fuel INFINITI M35 2006 Factory Workshop Manual

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ECA
Revision: 2006 January2006 M35/M45 FUEL PUMP ..........................................................1427
Description ..........................................................1427
CONSULT-II Reference Value in Data Monitor Mode
1427
Wiring Diagram ...................................................1428
Diagnostic Procedure ..........................................1429
Component Inspection ........................................1433
Removal and Installation .....................................1433
REFRIGERANT PRESSURE SENSOR ................1434
Component Description .......................................1434
Wiring Diagram ...................................................1435
Diagnostic Procedure ..........................................1436
Removal and Installation .....................................1438
ELECTRICAL LOAD SIGNAL ...............................1439
Description ..........................................................1439
CONSULT-II Reference Value in Data Monitor Mode
1439
Diagnostic Procedure ..........................................1439
ICC BRAKE SWITCH ............................................1441
Component Description .......................................1441
CONSULT-II Reference Value in Data Monitor Mode
1441
Wiring Diagram ...................................................1442
Diagnostic Procedure ..........................................1443
Component Inspection ........................................1447
ASCD BRAKE SWITCH ........................................1449
Component Description .......................................1449
CONSULT-II Reference Value in Data Monitor Mode 1449
Wiring Diagram ....................................................1450
Diagnostic Procedure ..........................................1451
Component Inspection .........................................1455
ASCD INDICATOR ................................................. 1456
Component Description .......................................1456
CONSULT-II Reference Value in Data Monitor Mode
1456
Wiring Diagram ....................................................1457
Diagnostic Procedure ..........................................1458
MIL AND DATA LINK CONNECTOR .....................1459
Wiring Diagram ....................................................1459
SERVICE DATA AND SPECIFICATIONS (SDS) ...1461
Fuel Pressure ......................................................1461
Idle Speed and Ignition Timing ............................1461
Calculated Load Value .........................................1461
Mass Air Flow Sensor ..........................................1461
Intake Air Temperature Sensor ............................1461
Engine Coolant Temperature Sensor ..................1461
Fuel Tank Temperature Sensor ...........................1461
Crankshaft Position Sensor (POS) ......................1461
Camshaft Position Sensor (PHASE) ...................1461
A/F Sensor 1 Heater ............................................ 1461
Heated Oxygen Sensor 2 Heater ........................1462
Throttle Control Motor ..........................................1462
Fuel Injector .........................................................1462
Fuel Pump ...........................................................1462

INDEX FOR DTC
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Revision: 2006 January2006 M35/M45P0139 0139 HO2S2 (B1)EC-310
P0150 0150 A/F SENSOR1 (B2)EC-246
P0151 0151 A/F SENSOR1 (B2)EC-256
P0152 0152 A/F SENSOR1 (B2)EC-265
P0153 0153 A/F SENSOR1 (B2)EC-274
P0157 0157 HO2S2 (B2)EC-286
P0158 0158 HO2S2 (B2)EC-297
P0159 0159 HO2S2 (B2)EC-310
P0171 0171 FUEL SYS-LEAN-B1EC-321
P0172 0172 FUEL SYS-RICH-B1EC-332
P0174 0174 FUEL SYS-LEAN-B2EC-321
P0175 0175 FUEL SYS-RICH-B2EC-332
P0181 0181 FTT SENSOREC-343
P0182 0182 FTT SEN/CIRCUITEC-349
P0183 0183 FTT SEN/CIRCUITEC-349
P0222 0222 TP SEN 1/CIRCEC-354
P0223 0223 TP SEN 1/CIRCEC-354
P0300 0300 MULTI CYL MISFIREEC-361
P0301 0301 CYL 1 MISFIREEC-361
P0302 0302 CYL 2 MISFIREEC-361
P0303 0303 CYL 3 MISFIREEC-361
P0304 0304 CYL 4 MISFIREEC-361
P0305 0305 CYL 5 MISFIREEC-361
P0306 0306 CYL 6 MISFIREEC-361
P0327 0327 KNOCK SEN/CIRC-B1EC-371
P0328 0328 KNOCK SEN/CIRC-B1EC-371
P0335 0335 CKP SEN/CIRCUITEC-376
P0340 0340 CMP SEN/CIRC-B1EC-383
P0345 0345 CMP SEN/CIRC-B2EC-383
P0420 0420 TW CATALYST SYS-B1EC-392
P0430 0430 TW CATALYST SYS-B2EC-392
P0441 0441 EVAP PURG FLOW/MONEC-398
P0442 0442 EVAP SMALL LEAKEC-403
P0443 0443 PURG VOLUME CONT/VEC-412
P0444 0444 PURG VOLUME CONT/VEC-420
P0445 0445 PURG VOLUME CONT/VEC-420
P0447 0447 VENT CONTROL VALVEEC-427
P0448 0448 VENT CONTROL VALVEEC-434
P0451 0451 EVAP SYS PRES SENEC-440
P0452 0452 EVAP SYS PRES SENEC-443
P0453 0453 EVAP SYS PRES SENEC-450
P0455 0455 EVAP GROSS LEAKEC-458
DTC*1
Items
(CONSULT-II screen terms)Reference page
CONSULT-II
GST*
2ECM*3

