service INFINITI FX35 2008 Service Manual

ACC-1
ENGINE
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SECTION ACC
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CONTENTS
ACCELERATOR CONTROL SYSTEM
SERVICE INFORMATION .. ..........................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
ACCELERATOR CONTROL SYSTEM ..............3
Component .......................................................... .....3
Removal and Installation ..........................................3
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ACC-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612922
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty 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 w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, 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 performed by
an authorized NISS AN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
 Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
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ACCELERATOR CONTROL SYSTEMACC-3
< SERVICE INFORMATION >
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ACCELERATOR CONTROL SYSTEM
ComponentINFOID:0000000001327118
Removal and InstallationINFOID:0000000001327119
REMOVAL
1. Disconnect accelerator pedal position sensor harness connector.
2. Loosen mounting nuts, and remove accelerator pedal assembly.
CAUTION:
 Do not disassemble accelerator pedal assembly. Do not remove accelerator pedal position sen-sor from accelerator pedal assembly.
 Avoid impact from dropping etc. during handling.
 Be careful to keep accelerator pedal assembly away from water.
INSTALLATION
Installation is the reverse order of removal.
INSPECTION AFTER INSTALLATION
 Make sure accelerator pedal moves smoothly within the whole operation range when it is fully depressed and released.
 Make sure accelerator pedal securely returns to the fully released position.
 For the electrical inspection of accelerator pedal position sensor, refer to the following.
- VQ35DE EC-506, "
Component Description", EC-512, "Component Description" and EC-524, "Component Descrip-
tion"
- VK45DE
EC-1104, "
Component Description", EC-1110, "Component Description" and EC-1122, "Component
Description"
CAUTION:
When harness connector of accelerator pedal posi tion sensor is disconnected, perform “Accelerator
Pedal Released Position Learning”. Refer to EC-85, "
Accelerator Pedal Released Position Learning"
(VQ35DE) or EC-662, "Accelerator Pedal Released Position Learning" (VK45DE).
1. Accelerator pedal assembly
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ACS-1
ELECTRICAL
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SECTION ACS
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CONTENTS
AUTO CRUISE CONTROL SYSTEM
ASCD
SERVICE INFORMATION .. ..........................
3
AUTOMATIC SPEED CONTROL DEVICE
(ASCD) ........................................................... .....
3
Description .......................................................... ......3
ICC
SERVICE INFORMATION .. ..........................
4
DTC INDEX ..................................................... .....4
DTC 11 - 65 ......................................................... ......4
DTC 74 - 109 .............................................................4
PRECAUTIONS ...................................................5
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
5
Precaution for ICC System Service ...........................5
PREPARATION ...................................................6
Special Service Tool ........................................... ......6
DESCRIPTION ....................................................7
Outline ................................................................. ......7
Functional Diagram ...................................................7
Component Description .............................................9
CAN Communication .................................................9
Switch Operation .....................................................10
ICC System Display ................................................10
ACTION TEST ....................................................11
ICC System Running Test ................................... ....11
LASER BEAM AIMING ADJUSTMENT .............14
Outline ................................................................. ....14
Preparation ..............................................................14
Outline of Adjustment Procedure ............................14
Setting the ICC Target Board ..................................14
Aiming Adjustment ..................................................16
ELECTRICAL UNITS LOCATION ....................18
Component Parts and Harness Connector Loca-
tion ....................................................................... ....
18
WIRING DIAGRAM ...........................................19
Schematic ................................................................19
Wiring Diagram - ICC - ............................................20
TERMINALS AND REFERENCE VALUE .........27
Terminal and Reference Value for ICC Unit ............27
Terminal and Reference Value for ICC Sensor ... ....28
TROUBLE DIAGNOSIS — GENERAL DE-
SCRIPTION .......................................................
29
Work Flow ................................................................29
CONSULT-III Function (ICC) ...................................29
Self-Diagnostic Function ..........................................32
TROUBLE DIAGNOSIS FOR SELF-DIAG-
NOSTIC ITEMS .................................................
35
Diagnostic Trouble Code (DTC) Chart ....................35
DTC 11 CONTROL UNIT ........................................36
DTC 20 CAN COMM CIRCUIT ................................36
DTC 31 POWER SUPPLY CIR, DTC 34 POWER
SUPPLY CIR 2 ........................................................
