Abs INFINITI FX35 2004 Service Manual

AUTOMATIC SPEED CONTROL DEVICE (ASCD)
EC-657
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Revision: 2004 November 2004 FX35/FX45
AUTOMATIC SPEED CONTROL DEVICE (ASCD)PFP:18930
System DescriptionABS006ZG
INPUT/OUTPUT SIGNAL CHART
*: This signal is sent to the ECM through CAN communication line.
BASIC ASCD SYSTEM
Refer to Owner's Manual for ASCD operating instructions.
Automatic Speed Control Device (ASCD) allows a driver to keep vehicle at predetermined constant speed
without depressing accelerator pedal. Driver can set vehicle speed in advance between approximately 40 km/
h (25 MPH) and 144 km/h (89 MPH).
ECM controls throttle angle of electric throttle control actuator to regulate engine speed.
Operation status of ASCD is indicated by CRUISE indicator and SET indicator in combination meter. If any
malfunction occurs in ASCD system, it automatically deactivates control.
SET OPERATION
Press ON/OFF(MAIN)) switch. (The CRUISE indicator in combination meter illuminates.)
When vehicle speed reaches a desired speed between approximately 40 km/h (25 MPH) and 144 km/h (89
MPH), press COAST/SET switch. (Then SET indicator in combination meter illuminates.)
ACCEL OPERATION
If the ACCEL/RESUME switch is pressed during cruise control driving, increase the vehicle speed until the
switch is released or vehicle speed reaches maximum speed controlled by the system.
And then ASCD will keep the new set speed.
CANCEL OPERATION
When any of following conditions exist, cruise operation will be canceled.

CANCEL switch is pressed

More than 2 switches at ASCD steering switch are pressed at the same time (Set speed will be cleared)

Brake pedal is depressed

Selector lever is changed to N, P, R position

Vehicle speed decreased to 13 km/h (8 MPH) lower than the set speed

VDC/TCS system is operated
When the ECM detects any of the following conditions, the ECM will cancel the cruise operation and inform
the driver by blinking indicator lamp.

Engine coolant temperature is slightly higher than the normal operating temperature, CRUISE lamp may
blink slowly.
When the engine coolant temperature decreases to the normal operating temperature, CRUISE lamp will
stop blinking and the cruise operation will be able to work by depressing COAST/SET switch or ACCEL/
RESUME switch.

Malfunction for some self-diagnoses regarding ASCD control: SET lamp will blink quickly.
If ON/OFF(MAIN) switch is turned to OFF during ASCD is activated, all of ASCD operations will be canceled
and vehicle speed memory will be erased.
COAST OPERATION
When the COAST/SET switch is pressed during cruise control driving, decrease vehicle set speed until the
switch is released. And then ASCD will keep the new set speed.
Sensor Input signal to ECM ECM function Actuator
ASCD brake switch Brake pedal operation
ASCD vehicle speed controlElectric throttle control
actuator Stop lamp switch Brake pedal operation
ASCD steering switch ASCD steering switch operation
Park/Neutral position (PNP)
switchGear position
Unified meter and A/C amp.* Vehicle speed
TCM* Powertrain revolution

AUTOMATIC SPEED CONTROL DEVICE (ASCD)
EC-659
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Revision: 2004 November 2004 FX35/FX45
Component DescriptionABS006ZH
ASCD STEERING SWITCH
Refer to EC-515 .
ASCD BRAKE SWITCH
Refer to EC-532 , and EC-624 .
STOP LAMP SWITCH
Refer to EC-532 , EC-550 and EC-624 .
ELECTRIC THROTTLE CONTROL ACTUATOR
Refer to EC-415 , EC-417 , EC-423 and EC-428 .
ASCD INDICATOR
Refer to EC-632 .

