cruise control INFINITI QX56 2006 Factory Service Manual
[x] Cancel search | Manufacturer: INFINITI, Model Year: 2006, Model line: QX56, Model: INFINITI QX56 2006Pages: 3383, PDF Size: 51.76 MB
Page 1 of 3383

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QUICK REFERENCE INDEX
AGENERAL INFORMATIONGIGeneral Information
BENGINEEMEngine Mechanical
LUEngine Lubrication System
COEngine Cooling System
ECEngine Control System
FLFuel System
EXExhaust System
ACCAccelerator Control System
CTRANSMISSION/
TRANSAXLEATAutomatic Transmission
DDRIVELINE/AXLETFTransfer
PRPropeller Shaft
FFDFront Final Drive
RFDRear Final Drive
FAXFront Axle
RAXRear Axle
ESUSPENSIONFSUFront Suspension
RSURear Suspension
WTRoad Wheels & Tires
FBRAKESBRBrake System
PBParking Brake System
BRCBrake Control System
GSTEERINGPSPower Steering System
HRESTRAINTSSBSeat Belts
SRSSupplemental Restraint System (SRS)
IBODYBLBody, Lock & Security System
GWGlasses, Window System & Mirrors
RFRoof
EIExterior & Interior
IPInstrument Panel
SESeat
APAdjustable Pedal
JAIR CONDITIONERATCAutomatic Air Conditioner
KELECTRICALSCStarting & Charging System
LTLighting System
DIDriver Information System
WWWiper, Washer & Horn
BCSBody Control System
LANLAN System
AVAudio Visual, Navigation & Telephone System
ACSAuto Cruise Control System
PGPower Supply, Ground & Circuit Elements
LMAINTENANCEMAMaintenance
MINDEXIDXAlphabetical Index
Edition: July 2005
Revision: November 2009
Publication No. SM6E-1J60U2
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© 2009 NISSAN NORTH AMERICA, INC.
All rights reserved. No part of this Service Manual may be reproduced or stored in a retrieval system, or transmitted in any
form, or by any means, electronic, mechanical, photo-copying, recording or otherwise, without the prior written permission
of Nissan North America, Inc.
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ACS-1
AUTO CRUISE CONTROL SYSTEM
K ELECTRICAL
CONTENTS
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ASCD
AUTOMATIC SPEED CONTROL DEVICE (ASCD) ..... 3
Description .......................................................... ..... 3
ICC
PRECAUTIONS ..................................................... ..... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 4
Precautions for ICC System Service ................... ..... 4
PREPARATION ...................................................... ..... 5
Special Service Tool ............................................ ..... 5
DESCRIPTION ....................................................... ..... 6
Outline ................................................................. ..... 6
VEHICLE-TO-VEHICLE DISTANCE CONTROL
MODE .............................................................. ..... 6
CONVENTIONAL (FIXED SPEED) CRUISE
CONTROL MODE ............................................ ..... 6
BRAKE ASSIST (WITH PREVIEW FUNCTION) ..... 6
System Diagram .................................................. ..... 6
Components Description ..................................... ..... 7
CAN Communication ........................................... ..... 7
SYSTEM DESCRIPTION ................................. ..... 7
Switch Operation ................................................. ..... 7
ICC System Display ............................................ ..... 8
ACTION TEST ....................................................... ..... 9
ICC System Running Test ................................... ..... 9
VEHICLE-TO-VEHICLE DISTANCE CONTROL
MODE .............................................................. ..... 9
CONVENTIONAL (FIXED SPEED) CRUISE
CONTROL MODE ............................................ ... 10
LASER BEAM AIMING ADJUSTMENT ................ ... 12
Outline of Laser Beam Aiming Adjustment Proce-
dure ..................................................................... ... 12
Preparation .......................................................... ... 12
Setting up the ICC Target Board ......................... ... 12
ADJUSTING HEIGHT OF THE TARGET ......... ... 12
ADJUSTING THE POSITION OF THE TARGET
BOARD STRING .............................................. ... 13POSITIONING THE TARGET ..........................