EC-18
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INDEX FOR DTC
Revision: 2006 January2006 M35/M45
P0456 0456 EVAP VERY SML LEAKEC-466
P0460 0460 FUEL LEV SEN SLOSHEC-475
P0461 0461 FUEL LEVEL SENSOREC-477
P0462 0462 FUEL LEVL SEN/CIRCEC-479
P0463 0463 FUEL LEVL SEN/CIRCEC-479
P0500 0500
VEH SPEED SEN/CIRC*5EC-481
P0506 0506 ISC SYSTEMEC-483
P0507 0507 ISC SYSTEMEC-485
P0550 0550 PW ST P SEN/CIRCEC-487
P0603 0603 ECM BACK UP/CIRCUITEC-492
P0605 0605 ECMEC-496
P0643 0643 SENSOR POWER/CIRCEC-499
P0700 0700 TCMAT- 11 2
P0705 0705 PNP SW/CIRCAT- 11 3
P0710 0710 ATF TEMP SEN/CIRCAT-135
P0717 0717 TURBINE SENSORAT- 11 7
P0720 0720
VEH SPD SEN/CIR AT*5AT- 11 9
P0725 0725 ENGINE SPEED SIGAT-124
P0740 0740 TCC SOLENOID/CIRCAT-126
P0744 0744 A/T TCC S/V FNCTNAT-128
P0745 0745 L/PRESS SOL/CIRCAT-130
P0850 0850 P-N POS SW/CIRCUITEC-504
P1148 1148 CLOSED LOOP-B1EC-509
P1168 1168 CLOSED LOOP-B2EC-509
P1211 1211 TCS C/U FUNCTNEC-510
P1212 1212 TCS/CIRCEC-511
P1217 1217 ENG OVER TEMPEC-512
P1220 1220 FPCM/CIRCUITEC-525
P1225 1225 CTP LEARNINGEC-533
P1226 1226 CTP LEARNINGEC-535
P1550 1550 BAT CURRENT SENSOREC-537
P1551 1551 BAT CURRENT SENSOREC-543
P1552 1552 BAT CURRENT SENSOREC-543
P1553 1553 BAT CURRENT SENSOREC-549
P1554 1554 BAT CURRENT SENSOREC-555
P1564 1564 ASCD SWEC-561 (Models with ICC)
EC-568
(Models with ASCD)
P1568 1568
ICC COMMAND VALUE*
6EC-575
P1572 1572 ASCD BRAKE SWEC-576 (Models with ICC)
EC-585
(Models with ASCD)
P1574 1574 ASCD VHL SPD SENEC-593
(Models with ICC)
EC-595
(Models with ASCD)
P1610 - P1615 1610 - 1615 NATS MALFUNCTIONEC-53
DTC*1
Items
(CONSULT-II screen terms)Reference page
CONSULT-II
GST*
2ECM*3

INDEX FOR DTC
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Revision: 2006 January2006 M35/M45CLOSED LOOP-B2 P1168 1168EC-509
CMP SEN/CIRC-B1 P0340 0340EC-383
CMP SEN/CIRC-B2 P0345 0345EC-383
CONTROL UNIT(CAN)
U1010*41010EC-176
CTP LEARNING P1225 1225EC-533
CTP LEARNING P1226 1226EC-535
CYL 1 MISFIRE P0301 0301EC-361
CYL 2 MISFIRE P0302 0302EC-361
CYL 3 MISFIRE P0303 0303EC-361
CYL 4 MISFIRE P0304 0304EC-361
CYL 5 MISFIRE P0305 0305EC-361
CYL 6 MISFIRE P0306 0306EC-361
D/C SOLENOID/CIRC P1762 1762AT-155
D/C SOLENOID FNCTN P1764 1764AT-157
ECM P0605 0605EC-496
ECM BACK UP/CIRCUIT P0603 0603EC-492
ECT SEN/CIRC P0117 0117EC-226
ECT SEN/CIRC P0118 0118EC-226
ECT SENSOR P0125 0125EC-238
ENG OVER TEMP P1217 1217EC-512
ENGINE SPEED SIG P0725 0725AT-124
ETC ACTR P2119 2119EC-624
ETC FUNCTION/CIRC P2101 2101EC-613
ETC MOT P2118 2118EC-619
ETC MOT PWR P2100 2100EC-607
ETC MOT PWR P2103 2103EC-607
EVAP GROSS LEAK P0455 0455EC-458
EVAP PURG FLOW/MON P0441 0441EC-398
EVAP SMALL LEAK P0442 0442EC-403
EVAP SYS PRES SEN P0451 0451EC-440
EVAP SYS PRES SEN P0452 0452EC-443
EVAP SYS PRES SEN P0453 0453EC-450
EVAP VERY SML LEAK P0456 0456EC-466
FPCM/CIRCUIT P1220 1220EC-525
FR/B SOLENOID/CIRC P1757 1757AT-151
FR/B SOLENOID FNCT P1759 1759AT-153
FTT SEN/CIRCUIT P0182 0182EC-349
FTT SEN/CIRCUIT P0183 0183EC-349
FTT SENSOR P0181 0181EC-343
FUEL LEVEL SENSOR P0461 0461EC-477
FUEL LEVL SEN/CIRC P0462 0462EC-479
FUEL LEVL SEN/CIRC P0463 0463EC-479
Items
(CONSULT-II screen terms)DTC*
1
Reference page
CONSULT-II
GST*
2ECM*3

