2008 INFINITI FX35 service

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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
JPBIA0991GB
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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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