... 13
Sensor Adjustment .............................................. ... 14
CHECK AFTER THE ADJUSTMENT ............... ... 17
ELECTRICAL UNITS LOCATION ......................... ... 18
Component Parts and Harness Connector Location ... 18
WIRING DIAGRAM ................................................ ... 19
Schematic ............................................................ ... 19
Wiring Diagram — ICC — ................................... ... 20
TERMINALS AND REFERENCE VALUE .............. ... 24
Terminals and Reference Values for ICC Unit ..... ... 24
Terminals and Reference Values for ICC Sensor ... 24
TROUBLE DIAGNOSIS — GENERAL DESCRIP-
TION ....................................................................... ... 25
Work Flow ............................................................... 25
CONSULT-II Function (ICC) ................................ ... 26
CONSULT-II OPERATION ................................ ... 26
WORK SUPPORT ............................................ ... 27
SELF-DIAGNOSTIC RESULTS ........................ ... 28
DATA MONITOR .............................................. ... 28
ACTIVE TEST ..................................................... 30
Self-Diagnostic Function ...................................... ... 31
WITH CONSULT-II ........................................... ... 31
WITHOUT CONSULT-II .................................... ... 32
SELF-DIAGNOSIS BY ICC SYSTEM DISPLAY
WILL NOT RUN ................................................ ... 33
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC
ITEMS ..................................................................... ... 36
Diagnostic Trouble Code (DTC) Chart ................ ... 36
DTC 11 CONTROL UNIT .................................... ... 37
DTC 12 VDC CONTROL UNIT ............................ ... 37
DTC 20 CAN COMM CIRCUIT ............................ ... 38
DTC 31 POWER SUPPLY CIR1, DTC 34 POWER
SUPPLY CIR2 ........................................................ 38
DTC 41 VHCL SPEED SE CIRC ......................... ... 39
DTC 43 VDC/TCS/ABS CIRC ............................. ... 39
DTC 45 BRAKE SW/STOP L SW ........................ ... 40
DTC 46 OPERATION SW CIRC .......................... ... 41
DTC 74 LASER BEAM OFF CNTR ..................... ... 42
DTC 90 STOP LAMP RLY FIX ............................... 43
DTC 92 ECM CIRCUIT ........................................ ... 47
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![INFINITI QX56 2006 Factory Service Manual ACS-6
[ICC]
DESCRIPTION
Revision: November 20092006 QX56
DESCRIPTIONPFP:00000
OutlineEKS00BLG
The Intelligent Cruise Control (ICC) system automatically maintains a selected distance from the vehicle
a INFINITI QX56 2006 Factory Service Manual ACS-6
[ICC]
DESCRIPTION
Revision: November 20092006 QX56
DESCRIPTIONPFP:00000
OutlineEKS00BLG
The Intelligent Cruise Control (ICC) system automatically maintains a selected distance from the vehicle
a](/img/42/57028/w960_57028-18.png)
ACS-6
[ICC]
DESCRIPTION
Revision: November 20092006 QX56
DESCRIPTIONPFP:00000
OutlineEKS00BLG
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). The ICC system may
AUTO-CANCEL for various reasons, for example, when the windshield wipers are operating.
VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE
Vehicle-to-vehicle distance control mode, the same speed as other vehicles, can be maintained without the
constant need to adjust the operating speed as with a conventional cruise control system.
The system is intended to enhance the operation of the vehicle when following another vehicle in the same
lane and direction.
If the distance sensor 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 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 control mode is cruising at preset speeds.
Refer to Owner's Manual for Intelligent Cruise Control System operation 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 Intelligent Cruise Control System operating instructions.
System DiagramEKS00BLH
WKIA1976E
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![INFINITI QX56 2006 Factory Service Manual DESCRIPTIONACS-7
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Components DescriptionEKS00BLI
CAN CommunicationEKS00BLJ
SYSTEM DESCRIPTION
Refer to LAN-26, "CAN COMMUNICATION" .
S INFINITI QX56 2006 Factory Service Manual DESCRIPTIONACS-7
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Components DescriptionEKS00BLI
CAN CommunicationEKS00BLJ
SYSTEM DESCRIPTION
Refer to LAN-26, "CAN COMMUNICATION" .
