2008 INFINITI FX35 no start

DI-100
< SERVICE INFORMATION >
REAR VIEW MONITOR
REAR VIEW MONITOR
System DescriptionINFOID:0000000001328529
 The rear view monitor is equipped to check the rearward of the vehicle with display when A/T selector leveris in reverse position.
 The lines of vehicle sides and the distance from the rear end of the vehicle are provided on display as a
guide. It allows the driver to know the distance bet ween the vehicle and a rearward object, and the width of
the vehicle much easier.
POWER SUPPLY AND GROUND
Power is supplied at all time
 through 10A fuse [No. 19, located in fuse block (J/B)]
 to rear view camera control unit terminal 1.
When ignition switch is in ACC or ON position, power is supplied
 through 10A fuse [No. 6, located in fuse block (J/B)]
 to rear view camera control unit terminal 2.
When ignition switch is in ON or START position, power is supplied
 through 10A fuse (No. 83, located in IPDM E/R)
 to back-up lamp relay terminals 1 and 3.
Ground is supplied
 to rear view camera control unit terminal 3
 through grounds M35, M45 and M85.
AV COMMUNICATION LINE
Rear view camera control unit is connected to the foll owing units with AV communication line. Each unit trans-
mits/receives data with AV communication line.
 NAVI control unit
 Display
 Display control unit
 A/C and AV switch
REAR VIEW CAMERA OPERATION
When A/T selector lever is reverse position, power is supplied
 through back-up lamp relay terminal 2
 to TCM terminal 7.
Then back-up lamp relay is energized,
 from back-up lamp relay terminal 5
 to rear view camera control unit terminal 4.
Then, rear view camera control unit is sent camera ON signal
 through rear view camera control unit terminal 8
 to rear view camera terminal 1.
An image taken by rear view camera is sent
 through rear view camera terminals 3 and 4
 to rear view camera control unit terminals 10 and 9.
Then an image is sent
 through rear view camera control unit terminals 12 and 14
 to the display terminals 15 and 16.
An image of rear view will be projected on the display.
Side Distance Guideline
When A/T selector lever is in reverse position, rear view camera control unit is sent rear view camera guideline
image
 through rear view camera control unit terminals 12 and 14
 to the display terminals 15 and 16.
Rear view camera guideline will be projected on the display.
Display shows image from rear view camera image and rear view camera guideline.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EC-6
Diagnosis Procedure .............................................420
DTC P0605 ECM ..............................................422
Component Description ....................................... ..422
On Board Diagnosis Logic .....................................422
DTC Confirmation Procedure ................................422
Diagnosis Procedure .............................................423
DTC P0643 SENSOR POWER SUPPLY ........424
On Board Diagnosis Logic ................................... ..424
DTC Confirmation Procedure ................................424
Wiring Diagram ......................................................425
Diagnosis Procedure .............................................426
DTC P0850 PNP SWITCH ...............................429
Component Description ....................................... ..429
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
429
On Board Diagnosis Logic .....................................429
DTC Confirmation Procedure ................................429
Overall Function Check .........................................430
Wiring Diagram ......................................................431
Diagnosis Procedure .............................................432
DTC P1148, P1168 CLOSED LOOP CON-
TROL ................................................................
