Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti M45 M35 Y50 2006-2007 Approved M45_M35-Y50-2007 acs

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acs

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AUTO CRUISE CONTROL SYSTEM

K ELECTRICAL

AUTO CRUISE CONTROL SYSTEM
SECTION ACS B

E
CONTENTS
ASCD LASER BEAM AIMING ADJUSTMENT .................. 15 . F
Outline ................................................................... 15
.
AUTOMATIC SPEED CONTROL DEVICE (ASCD) 3 ..... Preparation ............................................................ 15
.
Description .............................................................. 3
. Outline of Adjustment Procedure ........................... 15 . G
Setting the ICC Target Board ................................. 15 .
ICC ADJUSTING HEIGHT OF THE TARGET ........... 15 .
ADJUSTING THE RIGHT-LEFT POSITION OF
PRECAUTIONS ......................................................... 4 . H
THE TARGET ..................................................... 16 .
Precautions for Supplemental Restraint System SETTING THE TARGET .................................... 16 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Aiming Adjustment ................................................. 18 .
SIONER" ................................................................. 4
. CHECK AFTER THE ADJUSTMENT ................. 20 . I
Precautions for ICC System Service ....................... 4 . ELECTRICAL UNITS LOCATION ........................... 21 .
PREPARATION .......................................................... 5 . Component Parts and Harness Connector Location 21 ...
Special Service Tools .............................................. 5 . WIRING DIAGRAM .................................................. 22 . J
DESCRIPTION ........................................................... 6. Schematic .............................................................. 22
.
Outline ..................................................................... 6
. Wiring Diagram -- ICC -- ..................................... 23 .
VEHICLE-TO-VEHICLE DISTANCE CONTROL TERMINALS AND REFERENCE VALUE ................ 28 .
MODE .................................................................. 6
. ACS
Terminals and Reference Value for ICC Sensor Inte-
CONVENTIONAL (FIXED SPEED) CRUISE grated Unit ............................................................. 28
.
CONTROL MODE ................................................ 6 . TROUBLE DIAGNOSIS - GENERAL DESCRIP-
BRAKE ASSIST (WITH PREVIEW FUNCTION) 6 ..... TION ......................................................................... 29
. L
Functional Diagram ................................................. 7 . Fail-Safe Function ................................................. 29 .
Components Description ......................................... 9 . Work Flow .............................................................. 29
.
CAN Communication ............................................... 9 . CONSULT-II Function (ICC) .................................. 30 . M
CAN COMMUNICATION UNIT ............................ 9 . DESCRIPTION ................................................... 30 .
Switch Operation ................................................... 10 . CONSULT-II BASIC OPERATION ...................... 30 .
IN VEHICLE-TO-VEHICLE DISTANCE CON- WORK SUPPORT .............................................. 30 .
TROL MODE ...................................................... 10 . SELF-DIAGNOSTIC RESULTS .......................... 31 .
IN CONVENTIONAL (FIXED SPEED) CRUISE DATA MONITOR ................................................ 31 .
CONTROL MODE .............................................. 10 . ACTIVE TEST .................................................... 33 .
ICC System Display ...............................................11 . Self-Diagnostic Function ........................................ 34 .
IN VEHICLE-TO-VEHICLE DISTANCE CON- WITH CONSULT-II ............................................. 34 .
TROL MODE .......................................................11 . WITHOUT CONSULT-II ...................................... 35 .
IN CONVENTIONAL (FIXED SPEED) CRUISE SELF-DIAGNOSIS BY DOT MATRIX LCD WILL
CONTROL MODE ...............................................11 . NOT RUN ........................................................... 36 .
ACTION TEST ......................................................... 12 . TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC
ICC System Running Test ..................................... 12 . ITEMS ....................................................................... 40
.
VEHICLE-TO-VEHICLE DISTANCE CONTROL Diagnostic Trouble Code (DTC) Chart .................. 40 .
MODE ................................................................ 12
. DTC 0 CONTROL UNIT ........................................ 42 .
CONVENTIONAL (FIXED SPEED) CRUISE DTC 1 POWER SUPPLY CIR, DTC 2 POWER SUP-
CONTROL MODE .............................................. 13 .