S](/img/42/57028/w960_57028-19.png)
DESCRIPTIONACS-7
[ICC]
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Components DescriptionEKS00BLI
CAN CommunicationEKS00BLJ
SYSTEM DESCRIPTION
Refer to LAN-26, "CAN COMMUNICATION" .
Switch OperationEKS00BLK
The system is operated by a master ON/OFF switch and four control switches, all mounted on the steering
wheel.
Component Vehicle-to-vehicle
distance control mode Conventional
(fixed speed)
cruise control mode Brake assist
(with preview brake) Description
ICC unit ××× Controls vehicle speed through ECM via CAN
communication.
ICC sensor ×× Irradiate laser beam, and receives reflected
laser beam to measure distance from preceding
vehicle.
ECM ××× Transmits throttle position signal and ICC steer-
ing switch signal to ICC unit.
ABS actuator and electric
unit (control unit) ××× Transmits wheel speed signal to ICC unit.
Operates brake booster based on CAN commu-
nication.
Brake pressure sensor ×× Detects fluid pressure in master cylinder.
Brake booster ×× Adjusts brake fluid pressure based on command
from ABS actuator and electric unit (control
unit).
BCM × Transmit front wiper request signal to ICC unit.
TCM ×× Transmits gear position signal and output shaft
revolution signal to ICC unit.
No.
Switch name Description
1 ACCEL/RES switch Resumes set speed or increases speed incrementally.
2 COAST/SET switch Sets desired cruise speed, reduces speed incrementally.
3 ON/OFF switch Master switch to activate the system.
SKIA5973E
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![INFINITI QX56 2006 Factory Service Manual ACS-8
[ICC]
DESCRIPTION
Revision: November 20092006 QX56
ICC System DisplayEKS00BLL
4 CANCEL switchDeactivates system without erasing set speed.
5 DISTANCE switch Changes the following distance from: INFINITI QX56 2006 Factory Service Manual ACS-8
[ICC]
DESCRIPTION
Revision: November 20092006 QX56
ICC System DisplayEKS00BLL
4 CANCEL switchDeactivates system without erasing set speed.
5 DISTANCE switch Changes the following distance from:](/img/42/57028/w960_57028-20.png)
ACS-8
[ICC]
DESCRIPTION
Revision: November 20092006 QX56
ICC System DisplayEKS00BLL
4 CANCEL switchDeactivates system without erasing set speed.
5 DISTANCE switch Changes the following distance from: Long, Middle, Short.
No.
Switch name Description
WKIA1977E
No. Component Description
1 Set vehicle speed indicator Indicates the set vehicle speed.
2 Vehicle ahead detection indicator Indicates whether it detects a vehicle ahead.
3 Set distance indicator Display the selected distance between vehicles set with the DISTANCE
switch.
4 Own vehicle indicator Indicates the base vehicle.
5 ON/OFF switch indicator lamp (Green) Indicates that the system is ON.
6 Intelligent cruise control system warning
lamp (Orange)
The light comes on if there is a malfunction in the ICC system.
7 Cruise set switch indicator lamp Indicates that the conventional cruise control mode is on.
Page 22 of 3383
![INFINITI QX56 2006 Factory Service Manual ACTION TESTACS-9
[ICC]
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ACTION TESTPFP:00000
ICC System Running TestEKS00BLM
VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE
SET CHECKING
1. Press INFINITI QX56 2006 Factory Service Manual ACTION TESTACS-9
[ICC]
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ACTION TESTPFP:00000
ICC System Running TestEKS00BLM
VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE
SET CHECKING
1. Press](/img/42/57028/w960_57028-21.png)
ACTION TESTACS-9
[ICC]
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ACTION TESTPFP:00000
ICC System Running TestEKS00BLM
VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE
SET CHECKING
1. Press the ON/OFF switch for less than 1.5 seconds.
2. Drive the vehicle between 40 km/h (25 MPH) and 144 km/h (89 MPH).
3. Push the COAST/SET switch.
4. Confirm that the desired speed is set as the COAST/SET switch is released.
NOTE:
When there is no vehicle ahead, drive at the set speed steadily.
When there is a vehicle ahead, control to maintain distance from the vehicle ahead, watching its speed.
The set vehicle speed is displayed on the ICC system indicator in the combination meter.