434
On Board Diagnosis Logic ................................... ..434
DTC P1211 TCS CONTROL UNIT ..................435
Description ........................................................... ..435
On Board Diagnosis Logic .....................................435
DTC Confirmation Procedure ................................435
Diagnosis Procedure .............................................435
DTC P1212 TCS COMMUNICATION LINE .....436
Description ........................................................... ..436
On Board Diagnosis Logic .....................................436
DTC Confirmation Procedure ................................436
Diagnosis Procedure .............................................436
DTC P1217 ENGINE OVER TEMPERATURE .437
Description ........................................................... ..437
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
438
On Board Diagnosis Logic .....................................438
Overall Function Check .........................................439
Wiring Diagram ......................................................440
Diagnosis Procedure .............................................441
Main 12 Causes of Overheating ............................445
Component Inspection ...........................................446
DTC P1225 TP SENSOR .................................447
Component Description ....................................... ..447
On Board Diagnosis Logic .....................................447
DTC Confirmation Procedure ................................447
Diagnosis Procedure .............................................447
Removal and Installation .......................................448
DTC P1226 TP SENSOR .................................449
Component Description ....................................... ..449
On Board Diagnosis Logic .....................................449
DTC Confirmation Procedure ............................... .449
Diagnosis Procedure .............................................449
Removal and Installation .......................................450
DTC P1421 COLD START CONTROL ............451
Description ........................................................... .451
On Board Diagnosis Logic ....................................451
DTC Confirmation Procedure ................................451
Diagnosis Procedure .............................................451
DTC P1564 ICC STEERING SWITCH ..............453
Component Description ....................................... .453
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
453
On Board Diagnosis Logic ....................................453
DTC Confirmation Procedure ................................453
Wiring Diagram .....................................................455
Diagnosis Procedure .............................................456
Component Inspection ..........................................458
DTC P1564 ASCD STEERING SWITCH ..........459
Component Description ....................................... .459
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
459
On Board Diagnosis Logic ....................................459
DTC Confirmation Procedure ................................459
Wiring Diagram .....................................................460
Diagnosis Procedure .............................................461
Component Inspection ..........................................463
DTC P1568 ICC FUNCTION .............................464
On Board Diagnosis Logic ................................... .464
DTC Confirmation Procedure ................................464
Diagnosis Procedure .............................................464
DTC P1572 ICC BRAKE SWITCH ...................465
Component Description ....................................... .465
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
465
On Board Diagnosis Logic ....................................465
DTC Confirmation Procedure ................................465
Wiring Diagram .....................................................467
Diagnosis Procedure .............................................468
Component Inspection ..........................................472
DTC P1572 ASCD BRAKE SWITCH ...............474
Component Description ....................................... .474
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
474
On Board Diagnosis Logic ....................................474
DTC Confirmation Procedure ................................474
Wiring Diagram .....................................................476
Diagnosis Procedure .............................................477
Component Inspection ..........................................480
DTC P1574 ICC VEHICLE SPEED SENSOR ..481
Component Description ........................................481
On Board Diagnosis Logic ....................................481
DTC Confirmation Procedure ................................481
Diagnosis Procedure .............................................481
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EC-13
C
DE
F
G H
I
J
K L
M
EC A
N
O P
DTC P0462, P0463 FUEL LEVEL SENSOR .. ..990
Component Description ....................................... ..990
On Board Diagnosis Logic ....................................990
DTC Confirmation Procedure ................................990
Diagnosis Procedure .............................................990
Removal and Installation .......................................991
DTC P0500 VSS ...............................................992
Description .......................................................... ..992
On Board Diagnosis Logic ....................................992
DTC Confirmation Procedure ................................992
Overall Function Check .........................................993
Diagnosis Procedure .............................................993
DTC P0506 ISC SYSTEM ................................994
Description .......................................................... ..994
On Board Diagnosis Logic ....................................994
DTC Confirmation Procedure ................................994
Diagnosis Procedure .............................................994
DTC P0507 ISC SYSTEM ................................996
Description .......................................................... ..996
On Board Diagnosis Logic ....................................996
DTC Confirmation Procedure ................................996
Diagnosis Procedure .............................................996
DTC P0550 PSP SENSOR ............................. ..998
Component Description ....................................... ..998
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
998
On Board Diagnosis Logic ....................................998
DTC Confirmation Procedure ................................998
Wiring Diagram .....................................................999
Diagnosis Procedure ...........................................1000
Component Inspection ........................................1002
Removal and Installation .....................................1002
DTC P0603 ECM POWER SUPPLY ..............1003
Component Description .......................................1003
On Board Diagnosis Logic ..................................1003
DTC Confirmation Procedure ..............................1003
Wiring Diagram ...................................................1004
Diagnosis Procedure ...........................................1005
DTC P0605 ECM ............................................1007
Component Description .......................................1007
On Board Diagnosis Logic ..................................1007
DTC Confirmation Procedure ..............................1007
Diagnosis Procedure ...........................................1008
DTC P0643 SENSOR POWER SUPPLY .......1009
On Board Diagnosis Logic ..................................1009
DTC Confirmation Procedure ..............................1009
Wiring Diagram ...................................................1010
Diagnosis Procedure ...........................................1011
DTC P0850 PNP SWITCH ..............................1014
Component Description .......................................1014
CONSULT-III Reference Value in Data Monitor
Mode ...................................................................
