light INFINITI FX35 2008 Service Manual

ABCDEFGHIJKLQUICK REFERENCE INDEX AGENERAL INFORMATIONGIGeneral InformationBENGINEEMEngine MechanicalLUEngine Lubrication SystemCOEngine Cooling SystemECEngine Control SystemFLFuel SystemEXExhaust SystemACCAccelerator Control SystemCTRANSMISSION/
TRANSAXLEATAutomatic TransmissionDDRIVELINE/AXLETFTransferPRPropeller ShaftFFDFront Final DriveRFDRear Final DriveFAXFront AxleRAXRear AxleESUSPENSIONFSUFront SuspensionRSURear SuspensionWTRoad Wheels & TiresFBRAKESBRBrake SystemPBParking Brake SystemBRCBrake Control SystemGSTEERINGPSPower Steering SystemHRESTRAINTSSBSeat BeltsSRSSupplemental Restraint System
(SRS)IBODYBLBody, Lock & Security SystemGWGlasses, Window System & Mir-
rorsRFRoofEIExterior & InteriorIPInstrument PanelSESeatJAIR CONDITIONERATCAutomatic Air ConditionerKELECTRICALSCStarting & Charging SystemLTLighting SystemDIDriver Information SystemWWWiper, Washer & HornBCSBody Control SystemLANLAN SystemAVAudio Visual, Navigation & Tele-
phone SystemACSAuto Cruise Control SystemPGPower Supply, Ground & Circuit Ele-
mentsLMAINTENANCEMAMaintenanceEdition: April 2007
Revision: April 2007

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-10
< SERVICE INFORMATION >[ICC]
DESCRIPTION
Switch Operation
INFOID:0000000001328809
The system is operated by MAIN switch and four control switches, all mounted on the steering wheel.
ICC System DisplayINFOID:0000000001328810
No. Switch name Description
1 RESUME/ACCELERATE switch Resumes set speed or increases speed incrementally.
2 SET/COAST switch Sets desired cruise speed, reduces speed incrementally.
3 CANCEL switch Deactivates system without erasing set speed.
4 MAIN switch Master switch to activate the system
5 DISTANCE switch Changes the following distance from: Long, Middle, Short.
SKIB8558E
SKIA6177E
No. Display items Description
1 Set vehicle speed indicator Indicates the set vehicle speed.
 For CANADA models: km/h
 For US models: MPH
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 MAIN switch indicator lamp (Green) Indicates that the MAIN switch is ON.
6 Intelligent cruise control system warning lamp
(Orange) The light comes on if there is a malfunction in the ICC system.
7 SET switch indicator lamp Indicates that the conventional cruise control mode is controlled.
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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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PRECAUTIONSAT-7
< SERVICE INFORMATION >
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PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612925
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 On Board Diagnosis (OBD) System of A/T and EngineINFOID:0000000001327123
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
 Be sure to turn the ignition sw itch OFF and disconnect the battery cable from the negative terminal
before any repair or inspection work. The open/s hort circuit of related switches, sensors, solenoid
valves, etc. Will cause the MIL to light up.
 Be sure to connect and lock the connectors secure ly after work. A loose (unlocked) connector will
cause the MIL to light up due to an open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
 Be sure to route and secure the harnesses properly after work. Interference of the harness with a
bracket, etc. May cause the MIL to li ght up due to a short circuit.
 Be sure to connect rubber tubes properly afte r work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to a malfunction of the EVAP system or fuel injection system, etc.
 Be sure to erase the unnecessary malfunction informa tion (repairs completed) from the TCM and
ECM before returning the vehicle to the customer.
PrecautionINFOID:0000000001327124
 Before connecting or disco nnecting the A/T assembly har-
ness connector, turn ignition switch OFF and disconnect the
battery cable from the negative terminal. Because battery
voltage is applied to TCM even if ignition switch is turned
OFF.
SEF289H
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AT-40
< SERVICE INFORMATION >
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Malfunction Indicator Lamp (MIL)
INFOID:0000000001327147
DESCRIPTION
The MIL is located on the instrument panel.
1. The MIL will light up when the ignition switch is turned ON with- out the engine running. This is a bulb check.
 If the MIL does not light up, refer to DI-34
, or see EC-591 (for
VQ35DE) or EC-1194
(for VK45DE).
2. When the engine is started, the MIL should go off. If the MIL remains on, the on board diagnostic system has
detected an engine system malfunction.
SEF217U
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TROUBLE DIAGNOSISAT-53
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Road TestINFOID:0000000001425855
DESCRIPTION
 The road test checks overall performance of the A/T and analyzes possible malfunction causes.
 The road test is carried out in the following three stages.
1. Check before engine is started.
2. Check at idle.
3. Cruise test
 Inspect all the items Part 1 to Part 3.
 Before beginning the road test, che ck the procedure and inspection items.
 Test all inspection items until the symptom is uncov ered. Diagnose NG items when all road tests are com-
plete.
CHECK BEFORE ENGINE IS STARTED
1.CHECK A/T CHECK INDICATOR LAMP
1. Park vehicle on level surface.
2. Move selector lever to “P” position.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON.
Does A/T CHECK indicator lamp light up for about 2 seconds?