37
DTC 41 VHCL SPEED SE CIRC .............................37
DTC 43 ABS/TCS/VDC CIRC .................................38
DTC 45 BRAKE SW/STOP L SW ............................38
DTC 46 OPERATION SW CIRC ......................... ....40
DTC 61 PRESS SEN CIRCUIT ...............................41
DTC 62 BOOSTER SOL/V CIRCUIT .................. ....42
DTC 63 RELEASE SW CIRCUIT ............................43
DTC 65 PRESSURE CONTRO L .............................45
DTC 74 LASER BEAM OFF CNTR ..................... ....45
DTC 90 STOP LAMP RLY FIX ................................46
DTC 92 ECM CIRCUIT ............................................50
DTC 96 NP RANGE ................................................51
DTC 97 AT CIRCUIT ...............................................52
DTC 98 GEAR POSITION .......................................52
DTC 102 RADAR STAIN .........................................53
DTC 103 LASER SENSOR FAIL .............................53
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AUTOMATIC SPEED CONTROL DEVICE (ASCD)ACS-3
< SERVICE INFORMATION > [ASCD]
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SERVICE INFORMATION
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
DescriptionINFOID:0000000001328801
Regarding the information for ASCD system, refer to EC-37 (VQ35DE), EC-615 (VK45DE).
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ACS-4
< SERVICE INFORMATION >[ICC]
DTC INDEX
SERVICE INFORMATION
DTC INDEX
DTC 11 - 65INFOID:0000000001544468
DTC 74 - 109INFOID:0000000001544469
DTC Items (CONSULT screen terms) Reference
11 CONTROL UNIT ACS-36, "
DTC 11 CONTROL UNIT"
20 CAN COMM CIRCUIT ACS-36, "DTC 20 CAN COMM CIRCUIT"
31 POWER SUPPLY CIR
ACS-37, "DTC 31 POWER SUPPLY CIR, DTC 34 POWER SUPPLY CIR 2"34 POWER SUPPLY CIR 2
41 VHCL SPEED SE CIRCACS-37, "
DTC 41 VHCL SPEED SE CIRC"
43 ABS/TCS/VDC CIRCACS-38, "DTC 43 ABS/TCS/VDC CIRC"
45 BRAKE SW/STOP L SWACS-38, "DTC 45 BRAKE SW/STOP L SW"
46 OPERATION SW CIRCACS-40, "DTC 46 OPERATION SW CIRC"
61 PRESS SEN SIRCUITACS-41, "DTC 61 PRESS SEN CIRCUIT"
62 BOOSTER SOL/V CIRCUITACS-42, "DTC 62 BOOSTER SOL/V CIRCUIT"
63 RELEASE SW CIRCUITACS-43, "DTC 63 RELEASE SW CIRCUIT"
65 PRESSURE CONTROLACS-45, "DTC 65 PRESSURE CONTROL"
DTC Items (CONSULT screen terms) Reference
74 LASER BEAM OFF CNTR ACS-45, "
DTC 74 LASER BEAM OFF CNTR"
90 STOP LAMP RLY FIXACS-46, "DTC 90 STOP LAMP RLY FIX"
92 ECM CIRCUITACS-50, "DTC 92 ECM CIRCUIT"
96 NP RANGEACS-51, "DTC 96 NP RANGE"
97 AT CIRCUITACS-52, "DTC 97 AT CIRCUIT"
98 GEAR POSITIONACS-52, "DTC 98 GEAR POSITION"
102 RADAR STAIN ACS-53, "DTC 102 RADAR STAIN"
103 LASER SENSOR FAILACS-53, "DTC 103 LASER SENSOR FAIL"
104 LASER AIMING INCMPACS-54, "DTC 104 LASER AIMING INCMP"
107 LASER COMM FAILACS-54, "DTC 107 LASER COMM FAIL"
109 LASER HIGH TEMPACS-54, "DTC 109 LASER HIGH TEMP"
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PRECAUTIONSACS-5
< SERVICE INFORMATION > [ICC]
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PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612901
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty 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 “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
 To avoid rendering the SRS inoper ative, 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 performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
 Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
Precaution for ICC System ServiceINFOID:0000000001328803
 Never look straight into the laser beam discharger when adjusting laser beam aiming.
 Turn the MAIN switch OFF in conditions similar to dr iving, such as free rollers or a chassis dynamometer.
 Do not use the ICC sensor removing from v ehicle, disassemble, or remodel the sensor.
 Erase DTC when replacing parts of ICC system, then c heck the operation of ICC system after adjusting laser
beam aiming if necessary.
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ACS-6
< SERVICE INFORMATION >[ICC]
PREPARATION
PREPARATION
Special Service ToolINFOID:0000000001328804
The actual shapes of Kent-Moore tools may differ fr
om those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name Description
KV99110100
(J-45718)
ICC target board Uses for laser beam aiming adjustment
PKIA0358J
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DESCRIPTIONACS-7
< SERVICE INFORMATION > [ICC]
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DESCRIPTION
OutlineINFOID:0000000001328805
The Intelligent Cruise Control (ICC) system automatically maintains a selected distance from the vehicle
ahead according to that vehicle's speed, or at the set speed, if the road ahead is clear.
The ICC function has two cruise control modes and brake assist (with preview function).
VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE
With vehicle-to-vehicle distance control mode, the driver can maintain the same speed as other vehicles with-
out the constant need to adjust the set speed as the driver would with a normal cruise control system.
The system is intended to enhance the operation of the vehicle when following the vehicle traveling in the
same lane and direction.