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INDEX FOR DTC
Revision: 2006 January2006 M35/M45
FUEL LEV SEN SLOSH P0460 0460EC-475
FUEL SYS-LEAN-B1 P0171 0171EC-321
FUEL SYS-LEAN-B2 P0174 0174EC-321
FUEL SYS-RICH-B1 P0172 0172EC-332
FUEL SYS-RICH-B2 P0175 0175EC-332
HLR/C SOL/CIRC P1767 1767AT-159
HLR/C SOL FNCTN P1769 1769AT-161
HO2S2 HTR (B1) P0037 0037EC-189
HO2S2 HTR (B1) P0038 0038EC-189
HO2S2 HTR (B2) P0057 0057EC-189
HO2S2 HTR (B2) P0058 0058EC-189
HO2S2 (B1) P0137 0137EC-286
HO2S2 (B1) P0138 0138EC-297
HO2S2 (B1) P0139 0139EC-310
HO2S2 (B2) P0157 0157EC-286
HO2S2 (B2) P0158 0158EC-297
HO2S2 (B2) P0159 0159EC-310
I/C SOLENOID/CIRC P1752 1752AT-147
I/C SOLENOID FNCTN P1754 1754AT-149
IAT SEN/CIRCUIT P0112 0112EC-221
IAT SEN/CIRCUIT P0113 0113EC-221
IAT SENSOR P0127 0127EC-241
ICC COMMAND VALUE*6P1568 1568EC-575
INT/V TIM CONT-B1 P0011 0011EC-178
INT/V TIM CONT-B2 P0021 0021EC-178
INT/V TIM V/CIR-B1 P0075 0075EC-197
INT/V TIM V/CIR-B2 P0081 0081EC-197
IN PULY SPEED P1715 1715EC-597
ISC SYSTEM P0506 0506EC-483
ISC SYSTEM P0507 0507EC-485
KNOCK SEN/CIRC-B1 P0327 0327EC-371
KNOCK SEN/CIRC-B1 P0328 0328EC-371
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-205
MAF SEN/CIRCUIT P0102 0102EC-214
MAF SEN/CIRCUIT P0103 0103EC-214
MULTI CYL MISFIRE P0300 0300EC-361
NATS MALFUNCTION P1610 - P1615 1610 - 1615EC-53
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0000 — Items
(CONSULT-II screen terms)DTC*
1
Reference page
CONSULT-II
GST*
2ECM*3

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PRECAUTIONS
Revision: 2006 January2006 M35/M45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NBS004RW
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.
WAR NING :
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 CoverNBS004RX
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/TNBS004RY
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-102, "
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

PRECAUTIONS
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Revision: 2006 January2006 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.
SEC893C
PBIB2707E
SEF709Y
SEF708Y

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PREPARATION
Revision: 2006 January2006 M35/M45
PREPARATIONPFP:00002
Special Service ToolsNBS004S0
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
(J-44626)
Air fuel ratio (A/F)
sensor wrenchLoosening tightening air fuel ratio (A/F) sensor 1
KV10114400
(J-38365)
Heated oxygen
sensor wrenchLoosening or tightening air fuel ratio (A/F) 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
LEM054
S-NT636
LEC642
S-NT825
S-NT826

PREPARATION
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Revision: 2006 January2006 M35/M45
Commercial Service ToolsNBS004S1
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
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Revision: 2006 January2006 M35/M45
Multiport Fuel Injection (MFI) SystemNBS004S3
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)*
2VDC/TCS operation command
Air conditioner switch*
2Air conditioner operation
Wheel sensor*
2Vehicle speed