speed sensor INFINITI M35 2006 Factory Service Manual

EC-15
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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

EC-18
[VQ35DE]
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
EC-19
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Revision: 2006 January2006 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 at the same time, the MIL illuminates.
*6: Models with ICC.P1705 1705 TP SEN/CIRC A/TAT-132
P1715 1715 IN PULY SPEEDEC-597
P1730 1730 A/T INTERLOCKAT-142
P1752 1752 I/C SOLENOID/CIRCAT-147
P1754 1754 I/C SOLENOID FNCTNAT-149
P1757 1757 FR/B SOLENOID/CIRCAT-151
P1759 1759 FR/B SOLENOID FNCTAT-153
P1762 1762 D/C SOLENOID/CIRCAT-155
P1764 1764 D/C SOLENOID FNCTNAT-157
P1767 1767 HLR/C SOL/CIRCAT-159
P1769 1769 HLR/C SOL FNCTNAT-161
P1772 1772 LC/B SOLENOID/CIRCAT-163
P1774 1774 LC/B SOLENOID FNCTAT-165
P1805 1805 BRAKE SW/CIRCUITEC-598
P2100 2100 ETC MOT PWREC-607
P2101 2101 ETC FUNCTION/CIRCEC-613
P2103 2103 ETC MOT PWREC-607
P 2 11 8 2 11 8 E T C M O TEC-619
P 2 11 9 2 11 9 E T C A C T REC-624
P2122 2122 APP SEN 1/CIRCEC-626
P2123 2123 APP SEN 1/CIRCEC-626
P2127 2127 APP SEN 2/CIRCEC-633
P2128 2128 APP SEN 2/CIRCEC-633
P2135 2135 TP SENSOREC-640
P2138 2138 APP SENSOREC-647
P2A00 2A00 A/F SENSOR1 (B1)EC-655
P2A03 2A03 A/F SENSOR1 (B2)EC-655
DTC*1
Items
(CONSULT-II screen terms)Reference page
CONSULT-II
GST*
2ECM*3

INDEX FOR DTC
EC-21
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EC
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

EC-22
[VQ35DE]
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

INDEX FOR DTC
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Revision: 2006 January2006 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 at the same time, the MIL illuminates.
*6: Models with ICC.P-N POS SW/CIRCUIT P0850 0850EC-504
PNP SW/CIRC P0705 0705AT- 11 3
PURG VOLUME CONT/V P0443 0443EC-412
PURG VOLUME CONT/V P0444 0444EC-420
PURG VOLUME CONT/V P0445 0445EC-420
PW ST P SEN/CIRC P0550 0550EC-487
SENSOR POWER/CIRC P0643 0643EC-499
TCC SOLENOID/CIRC P0740 0740AT-126
TCM P0700 0700AT- 11 2
TCS/CIRC P1212 1212EC-511
TCS C/U FUNCTN P1211 1211EC-510
THERMSTAT FNCTN P0128 0128EC-244
TP SENSOR P2135 2135EC-640
TP SEN 1/CIRC P0222 0222EC-354
TP SEN 1/CIRC P0223 0223EC-354
TP SEN 2/CIRC P0122 0122EC-231
TP SEN 2/CIRC P0123 0123EC-231
TP SEN/CIRC A/T P1705 1705AT-132
TURBINE SENSOR P0717 0717AT- 11 7
TW CATALYST SYS-B1 P0420 0420EC-392
TW CATALYST SYS-B2 P0430 0430EC-392
VEH SPD SEN/CIR AT*5P0720 0720AT- 11 9
VEH SPEED SEN/CIRC*5P0500 0500EC-481
VENT CONTROL VALVE P0447 0447EC-427
VENT CONTROL VALVE P0448 0448EC-434
Items
(CONSULT-II screen terms)DTC*
1
Reference page
CONSULT-II
GST*
2ECM*3

ENGINE CONTROL SYSTEM
EC-31
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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