EC-660
[VQ35DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2004 November 2004 FX35/FX45
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Fuel PressureABS006ZI
Idle Speed and Ignition TimingABS006ZJ
*1: Under the following conditions:

Air conditioner switch: OFF

Electric load: OFF (Lights, heater fan & rear window defogger)

Steering wheel: Kept in straight-ahead position
Calculated Load ValueABS006ZK
Mass Air Flow SensorABS006ZL
*: Engine is warmed up to normal operating temperature and running under no-load.
Intake Air Temperature SensorABS006ZM
Engine Coolant Temperature SensorABS006ZN
Heated Oxygen Sensor 1 HeaterABS006ZO
Heated Oxygen sensor 2 HeaterABS006ZP
Crankshaft Position Sensor (POS)ABS006ZQ
Refer to EC-307, "Component Inspection" .
Camshaft Position Sensor (PHASE)ABS006ZR
Refer to EC-315, "Component Inspection" .
Throttle Control MotorABS006ZS
Fuel pressure at idling kPa (kg/cm2 , psi)Approximately 350 (3.57, 51)
Target idle speed
No-load*1 (in P or N position)650±50 rpm
Air conditioner: ON In P or N position 775 rpm or more
Ignition timing In P or N position 15° ± 5° BTDC
Calculated load value% (Using CONSULT-II or GST)
At idle5 - 35
At 2,500 rpm5 - 35
Supply voltageBattery voltage (11 - 14V)
Output voltage at idle1.1 - 1.5*V
Mass air flow (Using CONSULT-II or GST)2.0 - 6.0 g·m/sec at idle*
7.0 - 20.0 g·m/sec at 2,500 rpm*
Temperature °C (°F) Resistance kΩ
25 (77)1.94 - 2.06
80 (176)0.295 - 0.349
Temperature °C (°F) Resistance kΩ
20 (68)2.1 - 2.9
50 (122)0.68 - 1.00
90 (194)0.236 - 0.260
Resistance [at 25°C (77°F)] 3.3 - 4.0Ω
Resistance [at 25°C (77°F)] 5.0 - 7.0Ω
Resistance [at 25°C (77°F)] Approximately 1 - 15Ω

SERVICE DATA AND SPECIFICATIONS (SDS)
EC-661
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Revision: 2004 November 2004 FX35/FX45
InjectorABS006ZT
Fuel PumpABS006ZU
Resistance [at 10 - 60°C (50 - 140°F)] 13.5 - 17.5Ω
Resistance [at 25°C (77°F)] Approximately 0.2 - 5.0Ω

EC-662
[VK45DE]
INDEX FOR DTC
Revision: 2004 November 2004 FX35/FX45
[VK45DE]INDEX FOR DTCPFP:00024
Alphabetical IndexABS00BYV
NOTE:
If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-792, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
×:Applicable —: Not applicable
Items
(CONSULT-II screen terms)DTC*
1
TripMIL lighting
upReference page
CONSULT-II
GST*
2ECM*3
A/T INTERLOCK P1730 1730 1×AT-147
A/T TCC S/V FNCTN P0744 0744 2×AT-125
ACC COMMAND VALUE*7P1568 1568 1×EC-1188
APP SEN 1/CIRC P2122 2122 1×EC-1225
APP SEN 1/CIRC P2123 2123 1×EC-1225
APP SEN 2/CIRC P2127 2127 1×EC-1232
APP SEN 2/CIRC P2128 2128 1×EC-1232
APP SENSOR P2138 2138 1×EC-1246
ASCD BRAKE SW*7 *8P1572 1572 1 —EC-1189,
EC-1199
ASCD SW*7 *8P1564 1564 1 —EC-1174,
EC-1181
ASCD VHL SPD SEN*7 *8P1574 1574 1 —EC-1207,
EC-1209
ATF TEMP SEN/CIRC P0710 0710 2×AT-139
BRAKE SW/CIRCUIT P1805 1805 2 —EC-1220
CAN COMM CIRCUIT U1000
1000*51× or —EC-792
CAN COMM CIRCUIT U1001
1001*52—EC-792
CKP SEN/CIRCUIT P0335 0335 2×EC-960
CLOSED LOOP-B1 P1148 1148 1×EC-1138
CLOSED LOOP-B2 P1168 1168 1×EC-1138
CMP SEN/CIRC-B1 P0340 0340 2×EC-966
CTP LEARNING P1225 1225 2 —EC-1152
CTP LEARNING P1226 1226 2 —EC-1154
CYL 1 MISFIRE P0301 0301 2×EC-949
CYL 2 MISFIRE P0302 0302 2×EC-949
CYL 3 MISFIRE P0303 0303 2×EC-949
CYL 4 MISFIRE P0304 0304 2×EC-949
CYL 5 MISFIRE P0305 0305 2×EC-949
CYL 6 MISFIRE P0306 0306 2×EC-949
CYL 7 MISFIRE P0307 0307 2×EC-949
CYL 8 MISFIRE P0308 0308 2×EC-949
D/C SOLENOID/CIRC P1762 1762 1×AT-160
D/C SOLENOID FNCTN P1764 1764 1×AT-162
ECM P0605 0605 1 or 2× or —EC-1057
ECM BACK UP/CIRCUIT P1065 1065 2×EC-1060
ECT SEN/CIRCUIT P0117 0117 1×EC-842

