2008 INFINITI FX35 low beam

ACS-1
ELECTRICAL
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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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PRECAUTIONSACS-5
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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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DESCRIPTIONACS-9
< SERVICE INFORMATION > [ICC]
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ACTIVE TEST ITEM LIST
Component DescriptionINFOID:0000000001328807
CAN CommunicationINFOID:0000000001328808
CAN (Controller Area Network) is a serial communication li ne for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tric control units are equipped onto a vehicle, and eac h control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN COMMUNICATION UNIT
Refer to LAN-43, "CAN System Specification Chart".
Output CONSULT-III ICC
[ACTIVE TEST]
Item CAN Description
Combination
meter ICC BUZZER 1
×Able to start ICC warning chime with a driving signal from ICC unit.
METER LAMP ×Able to turn ICC system display ON with a driving signal from ICC unit.
ICC brake hold
relay STOP LAMP Able to start ICC brake hold relay with a driving signal from ICC unit.
Booster sole-
noid BOOSTER SOL/V
3
Able to start booster solenoid with a driving signal from ICC unit.
ComponentVehicle-to-
vehicle
distance
control mode Conventional
(fixed speed)
cruise
control mode Brake assis
(with preview function) Description
ICC unit ××× Operates electric throttle control actuator and brake
booster based on that sensor signals and CAN commu-
nication data, then controls vehicle distance.
ICC sensor ×× Irradiates laser beam, and receives reflected laser beam
to measure distance from preceding vehicle.
ECM ××× Transmits throttle position signal and ICC steering switch
signal to ICC unit through CAN communication.
ABS actuator and electric
unit (control unit) ××× Transmits wheel speed sensor signal to ICC unit through
CAN communication.
Brake pressure sensor ×× Detects fluid pressure in master cylinder.
Brake booster ×× Adjusts brake fluid pressure, based on command from
ICC unit.
BCM × Transmit front wiper request signal to ICC unit through
CAN communication.
TCM ×× Transmits gear position signal and output shaft revolu-
tion signal to ICC unit through CAN communication.
Unified meter and A/C amp. ××× Receives ICC system display signal, ICC warning lamp
signal and buzzer output signal from ICC unit through
CAN communication.
ICC brake switch, stop lamp
switch ××× Transmit operating signal to ICC unit when touching
brake pedal. ICC unit cancels cruise system at driver's
brake operation.
ICC brake hold relay × Receives stop lamp driving signal from ICC unit, and
turns stop lamp ON.
Parking brake switch ×× The cruise system is cancelled when applied.
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ACS-14
< SERVICE INFORMATION >[ICC]
LASER BEAM AIMING ADJUSTMENT
LASER BEAM AIMING ADJUSTMENT
OutlineINFOID:0000000001328812
Adjust the laser beam aiming every time the ICC sensor is removed or installed.
CAUTION:
 Adjust laser beam aiming at a horizontal place as
far as 12 m (39 ft) forward the vehicle can be seen.
 Adjust laser beam aiming 5 seconds after starting engine.
 Never view ICC sensor integrated un it body window directly during laser beam aiming adjustment.
 Follow the CONSULT-III when adju sting the laser beam aiming (laser beam aiming adjustment can-
not be operated without CONSULT-III).
 Never ride on vehicle during l aser beam aiming adjustment.
 Idle and turn headlamps OFF duri ng laser beam aiming adjustment.
PreparationINFOID:0000000001328813
 Adjust the tire pressure to the specified value.
 See that there is no load in the vehicle.
 Coolant, engine oil filled up to correct level and full fuel tank.
 Shift the gear into “P” position and release the parking brake.
 Clean the ICC sensor with a soft cloth.
Outline of Adjustment ProcedureINFOID:0000000001328814
1. Set up the ICC target board [KV99110100 (J-45718)].
2. Adjust the sensor following the procedure on CONSUL T-III. (Turn manually the screw for up-down position
adjustment. ICC sensor automatically adjust the right-left position.)
Setting the ICC Target BoardINFOID:0000000001328815
Accurate ICC target board setting is required for the laser beam aiming adjustment.
CAUTION:
ICC system does not function normally if laser beam aiming is not accurate.
