/M45
Commercial Service ToolsNBS0059H
Tool name
(Kent-Moore No.)Description
Leak detector
i.e.: (J-41416)Locating the EVAP leak
EVAP service port
adapter
i.e.: (J-41413-OBD)Applying positive pressure through EVAP service
port
Fuel filler cap adapter
i.e.: (MLR-8382)Checking fuel tank vacuum relief valve opening
pressure
Socket wrench Removing and installing engine coolant
temperature sensor
Oxygen sensor thread
cleaner
i.e.: (J-43897-18)
(J-43897-12)Reconditioning the exhaust system threads
before installing a new oxygen sensor. Use with
anti-seize lubricant shown below.
a: 18 mm diameter with pitch 1.5 mm for
Zirconia Oxygen Sensor
b: 12 mm diameter with pitch 1.25 mm for
Titania Oxygen Sensor
Anti-seize lubricant
i.e.: (Permatex
TM
133AR or equivalent
meeting MIL
specification MIL-A-
907)Lubricating oxygen sensor thread cleaning tool
when reconditioning exhaust system threads.
S-NT703
S-NT704
S-NT815
S-NT705
AEM488
S-NT779

ENGINE CONTROL SYSTEM
EC-733
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Revision: 2007 April2007 M35/M45
Multiport Fuel Injection (MFI) SystemNBS0059J
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
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
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)
VDC/TCS operation command*
2
Air conditioner switch
Air conditioner operation*2
Wheel sensor
Vehicle speed*2