INDEX FOR DTC
EC-665
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Revision: 2004 November 2004 FX35/FX45
*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: When engine is running.
*5: The troubleshooting for this DTC needs CONSULT-II.
*6: When the fail-safe operations for both self-diagnoses occur at the same time, the MIL illuminates.
*7: Models with ICC
*8: Models with ASCD
DTC No. IndexABS00BYW
NOTE:
If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-792, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0000———
P-N POS SW/CIRCUIT P1706 1706 2×EC-1211
PNP SW/CIRC P0705 0705 2×AT- 11 2
PURG VOLUME CONT/V P0444 0444 2×EC-990
PURG VOLUME CONT/V P0445 0445 2×EC-990
PURG VOLUME CONT/V P1444 1444 2×EC-1160
PW ST P SEN/CIRC P0550 0550 2 —EC-1052
SENSOR POWER/CIRC P1229 1229 1×EC-1156
SHIFT SIG FNCTN P1780 1780 2 —EC-1218
TCC SOLENOID/CIRC P0740 0740 2×AT- 1 2 3
TCS C/U FUNCTN P1211 1211 2 —EC-1140
TCS/CIRC P1212 1212 2 —EC-1141
THERMSTAT FNCTN P0128 0128 2×EC-861
TP SEN 1/CIRC P0222 0222 1×EC-942
TP SEN 1/CIRC P0223 0223 1×EC-942
TP SEN 2/CIRC P0122 0122 1×EC-848
TP SEN 2/CIRC P0123 0123 1×EC-848
TP SENSOR P2135 2135 1×EC-1239
TURBINE REV S/CIRC P1716 1716 2×AT- 1 4 3
TW CATALYST SYS-B1 P0420 0420 2×EC-971
TW CATALYST SYS-B2 P0430 0430 2×EC-971
V/SP SEN(A/T OUT) P1720 1720 2 —EC-1216
VEH SPD SEN/CIR AT*6P0720 0720 2×AT- 11 6
VEH SPEED SEN/CIRC*6P0500 0500 2×EC-1046
VENT CONTROL VALVE P0447 0447 2×EC-997
VENT CONTROL VALVE P1446 1446 2×EC-1168
Items
(CONSULT-II screen terms)DTC*
1
TripMIL lighting
upReference page
CONSULT-II
GST*
2ECM*3

EC-670
[VK45DE]
PRECAUTIONS
Revision: 2004 November 2004 FX35/FX45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
ABS00BYX
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.
On Board Diagnostic (OBD) System of Engine and A/TABS00BYY
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-74, "
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.
PrecautionABS00BYZ

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
battery 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 ignition switch OFF and then
disconnect battery ground cable.
SEF289H

PRECAUTIONS
EC-673
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Revision: 2004 November 2004 FX35/FX45

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 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.
Wiring Diagrams and Trouble DiagnosisABS00BZ0
When you read wiring diagrams, refer to the following:

GI-15, "How to Read Wiring Diagrams"

PG-3, "POWER SUPPLY ROUTING CIRCUIT" for power distribution circuit
When you perform trouble diagnosis, refer to the following:

GI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"

GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident"
PBIB1508E
SEF709Y
SEF708Y

EC-674
[VK45DE]
PREPARATION
Revision: 2004 November 2004 FX35/FX45
PREPARATIONPFP:00002
Special Service ToolsABS00BZ1
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 sensors
with 22 mm (0.87 in) hexagon nut
KV10114400
(J-38365)
Heated oxygen
sensor wrenchLoosening or tightening heated oxygen sensors
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-675
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Revision: 2004 November 2004 FX35/FX45
Commercial Service ToolsABS00BZ2
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