CHECK FOR INCREASE OF THE CRUISING SPEED
1. Set vehicle-to-vehicle distance control mode at desired speed.
2. Check if the set speed increases by 1.6 km/h (1 MPH) as ACCEL/RES switch is pushed.
NOTE:
The maximum set speed of the vehicle-to-vehicle distance control mode is 144 km/h (89 MPH).
CHECK FOR DECREASE OF THE CRUISING SPEED
1. Set vehicle-to-vehicle distance control mode at desired speed.
2. Check if the set speed decreases by 1.6 km/h (1 MPH) as COAST/SET switch is pushed.
NOTE:
Vehicle-to-vehicle distance control mode is automatically turned off when the driving speed lowers to 32
km/h (20 MPH) due to the deceleration of the vehicle ahead.
The minimum set speed of the vehicle-to-vehicle distance control mode is 40 km/h (25 MPH).
CHECK FOR THE CANCELLATION OF VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE
(NORMAL DRIVING CONDITION) IN THE FOLLOWING CASES:
1. When the brake pedal is depressed after the system is turned on.
2. When the selector lever is shifted to the "N" (Neutral) position.
3. When the system is turned off.
4. When CANCEL switch is operated.
CHECK FOR RESTORING THE SPEED THAT IS SET BY VEHICLE-TO-VEHICLE DISTANCE
CONTROL MODE BEFORE CANCELLATION
1. Cancel the system by depressing the brake. Then, check that the speed before cancellation is restored
when pressing ACCEL/RES switch with vehicle speed at 40 km/h (25 MPH) or above.
2. Cancel the system by shifting the selector lever to “N”. Then, check if the speed set before the cancella-
tion is restored when ACCEL/RES switch is pressed.
3. Check if the speed previously set is restored when ACCEL/RES switch is operated when driving 40 km/h (25 MPH) or above, after canceling vehicle-to-vehicle distance control mode by operating the CANCEL
switch.
CHECK ON/OFF SWITCH OPERATION
1. Start the engine. Then, check that the following operations areperformed correctly.
2. Vehicle-to-vehicle distance control mode is displayed when ON/ OFF switch is pressed ON. Vehicle-to-vehicle distance control
mode goes off when ON/OFF switch is turned to OFF.
3. Turn off the ignition switch while ON/OFF switch is ON. Turn the ignition switch back to ON and confirm that CRUISE lamp and
ICC system display are OFF.
WKIA1978E
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![INFINITI QX56 2006 Factory Service Manual ACS-10
[ICC]
ACTION TEST
Revision: November 20092006 QX56
CHECK FOR ACCEL/RES, COAST/SET, CANCEL SWITCHES
1. Check if ACCEL/RES, COAST/SET, CANCEL switches operate smoothly.
2. Check if switch buttons INFINITI QX56 2006 Factory Service Manual ACS-10
[ICC]
ACTION TEST
Revision: November 20092006 QX56
CHECK FOR ACCEL/RES, COAST/SET, CANCEL SWITCHES
1. Check if ACCEL/RES, COAST/SET, CANCEL switches operate smoothly.
2. Check if switch buttons](/img/42/57028/w960_57028-22.png)
ACS-10
[ICC]
ACTION TEST
Revision: November 20092006 QX56
CHECK FOR ACCEL/RES, COAST/SET, CANCEL SWITCHES
1. Check if ACCEL/RES, COAST/SET, CANCEL switches operate smoothly.
2. Check if switch buttons rebound as the buttons are released.
CHECK FOR DISTANCE SWITCH
1. Start the engine.
2. Press the ON/OFF switch for less than 1.5 seconds.
3. Press the DISTANCE switch.
4. Check if the set distance indicator changes display in order of:
(long) →(middle) →(short).
NOTE:
The set distance indicator shows long immediately after the engine starts.
CONVENTIONAL (FIXED SPEED) CRUISE CONTROL MODE
SET CHECKING
1. Press the ON/OFF switch for more than 1.5 seconds.
2. Drive the vehicle between 40 km/h (25 MPH) and 144 km/h (89 MPH).
3. Push the COAST/SET switch.
4. Confirm that the desired speed is set when the COAST/SET switch is released.
NOTE:
ICC system display in the combination meter shows nothing.