1014
On Board Diagnosis Logic ..................................1014
DTC Confirmation Procedure ..............................1014
Overall Function Check .......................................1015
Wiring Diagram ....................................................1016
Diagnosis Procedure ...........................................1017
DTC P1140, P1145 IVT CONTROL POSITION
SENSOR .........................................................
1019
Component Description .......................................1019
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1019
On Board Diagnosis Logic ...................................1019
DTC Confirmation Procedure ..............................1019
Wiring Diagram ....................................................1020
Diagnosis Procedure ...........................................1023
Component Inspection .........................................1025
Removal and Installation .....................................1026
DTC P1148, P1168 CLOSED LOOP CON-
TROL ..............................................................
1027
On Board Diagnosis Logic ...................................1027
DTC P1211 TCS CONTROL UNIT .................1028
Description ...........................................................1028
On Board Diagnosis Logic ...................................1028
DTC Confirmation Procedure ..............................1028
Diagnosis Procedure ...........................................1028
DTC P1212 TCS COMMUNICATION LINE ...1029
Description ...........................................................1029
On Board Diagnosis Logic ...................................1029
DTC Confirmation Procedure ..............................1029
Diagnosis Procedure ...........................................1029
DTC P1217 ENGINE OVER TEMPERATURE 1030
Description ...........................................................1030
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1031
On Board Diagnosis Logic ...................................1031
Overall Function Check .......................................1032
Wiring Diagram ....................................................1034
Diagnosis Procedure ...........................................1035
Main 13 Causes of Overheating ..........................1039
Component Inspection .........................................1040
DTC P1225 TP SENSOR ...............................1041
Component Description .......................................1041
On Board Diagnosis Logic ...................................1041
DTC Confirmation Procedure ..............................1041
Diagnosis Procedure ...........................................1041
Removal and Installation .....................................1042
DTC P1226 TP SENSOR ...............................1043
Component Description .......................................1043
On Board Diagnosis Logic ...................................1043
DTC Confirmation Procedure ..............................1043
Diagnosis Procedure ...........................................1043
Removal and Installation .....................................1044
DTC P1421 COLD START CONTROL ..........1045
Description ...........................................................1045
On Board Diagnosis Logic ...................................1045
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