If the distance sensor detects a sl ower moving vehicle ahead, the system wil l reduce speed so that the vehicle
ahead can be followed at the selected distance.
The system automatically controls the throttle and applie s the brakes (up to 25% of vehicle braking power) if
necessary.
The detection range of the sensor is approximately 120 m (390 ft) ahead.
Refer to Owner's Manual for Intelligent Cruise Control System operating instructions.
CONVENTIONAL (FIXED SPEED) CRUISE CONTROL MODE
Conventional (fixed speed) cruise contro l mode is cruising at preset speeds.
Refer to Owner's Manual for Intelligent Cruise Control System operating instructions.
BRAKE ASSIST (WITH PREVIEW FUNCTION)
When the force applied to brake pedal exceeds a certain level, the Brake Assist is activated and generates a
greater braking force than that of a convent ional brake booster even with light pedal force.
When the Preview Function identifies the need to apply the sudden brake by sensing the vehicle ahead in the
same lane and the distance and relative speed from it, it applies the brake pre-pressure before driver depress
the brake pedal and improves brake re sponse by reducing its free play.
Refer to Owner's Manual for BRAKE ASSIST (W ITH PREVIEW FUNCTION) operating instructions.
Functional DiagramINFOID:0000000001328806
Items of input/output signal to be checked with CONSULT-III
PKIC8700E
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ACS-8
< SERVICE INFORMATION >[ICC]
DESCRIPTION
DATA MONITOR INPUT ITEM LIST
DATA MONITOR OUTPUT ITEM LIST
InputData monitored
Item [unit] CAN Description
ECM THRTL OPENING
[%]
×Indicates throttle angle read by ICC unit through CAN communication (ECM transmits
throttle angle through CAN communication).
ENGINE RPM
[rpm] ×
Indicates engine speed read by ICC unit through CAN communication (ECM transmits
engine speed through CAN communication).
MAIN SW
[On/Off] ×Indicates [On/Off] status as judged from steering switch signal (ECM transmits steering
switch signal through CAN communication).
SET/COAST SW
[On/Off] ×Indicates [On/Off] status as judged from steering switch signal (ECM transmits steering
switch signal through CAN communication).
CANCEL SW
[On/Off] ×
Indicates [On/Off] status as judged from steering switch signal (ECM transmits steering
switch signal through CAN communication).
RESUME/ACC SW
[On/Off] ×Indicates [On/Off] status as judged from steering switch signal (ECM transmits steering
switch signal through CAN communication).
IDLE SW
[On/Off] ×Indicates [On/Off] status of idle switch read by ICC unit through CAN communication
(ECM transmits ON/OFF status through CAN communication).
TCM VHCL SPD AT
[km/h] or [mph]
×Indicates vehicle speed calculated from AT vehicle speed sensor by ICC unit through
CAN communication (TCM transmits AT vehicle speed sensor signal through CAN com-
munication).
GEAR
[1, 2, 3, 4, 5] ×Indicates AT gear position read by ICC unit through CAN communication (TCM transmits
gear position through CAN communication).
D RANGE SW
[On/Off] ×
Indicates [On/Off] status of “D” position read by ICC unit through CAN communication
(TCM transmits ON/OFF condition of “D” position through CAN communication).
NP RANGE SW
[On/Off] ×Indicates PNP switch signal read by ICC unit through CAN communication (TCM trans-
mits PNP switch signal through CAN communication).
ABS actuator
and electric
unit (control
unit) VHCL SPEED SE
[km/h] or [mph]
×Indicates vehicle speed calculated from wheel sensor by ICC unit through CAN commu-
nication (ABS actuator and electr
ic unit (control unit) transmits wheel speed sensor signal
through CAN communication).
BCM WIPER SW
[Off/Low/High]
×Indicates wiper [Off/Low/High] status (BCM transmits front wiper request signal through
CAN commun
ication).
Brake pres-
sure sensor PRESS SENS
[bar]
Indicates brake fluid pressure value calculated from signal voltage of pressure sensor.
Release
switch RELEASE SW NO
[On/Off]
Indicates [On/Off] status as judged from release switch signal.
ON when brake is depressed.
OFF when brake is not depressed.
RELEASE SW NC
[On/Off] Indicates [On/Off] status as judged from release switch signal.
ON when brake is not depressed.
OFF when brake is depressed.
ICC brake
switch BRAKE SW
[On/Off]
Indicates [On/Off] status as judged from ICC brake switch signal.
Sto p l am p
switchSTOP LAMP SW
[On/Off]
Indicates [On/Off] status as judged from stop lamp switch signal.
Output Data monitored
Item [unit] CAN Description
ICC warning
chime BUZZER O/P
[On/Off]
×
Indicates [On/Off] status of ICC warning chime output.
ICC brake hold
relay STP LMP DRIVE
[On/Off]
Indicates [On/Off] status of brake hold relay drive output.
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