EC-32
[VQ35DE]
ENGINE CONTROL SYSTEM
Revision: 2006 January2006 M35/M45
MIXTURE RATIO FEEDBACK CONTROL (CLOSED LOOP CONTROL)
The mixture ratio feedback system provides 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 A/F sensor 1
in the exhaust manifold to monitor whether the engine operation is rich or lean. The ECM adjusts the injection
pulse width according to the sensor voltage signal. For more information about A/F sensor 1, refer to EC-256,
"DTC P0131, P0151 A/F SENSOR 1" . This maintains the mixture ratio within the range of stoichiometric (ideal
air-fuel mixture).
This stage is referred to as the closed loop control condition.
Heated oxygen sensor 2 is located downstream of the three way catalyst 1. Even if the switching characteris-
tics of A/F sensor 1 shift, the air-fuel ratio is controlled to stoichiometric by the signal from heated oxygen sen-
sor 2.
Open Loop Control
The open loop system condition refers to when the ECM detects any of the following conditions. Feedback
control stops in order to maintain stabilized fuel combustion.
Deceleration and acceleration
High-load, high-speed operation
Malfunction of A/F sensor 1 or its circuit
Insufficient activation of A/F sensor 1 at low engine coolant temperature
High engine coolant temperature
During warm-up
After shifting from N to D
When starting the engine
MIXTURE RATIO SELF-LEARNING CONTROL
The mixture ratio feedback control system monitors the mixture ratio signal transmitted from A/F sensor 1.
This feedback signal is then sent to the ECM. The ECM controls the basic mixture ratio as close to the theoret-
ical mixture ratio as possible. However, the basic mixture ratio is not necessarily controlled as originally
designed. Both manufacturing differences (i.e., mass air flow sensor hot wire) and characteristic changes dur-
ing operation (i.e., fuel injector clogging) directly affect mixture ratio.
Accordingly, the difference between the basic and theoretical mixture ratios is monitored in this system. This is
then computed in terms of “injection pulse duration” to automatically compensate for the difference between
the two ratios.
“Fuel trim” refers to the feedback compensation value compared against the basic injection duration. Fuel trim
includes short term fuel trim and long term fuel trim.
“Short term fuel trim” is the short-term fuel compensation used to maintain the mixture ratio at its theoretical
value. The signal from A/F sensor 1 indicates whether the mixture ratio is RICH or LEAN compared to the the-
oretical value. The signal then triggers a reduction in fuel volume if the mixture ratio is rich, and an increase in
fuel volume if it is lean.
“Long term fuel trim” is overall fuel compensation carried out long-term to compensate for continual deviation
of the short term fuel trim from the central value. Such deviation will occur due to individual engine differences,
wear over time and changes in the usage environment.
PBIB2793E

ENGINE CONTROL SYSTEM
EC-33
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Revision: 2006 January2006 M35/M45
FUEL INJECTION TIMING
Two types of systems are used.
Sequential Multiport Fuel Injection System
Fuel is injected into each cylinder during each engine cycle according to the firing order. This system is used
when the engine is running.
Simultaneous Multiport Fuel Injection System
Fuel is injected simultaneously into all six cylinders twice each engine cycle. In other words, pulse signals of
the same width are simultaneously transmitted from the ECM.
The six injectors will then receive the signals two times for each engine cycle.
This system is used when the engine is being started and/or if the fail-safe system (CPU) is operating.
FUEL SHUT-OFF
Fuel to each cylinder is cut off during deceleration, operation of the engine at excessively high speeds or oper-
ation of the vehicle at excessively high speeds.
Electronic Ignition (EI) SystemNBS004S4
INPUT/OUTPUT SIGNAL CHART
*1: This signal is sent to the ECM through CAN communication line.
*2: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
Firing order: 1 - 2 - 3 - 4 - 5 - 6
The ignition timing is controlled by the ECM to maintain the best air-fuel ratio for every running condition of the
engine. The ignition timing data is stored in the ECM.
The ECM receives information such as the injection pulse width and camshaft position sensor (PHASE) sig-
nal. Computing this information, ignition signals are transmitted to the power transistor.
During the following conditions, the ignition timing is revised by the ECM according to the other data stored in
the ECM.
At starting
During warm-up
At idle
At low battery voltage
SEF179U
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS)
Engine speed*
2
Piston position
Ignition timing
controlPower transistor Camshaft position sensor (PHASE)
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Battery
Battery voltage*
2
Knock sensor Engine knocking
Park/neutral position (PNP) switch Gear position
Wheel sensor*
1Vehicle speed

EC-34
[VQ35DE]
ENGINE CONTROL SYSTEM
Revision: 2006 January2006 M35/M45
During acceleration
The knock sensor retard system is designed only for emergencies. The basic ignition timing is programmed
within the anti-knocking zone, if recommended fuel is used under dry conditions. The retard system does not
operate under normal driving conditions. If engine knocking occurs, the knock sensor monitors the condition.
The signal is transmitted to the ECM. The ECM retards the ignition timing to eliminate the knocking condition.
Fuel Cut Control (At No Load and High Engine Speed)NBS004S5
INPUT/OUTPUT SIGNAL CHART
*: This signal is sent to the ECM through CAN communication line.
SYSTEM DESCRIPTION
If the engine speed is above 1,400 rpm under no load (for example, the selector lever position is neutral and
engine speed is over 1,400 rpm) fuel will be cut off after some time. The exact time when the fuel is cut off var-
ies based on engine speed.
Fuel cut will be operated until the engine speed reaches 1,000 rpm, then fuel cut will be cancelled.
NOTE:
This function is different from deceleration control listed under Multiport Fuel Injection (MFI) System, EC-31,
"Multiport Fuel Injection (MFI) System" .
Sensor Input Signal to ECM ECM function Actuator
Park/neutral position (PNP) switch Neutral position
Fuel cut con-
trolFuel injector Accelerator pedal position sensor Accelerator pedal position
Engine coolant temperature sensor Engine coolant temperature
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed
Wheel sensor* Vehicle speed