INDEX FOR DTCEC-19
< SERVICE INFORMATION > [VQ35DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
OP0460 0460 FUEL LEV SEN SLOSH
EC-401
P0461 0461 FUEL LEVEL SENSOREC-403
P0462 0462 FUEL LEVL SEN/CIRCEC-405
P0463 0463 FUEL LEVL SEN/CIRCEC-405
P0500 0500
VEH SPEED SEN/CIRC*5EC-407
P0506 0506 ISC SYSTEM EC-409
P0507 0507 ISC SYSTEM EC-411
P0550 0550 PW ST P SEN/CIRCEC-413
P0603 0603 ECM BACK UP/CIRCUITEC-418
P0605 0605 ECMEC-422
P0643 0643 SENSOR POWER/CIRCEC-424
P0700 0700 TCM AT- 1 0 1
P0705 0705 PNP SW/CIRCAT- 1 0 2
P0710 0710 ATF TEMP SEN/CIRCAT- 1 3 2
P0717 0717 TURBINE SENSORAT- 1 0 6
P0720 0720
VEH SPD SEN/CIR AT*5AT- 1 0 8
P0731 0731 A/T 1ST GR FNCTN AT- 11 4
P0732 0732 A/T 2ND GR FNCTNAT- 11 6
P0733 0733 A/T 3RD GR FNCTNAT- 11 8
P0734 0734 A/T 4TH GR FNCTNAT- 1 2 0
P0735 0735 A/T 5TH GR FNCTNAT- 1 2 2
P0740 0740 TCC SOLENOID/CIRCAT- 1 2 4
P0744 0744 A/T TCC S/V FNCTNAT- 1 2 6
P0745 0745 L/PRESS SOL/CIRCAT- 1 2 8
P0850 0850 P-N POS SW/CIRCUITEC-429
P1148 1148 CLOSED LOOP-B1EC-434
P1168 1168 CLOSED LOOP-B2EC-434
P1211 1211 TCS C/U FUNCTNEC-435
P1212 1212 TCS/CIRC EC-436
P1217 1217 ENG OVER TEMPEC-437
P1225 1225 CTP LEARNING-B1EC-447
P1226 1226 CTP LEARNING-B1EC-449
P1421 1421 COLD START CONTROLEC-451
P1564 1564 ASCD SWEC-453 (Models with ICC),
EC-459
(Models with ASCD)
P1568 1568 ICC COMMAND VALUE*
6EC-464
P1572 1572 ASCD BRAKE SW EC-465 (Models with ICC),
EC-474
(Models with ASCD)
P1574 1574 ASCD VHL SPD SEN EC-481
(Models with ICC),
EC-483
(Models with ASCD)
P1610 1610 LOCK MODE BL-4
P1611 1611 ID DISCARD IMM-ECMBL-4
P1612 1612 CHAIN OF ECM-IMMU BL-4
DTC*1
Items
(CONSULT-III screen terms) Reference page
CONSULT-III
GST*
2ECM*3
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

INDEX FOR DTCEC-21
< SERVICE INFORMATION > [VQ35DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
OA/F SENSOR1 (B1) P2A00 2A00
EC-532
A/F SENSOR1 (B2) P0150 0150EC-212
A/F SENSOR1 (B2) P0151 0151EC-220
A/F SENSOR1 (B2) P0152 0152EC-228
A/F SENSOR1 (B2) P0153 0153EC-236
A/F SENSOR1 (B2) P2A03 2A03EC-532
A/T 1ST GR FNCTN P0731 0731 AT- 11 4
A/T 2ND GR FNCTN P0732 0732AT- 11 6
A/T 3RD GR FNCTN P0733 0733AT- 11 8
A/T 4TH GR FNCTN P0734 0734AT-120
A/T 5TH GR FNCTN P0735 0735AT-122
A/T INTERLOCK P1730 1730AT-139
A/T TCC S/V FNCTN P0744 0744AT-126
APP SEN 1/CIRC P2122 2122EC-506
APP SEN 1/CIRC P2123 2123EC-506
APP SEN 2/CIRC P2127 2127EC-512
APP SEN 2/CIRC P2128 2128EC-512
APP SENSOR P2138 2138EC-524
ASCD BRAKE SW P1572 1572EC-465 (Models with ICC),
EC-474
(Models with ASCD)
ASCD SW P1564 1564 EC-453
(Models with ICC),
EC-459
(Models with ASCD)
ASCD VHL SPD SEN P1574 1574 EC-481
(Models with ICC),
EC-483
(Models with ASCD)
ATF TEMP SEN/CIRC P0710 0710 AT-132
BRAKE SW/CIRCUIT P1805 1805EC-486
CAN COMM CIRCUIT U1000
1000*4EC-146
CAN COMM CIRCUIT U10011001*4EC-146
CHAIN OF ECM-IMMU P1612 1612 BL-4
CHAIN OF IMMU-KEY P1614 1614BL-4
CKP SEN/CIRCUIT P0335 0335EC-319
C L O S E D L O O P - B 1 P 11 4 8 11 4 8EC-434
C L O S E D L O O P - B 2 P 11 6 8 11 6 8EC-434
CMP SEN/CIRC-B1 P0340 0340EC-324
CMP SEN/CIRC-B2 P0345 0345EC-324
COLD START CONTROL P1421 1421EC-451
CONTROL UNIT(CAN) U1010 1010EC-148
CTP LEARNING-B1 P1225 1225EC-447
CTP LEARNING-B1 P1226 1226EC-449
CYL 1 MISFIRE P0301 0301EC-308
CYL 2 MISFIRE P0302 0302EC-308
CYL 3 MISFIRE P0303 0303EC-308
CYL 4 MISFIRE P0304 0304EC-308