SKIA6178E
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![INFINITI QX56 2006 Factory Service Manual ACTION TESTACS-11
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CHECK FOR INCREASE OF THE CRUISING SPEED
1. Set the conventional (fixed speed) cruise control mode at desired speed INFINITI QX56 2006 Factory Service Manual ACTION TESTACS-11
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CHECK FOR INCREASE OF THE CRUISING SPEED
1. Set the conventional (fixed speed) cruise control mode at desired speed](/img/42/57028/w960_57028-23.png)
ACTION TESTACS-11
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CHECK FOR INCREASE OF THE CRUISING SPEED
1. Set the conventional (fixed speed) cruise control mode at desired speed.
2. Check if the set speed increases by 1.6 km/h (1 MPH) as ACCEL/RES switch is pushed.
NOTE:
If the ACCEL/RES switch is held, the vehicle speed increases until the switch is released.
The maximum set speed is 144 km/h (89 MPH).
CHECK FOR DECREASE OF THE CRUISING SPEED
1. Set the conventional (fixed speed) cruise control mode at desired speed.
2. Check if the set speed decreases by 1.6 km/h (1 MPH) as COAST/SET switch is pushed.
NOTE:
Conventional (fixed speed) cruise control mode is automatically turned off when the driving speed lowers
to 32 km/h (20 MPH).
The lowest set speed is 40 km/h (25 MPH).
CHECK FOR THE CANCELLATION OF CONVENTIONAL (FIXED SPEED) CRUISE CONTROL
MODE (NORMAL DRIVING CONDITION) IN THE FOLLOWING CASES:
Refer to ACS-9, "CHECK FOR THE CANCELLATION OF VEHICLE-TO-VEHICLE DISTANCE CONTROL
MODE (NORMAL DRIVING CONDITION) IN THE FOLLOWING CASES:"
CHECK FOR RESTORING THE SPEED THAT IS SET BY CONVENTIONAL (FIXED SPEED)
CRUISE CONTROL MODE BEFORE ICC CANCELLATION
Refer to ACS-9, "CHECK FOR RESTORING THE SPEED THAT IS SET BY VEHICLE-TO-VEHICLE DIS-
TANCE CONTROL MODE BEFORE CANCELLATION"
CHECK ON/OFF SWITCH OPERATION
1. Start the engine. Then, check that the following operations are
performed correctly.
2. CRUISE lamp (green) illuminates and ICC system indicator goes off when ON/OFF switch is pressed ON for more than 1.5
seconds. The CRUISE lamp goes off when ON/OFF switch is
turned to OFF.
3. Turn off the ignition switch while ON/OFF switch is ON. Turn the ignition switch back to ON and confirm that CRUISE lamp is
OFF.
CHECK FOR ACCEL/RES, COAST/SET, CANCEL SWITCHES
1. Check if ACCEL/RES, COAST/SET, CANCEL switches operate smoothly.
2. Check if switch buttons rebound as the buttons are released.
WKIA2038E
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![INFINITI QX56 2006 Factory Service Manual ACS-28
[ICC]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Revision: November 20092006 QX56
SELF-DIAGNOSTIC RESULTS
For details, refer to ACS-36, "Diagnostic Trouble Code (DTC) Chart" .
DATA MONITOR
Opera INFINITI QX56 2006 Factory Service Manual ACS-28
[ICC]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Revision: November 20092006 QX56
SELF-DIAGNOSTIC RESULTS
For details, refer to ACS-36, "Diagnostic Trouble Code (DTC) Chart" .
DATA MONITOR
Opera](/img/42/57028/w960_57028-40.png)
ACS-28
[ICC]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Revision: November 20092006 QX56
SELF-DIAGNOSTIC RESULTS
For details, refer to ACS-36, "Diagnostic Trouble Code (DTC) Chart" .
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR ” on "SELECT DIAG MODE" screen.
2. Touch “ECU INPUT SIGNALS ”, “MAIN SIGNALS “, or “SELEC-
TION FROM MENU ” on "SELECT MONITOR ITEM" screen.