ADJUSTING HEIGHT OF THE TARGET
1. Attach a triangle scale at the center.
SKIA6179E
SKIA5974E
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ACS-16
< SERVICE INFORMATION >[ICC]
LASER BEAM AIMING ADJUSTMENT
5. Pivot the edge of the target board 20
° to either side.
NOTE:
Approx. 50 mm (1.97 in) shift rates the 20 ° movement.
6. Do not place anything in the space shown in the figure (view from top). NOTE:
In case the space shown in the figure is not availabl e, make space by covering the side of the target board
with a 400 mm (15.75 in)-size frosted black board or black cloth.
Aiming AdjustmentINFOID:0000000001328816
CAUTION:
Never view ICC sensor integrated unit body windo w directly during laser beam aiming adjustment.
NOTE:
Complete all necessary work for laser beam adjustment until the adjustment completes as shown in the proce-
dure. If the procedure does not complete, the ICC system is inoperable.
1. Connect CONSULT-III and select “Work Support” of “ICC”.
2. Select “LASER BEAM ADJUST”.
3. Touch “START”.
NOTE:
If the adjustment screen does not appear on the CO NSULT-III screen in 10 seconds. After touching
“LASER BEAM ADJUST” screen, the following causes may be considered:
 Target is not set accurately.
 There is not enough space beside the target.
 Deformation of vehicle or the surrounding equipm ent unit, bracket, or the surrounding equipment is
causing inappropriate installation of sensor and aiming may be set out of the adjustable range.
 The area is not suitable for the adjustment work.
 ICC sensor is not clean.
 The ICC system warning lamp illuminates.
4. After the CONSULT-III displays “ADJUST THE VER TICAL OF LASER BEAM AIMING” turn the up-down
direction adjusting screw until “U/D CO RRECT” value is set in the range of ±4.
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LASER BEAM AIMING ADJUSTMENTACS-17
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NOTE:
 Turn the screw slowly. The value change on display is slower than actual movement of the ICC sensor.
Wait for 2 seconds every time the screw is turned half a rotation.
 Turning the screw to the right lowers the aiming and to the left lifts the aiming.
5. When “U/D CORRECT” value indicates ±4, confirm that the margin of value remains within ±4 at least for
2 seconds with no equipment or hand touching the ICC sensor.
When “COMPLETED THE VERTICAL AIMING OF LASER BEAM” appears on screen, touch “END”.
NOTE:
Be sure that the margin of “U/D CORRECT” is within ±4 with ICC sensor unit is untouched.
6. Confirm that “ADJUSTING AUTOMATIC HORIZONT AL LASER BEAM AIMING” is on screen and wait for
a while (maximum: 10 seconds).
7. Confirm that “NORMALLY COMPLETED” is disp layed on CONSULT-III and close the aiming adjustment
procedure by touching “END”.
NOTE:
Complete all the procedures once “LASER BEAM AD JUST” mode is entered in CONSULT-III. When the
procedure is discontinued, the ICC system is inoperable.
CHECK AFTER THE ADJUSTMENT
Test the ICC system operation by running test. Refer to ACS-11, "ICC System Running Test".
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ACS-30
< SERVICE INFORMATION >[ICC]
TROUBLE DIAGNOSIS —
GENERAL DESCRIPTION
WORK SUPPORT
Cause of Auto-Cancel
Display Item List
NOTE:
Last five cancel (system cancel) causes are displayed.
SELF DIAGNOSTIC RESULT
For details, refer to ACS-35, "Diagnostic Trouble Code (DTC) Chart".
DATA MONITOR
×: Applicable
Work Support  Monitors aiming direction to facilitate laser beam aiming operation.
 Indicates causes of automatic cancellation of the ICC system.
Ecu Identification Displays part number of ICC unit. Test mode Function
Operation Function
CAUSE OF AUTO-CANCEL Indicates causes of automatic cancellation of the ICC system.
LASER BEAM ADJUST Outputs laser beam, calculates dislocation of the beam, and indicates adjustment direction.
For details, refer to
ACS-14
.
Cause of cancellation Description
OPERATING WIPER Windshield wipers were operated at HI or LO speed operation.