Items
(CONSULT-III screen terms) DTC*
1
Reference page
CONSULT-III
GST*
2ECM*3
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EC-26
< SERVICE INFORMATION >[VQ35DE]
PRECAUTIONS
Precaution
INFOID:0000000001325892
 Always use a 12 volt battery as power source.
 Do not attempt to disconnect battery cables while engine is
running.
 Before connecting or disconnecting the ECM harness con-
nector, turn ignition switch OFF and disconnect negative bat-
tery cable. Failure to do so may damage the ECM because
battery voltage is applied to ECM even if ignition switch is
turned OFF.
 Before removing parts, turn ig nition switch OFF and then dis-
connect negative battery cable.
 Do not disassemble ECM.
 If a battery cable is disconnected, the memory will return to
the ECM value.
The ECM will now start to self-c ontrol at its initial value.
Engine operation can vary slight ly when the terminal is dis-
connected. However, this is no t an indication of a malfunc-
tion. Do not replace parts b ecause of a slight variation.
 If the battery is disconnected, the following emission-related
diagnostic information will be lost within 24 hours.
- Diagnostic trouble codes
- 1st trip diagnostic trouble codes
- Freeze frame data
- 1st trip freeze frame data
- System readiness test (SRT) codes
- Test values
 When connecting ECM harness co nnector, fasten it securely
with a lever as far as it will go as shown in the figure.
 When connecting or disconnect ing pin connectors into or
from ECM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on ECM pin
terminal, when connecting pin connectors.
 Securely connect ECM harness connectors.
A poor connection can cause an extremely high (surge) volt-
age to develop in coil and co ndenser, thus resulting in dam-
age to ICs.
 Keep engine control system harn ess at least 10 cm (4 in) away
from adjacent harness, to preven t engine control system mal-
functions due to receiving exter nal noise, degraded operation
of ICs, etc.
 Keep engine control system parts and harness dry.
SEF289H
PBIB1164E
PBIB1512E
PBIB0090E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

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
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EC-32
< SERVICE INFORMATION >[VQ35DE]
ENGINE CONTROL SYSTEM
*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). T he amount of fuel injected is a program value in the
ECM memory. The program value is preset by engi ne operating conditions. These conditions are determined
by input signals (for engine speed and intake air) from both the crankshaft position sensor and the mass air
flow sensor.
VARIOUS FUEL INJECTION I NCREASE/DECREASE COMPENSATION
In addition, the amount of fuel injected is compens ated 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
MIXTURE RATIO FEEDBACK CONTROL (CLOSED LOOP CONTROL)
The mixture ratio feedback system prov ides 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 air fuel ratio
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
Knock sensor Engine knocking condition
Battery
Battery voltage*
3
Power steering pressure sensor Power steering operation
Heated oxygen sensor 2*
1Density of oxygen in exhaust gas
Air conditioner switch Air conditioner operation*
2
Wheel sensorVehicle speed*2
PBIB3020E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C