Monitored Item
×: Applicable
BCIA0031E
WDIA0084E
Monitored Item [unit] MAIN SIGNALS ECU
INPUT
SIGNALS SELECTION
FROM MENU Description
VHCL SPEED SE
[km/h] or [mph] ××× Indicates vehicle speed calculated from
wheel speed sensor signal.
SET VHCL SPD
[km/h] or [mph] ×× Indicates set vehicle speed stored in ICC
unit.
THRTL OPENING
[%] ×××
Indicates throttle angle calculated from sig-
nal voltage of throttle position sensor.
ENGINE RPM
[rpm] ××Indicates engine speed read by ICC unit via
CAN communication (ECM transmits
engine speed via CAN communication).
DISTANCE ADJ
[SHOR/MID/LONG] ×××
Indicates set distance stored in ICC unit.
WIPER SW
[OFF/LOW/HIGH] ××Indicates wiper [OFF/LOW/HIGH] status.
MAIN SW
[ON/OFF] ××× Indicates [ON/OFF] status as judged from
control switch signal.
SET/COAST SW
[ON/OFF] ×××
Indicates [ON/OFF] status as judged from
control switch signal.
CANCEL SW
[ON/OFF] ××× Indicates [ON/OFF] status as judged from
control switch signal.
RESUME/ACC SW
[ON/OFF] ××× Indicates [ON/OFF] status as judged from
control switch signal.
CRUISE OPE
[ON/OFF] ××
Indicates whether vehicle speed is being
controlled or not (ON means “
controlling”).
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![INFINITI QX56 2006 Factory Service Manual ACS-36
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: November 20092006 QX56
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMSPFP:00000
Diagnostic Trouble Code (DTC) ChartEKS00BLZ
×:Applicable INFINITI QX56 2006 Factory Service Manual ACS-36
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: November 20092006 QX56
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMSPFP:00000
Diagnostic Trouble Code (DTC) ChartEKS00BLZ
×:Applicable](/img/42/57028/w960_57028-48.png)
ACS-36
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TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: November 20092006 QX56
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMSPFP:00000
Diagnostic Trouble Code (DTC) ChartEKS00BLZ
×:Applicable
DTC No. CONSULT-II screen terms ICC sys-
tem
warning
lamp Fail-safe
Malfunctions detected where... Refer-
ence
page
Ve h ic le -
to-vehi-cle dis-
tance
control mode Conven-
tional
(fixed
speed) cruise
control mode Brake
assist
(with pre- view
function)
11 CONTROL UNIT ××××
ICC unit internal malfunctionACS-37
12 VDC CONTROL UNIT ××××
VDC malfunction
Brake booster signal harness is
open or shortedACS-37
20 CAN COMM CIRCUIT
××××ICC unit detected CAN communi-
cation malfunctionACS-38
31 POWER SUPPLY CIR1
××××ICC unit power supply voltage is
excessively low (less than 8V)ACS-38
34 POWER SUPPLY CIR2
××××ICC unit power supply voltage is
excessively high.ACS-38
41 VHCL SPEED SE CIRC
××××
Wheel sensor malfunction
ABS actuator and electric unit
(control unit) malfunction
A/T vehicle speed sensor mal-
function
TCM malfunctionACS-39
43 VDC/TCS/ABS CIRC
××××VDC/TCS/ABS system malfunc-
tionACS-39
45 BRAKE SW/ STOP L SW
××××
ICC brake switch or stop lamp
switch harness is open or shorted
ICC brake switch or stop lamp
switch is stuck to OFF
ICC brake switch or stop lamp
switch is stuck to ONACS-40
46 OPERATION SW CIRC
×××
ICC steering switch harness or
spiral cable is open or shorted
ICC steering switch malfunctionACS-41
74 LASER BEAM OFF CNTR
×××Laser beam of ICC sensor is off
the aiming point ACS-42
90 STOP LAMP RLY FIX
×××Normally open terminal of stop
lamp relay is stuck ACS-43
92 ECM CIRCUIT
××××
ECM malfunction
Accelerator pedal position sensor
malfunction
ICC unit malfunctionACS-47
96 NP RANGE
×××
Park/neutral position switch har-
ness is open or shorted
Park/neutral position switch mal-
function
TCM malfunctionACS-48
97 AT CIRCUIT
×××TCM malfunctionACS-48