OPERATING ABS ABS func tion was operated.
OPERATING TCS TCS function was operated.
OPERATING VDC VDC function was operated.
OPE SW VOLT CIRC Outside the standard control switch input voltage was detected.
ECM CIRCUIT ECM did not permit ICC operation.
LASER SUN BEAM Intense light such as sunlight entered ICC sensor light sensing part.
LASER TEMP Temperature around ICC sensor became low.
OP SW DOUBLE TOUCH ICC steering switches were pressed at the same time.
WHL SPD ELEC NOISE Wheel speed sensor signal caught electromagnetic noise.
VDC/TCS OFF SW VDC OFF switch was pressed.
WHEEL SPD UNMATCH Wheel speed became different from AT vehicle speed.
TIRE SLIP Wheel slipped.
PKB SW ON Parking brake is applied.
IGN LOW VOLT Power supply voltage became low.
SNOW MODE SW Snow mode switch was pressed.
NO RECORD —
Monitored Item [unit] ECU INPUT
SIGNALS MAIN
SIGNALS SELECTION
FROM
MENU Description
VHCL SPEED SE
[km/h] or [mph] ××× Indicates vehicle speed calculated from ICC unit through CAN
communication [ABS actuator and
electric unit (control unit)
transmits wheel speed sensor signal through CAN communica-
tion].
SET VHCL SPD
[km/h] or [mph] ××
Indicates set vehicle speed memorized in ICC unit.
THRTL OPENING
[%] ××× Indicates throttle angle read from ICC unit through CAN commu-
nication (ECM transmits throttle angle through CAN communica-
tion).
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TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-35
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TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Diagnostic Trouble Code (DTC) ChartINFOID:0000000001328825
×: Applicable
DTC
No. CONSULT-III
screen terms ICC
system
warning lamp Fail-safe
Malfunctions detected where... Refer-
ence
page
Ve h i c l e -
to-
vehicle
distance control mode Conven-
tional
(fixed
speed) cruise
control mode Brake as-
sist (with
preview
function)
11 CONTROL UNIT ××××  ICC unit internal malfunctionACS-36
20 CAN COMM CIRCUIT ××××  ICC unit detected CAN communi-
cation malfunction. ACS-36
31 POWER SUPPLY CIR
××××  ICC unit power supply voltage is
excessively low (less than 8 V). ACS-37
34 POWER SUPPLY CIR2
××××  ICC unit power supply voltage is
excessively high (more than 19 V). ACS-37
41 VHCL SPEED SE CIRC
××××  Wheel sensor malfunction.
 ABS actuator and electric unit
(control unit) malfunction
 AT vehicle speed sensor malfunc- tion
TCM malfunction ACS-37
43 ABS/TCS/VDC CIRC
××××  VDC/TCS/ABS system malfunc-
tion ACS-38
45 BRAKE SW/STOP L SW
××××  Brake and stop lamp switch har-
ness is open or shorted.
 Brake and stop lamp switch is ON
or stuck to OFF.
 Brake and stop lamp switch is stuck to ON. ACS-38
46 OPERATION SW CIRC
×××  ICC steering switch harness or spi-
ral cable is open or shorted.
 ICC steering switch malfunction ACS-40
61 PRESS SEN CIRCUIT
×× ×  Brake pressure sensor harness is
open or shorted.
 Brake pressure sensor malfunction
 Brake pressure sensor input circuit malfunction ACS-41
62
BOOSTER SOL/V
CIRCUIT ×× ×  Solenoid harness is open or short-
ed.
 Solenoid is open.
 Solenoid drive circuit malfunction ACS-42
63 RELEASE SW CIRCUIT
××××  Release switch harness is open or
shorted.
 Release switch malfunction
 Release switch input circuit mal- function ACS-43
65 PRESSURE CONTROL
×× ×  Booster malfunctionACS-45
74 LASER BEAM OFF CNTR ×× ×  Laser beam of ICC sensor is off the
aiming point. ACS-45
90 STOP LAMP RLY FIX
×× ×  Normally open terminal of stop
lamp relay is stuck. ACS-46
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