Revision: 2007 April ACS-1 2007 M35/M45
PLY CIR 2 .............................................................. 42
. Symptom 2: ICC System Cannot Be Set (MAIN
DTC 3 VHCL SPEED SE CIRC ............................. 43 . Switch Turns ON/OFF) ...........................................64 .
DTC 4 ABS/TCS/VDC CIRC ................................. 43 . Symptom 3: ICC System Cannot Be Operated by
DTC 5 BRAKE SW/STOP L SW ............................ 44 . CANCEL Switch, RESUME/ACCELERATE Switch
DTC 6 OPERATION SW CIRC .............................. 48 . or DISTANCE Switch .............................................65 .
DTC 12 LASER BEAM OFFCNTR ........................ 49 . Symptom 4: ICC System Is Not Cancelled When
DTC 13 STOP LAMP RLY FIX .............................. 50 . the A/T Selector Lever Is In Other Than "D" and "M"...65
DTC 14 ECM CIRCUIT .......................................... 56 . Symptom 5: Chime Does Not Sound .....................66 .
DTC 15 GEAR POSITION ..................................... 57 . Symptom 6: Driving Force Is Hunting ....................67 .
DTC 16 RADAR STAIN ......................................... 58 . Symptom 7: ICC System Frequently Cannot Detect
DTC 18 LASER AIMING INCMP ........................... 58 . the Vehicle Ahead/ Detection Zone Is Short ..........67 .
DTC 21 UNIT HIGH TEMP .................................... 58 . Symptom 8: The System Does Not Detect the Vehi-
DTC 24 NP RANGE .............................................. 59 . cle Ahead at All ......................................................68
.
DTC 25 SHIFT RANGE IND .................................. 59 . ELECTRICAL COMPONENT INSPECTION ............69 .
DTC 26 ECD MODE MALF ................................... 60 . ICC Steering Switch ...............................................69
.
DTC 27 ECD PWR SUPLY CIR ............................. 60 . ICC Brake Hold Relay ............................................69 .
DTC 100 CAN COMM CIRCUIT ............................ 61 . ICC Brake Switch and Stop Lamp Switch ..............69 .
DTC 110 CONTROL UNIT (CAN) .......................... 61 . REMOVAL AND INSTALLATION .............................70 .
TROUBLE DIAGNOSIS FOR SYMPTOMS ............. 62 . ICC Sensor Integrated Unit ....................................70 .
Symptom Chart ...................................................... 62
. REMOVAL ...........................................................70
.
Symptom 1: MAIN Switch Does Not Turn ON* , 1 INSTALLATION ...................................................70.
ICC Steering Switch ...............................................70
.
MAIN Switch Does Not Turn OFF*2 ....................... 63 .

Revision: 2007 April ACS-2 2007 M35/M45
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
[ASCD]
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
[ASCD] PFP:18930
A
Description NKS004CB

Regarding the information for ASCD system, refer to EC-36, "AUTOMATIC SPEED CONTROL DEVICE
(ASCD)" (VQ35DE), EC-738, "AUTOMATIC SPEED CONTROL DEVICE (ASCD)" (VK45DE). B

ACS

Revision: 2007 April ACS-3 2007 M35/M45
PRECAUTIONS
[ICC]
PRECAUTIONS
[ICC] PFP:00001

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" NKS004CC

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:
q 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.
q 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.
q 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.
Precautions for ICC System Service NKS004CD

q Do not look straight into the laser beam discharger when adjusting laser beam aiming.
q Turn the MAIN switch OFF in conditions similar to driving, such as free rollers or a chassis dynamometer.
q Do not use the ICC sensor integrated unit removing from vehicle. Never disassemble and remodel.
q Erase DTC when replacing parts of ICC system, then check the operation of ICC system after adjusting
laser beam aiming if necessary.

Revision: 2007 April ACS-4 2007 M35/M45
PREPARATION
[ICC]
PREPARATION PFP:00002
A
Special Service Tools NKS004CE

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
B
(Kent - Moore No.) Description
Tool name
C

KV99110100
(J-45718) Uses for laser beam aiming adjustment D
ICC target board

PKIA0358J
E

ACS

Revision: 2007 April ACS-5 2007 M35/M45
DESCRIPTION
[ICC]
DESCRIPTION PFP:00000

Outline NKS004CF

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
Vehicle-to-vehicle distance control mode, the driver can maintain the same speed as other vehicles without
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 ICC sensor integrated unit detects a slower moving vehicle ahead, the system will reduce speed so that
the vehicle ahead can be followed at the selected distance.
The system automatically controls the throttle and applies the brakes (up to 25% of vehicle braking power) if
necessary.
The detection range of the sensor is approximately 390 ft (120 m) ahead.
Refer to Owner's Manual for Intelligent Cruise Control System operating instructions.
CONVENTIONAL (FIXED SPEED) CRUISE CONTROL MODE
Conventional (fixed speed) cruise control 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 conventional 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
depresses the brake pedal and improves brake response by reducing its free play.
Refer to Owner's Manual for BRAKE ASSIST (WITH PREVIEW FUNCTION) operating instructions.

Revision: 2007 April ACS-6 2007 M35/M45
DESCRIPTION
[ICC]
Functional Diagram NKS004F8

SKIB9221E I

Items of input/output signal to be checked with CONSULT-II
J
q Items of input signal to be checked with "DATA MONITOR".
Monitored Item
Signal name CAN Transmission unit Description
[unit] ACS
Accelerator pedal THRTL OPENING ICC sensor integrated unit receives accelerator pedal posi-

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