YES - 1>> With CONSULT-III
1. Perform self-diagnostics and record all NG items on the “Diagnostic Worksheet Chart”.
2. Go to “CHECK AT IDLE”.
YES - 2>> Without CONSULT-III
1. Perform self-diagnostics and record all NG it ems on the “Diagnostic Worksheet Chart”. Refer
to AT-91, "
Diagnosis Procedure without CONSULT-III".
2. Go to “CHECK AT IDLE”.
NO >> Stop the road test and go to AT-170, "
A/T Check Indicator Lamp Does Not Come On".
CHECK AT IDLE
1.CHECK STARTING THE ENGINE
1. Park vehicle on level surface.
2. Move selector lever to “P” or “N” position.
3. Turn ignition switch OFF.
4. Start engine.
Does the engine start?
YES >> GO TO 2.
NO >> Stop the road test and go to AT-170, "
Engine Cannot Be Started in "P" or "N" Position".
Stall speedLine pressure does
not rise higher than
the line pressure for
idle.
Possible causes include a sensor malfunction or malfunction in the pressure adjustment function.
For example
 Accelerator pedal position signal malfunction
 TCM breakdown
 Line pressure solenoid malfunction (shorting, sticking in ON state)
 Pressure regulator valve or plug sticking
 Pilot valve sticking or pilot filter clogged
The pressure rises,
but does not enter
the standard posi-
tion. Possible causes include malfunctions in the pressure supply system and malfunction in the pres-
sure adjustment function.
For example
 Accelerator pedal position signal malfunction
 Line pressure solenoid malfunction (sticking, filter clog)
 Pressure regulator valve or plug sticking
 Pilot valve sticking or pilot filter clogged
Only low for a spe-
cific position Possible causes include an oil pressure leak in a passage or device related to the position after
the pressure is distributed by the manual valve.
Judgement Possible cause
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AT-56
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
When releasing accelerator pedal from D5, check lock-up from D5 to L/U. Refer to AT-58, "Vehicle Speed at
Which Lock-up Occurs/Releases".
With CONSULT-III
Select “TCC SOLENOID” with the “DATA MONI TOR” mode for “TRANSMISSION”. Refer to AT-84, "
CON-
SULT-III Function (TRANSMISSION)".
Does it lock-up?
YES >> GO TO 7.
NO >> Enter a check mark at AT-190, "
A/T Does Not Lock-up" on the “Diagnostic Worksheet Chart”, then
continue the road test.
7.CHECK LOCK-UP HOLD
Check hold lock-up. With CONSULT-III
Select “TCC SOLENOID” with the “DATA MONI TOR” mode for “TRANSMISSION”. Refer to AT-84, "
CON-
SULT-III Function (TRANSMISSION)".
Does it maintain lock-up status?
YES >> GO TO 8.
NO >> Enter a check mark at AT-192, "
A/T Does Not Hold Lock-up Condition" on the “Diagnostic Work-
sheet Chart”, then continue the road test.
8.CHECK LOCK-UP RELEASE
Check lock-up cancellation by depressing brake pedal lightly to decelerate. With CONSULT-III
Select “TCC SOLENOID” with the “DATA MONI TOR” mode for “TRANSMISSION”. Refer to AT-84, "
CON-
SULT-III Function (TRANSMISSION)".
Does lock-up cancel?
YES >> GO TO 9.
NO >> Enter a check mark at AT-194, "
Lock-up Is Not Released" on the “Diagnostic Worksheet Chart”,
then continue the road test.
9.CHECK SHIFT-DOWN D5 → D4
Decelerate by pressing lightly on the brake pedal.
With CONSULT-III
Read the gear position and engine speed. Refer to AT-84, "
CONSULT-III Function (TRANSMISSION)".
When the A/T shift-down D
5 → D4, does the engine speed drop smoothly back to idle?
YES >> 1. Stop the vehicle. 2. Go to AT-53, "
Road Test".
NO >> Enter a check mark at AT-194, "
Engine Speed Does Not Return to Idle" on the “Diagnostic Work-
sheet Chart”, then continue the road test. Go to AT-53, "
Road Test".
CRUISE TEST - PART 2
1.CHECK STARTING FROM D1
1. Move selector lever into “D” position.
2. Accelerate at half throttle.
With CONSULT-III
Read the gear position. Refer to AT-84, "
CONSULT-III Function (TRANSMISSION)".
Does it start from D
1?
YES >> GO TO 2.
NO >> Enter a check mark at AT-180, "
Vehicle Cannot Be Started from D1" on the “Diagnostic Worksheet
Chart”, then continue the road test.
2.CHECK SHIFT-UP D1 → D2
Press the accelerator pedal down all the way and check whether or not the A/T shifts up (D1 → D2) at the cor-
rect speed. Refer to AT-58, "
Vehicle Speed at Which Gear Shifting Occurs".
With CONSULT-III
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AT-84
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
Data are reference value and are measured between each terminal and ground.
CONSULT-III Function (TRANSMISSION)INFOID:0000000001327163
CONSULT-III can display each diagnostic item us ing the diagnostic test models shown following.
FUNCTION
CONSULT-III REFERENCE VALUE
NOTICE:
1. The CONSULT-III electrically displays shift timi ng and lock-up timing (that is, operation timing of each
solenoid).
Check for time difference between actual shift timi ng and the CONSULT-III display. If the difference is
noticeable, mechanical parts (except solenoids, sens ors, etc.) may be malfunctioning. Check mechanical
parts using applicable diagnostic procedures.
2. Shift schedule (which implies gear position) display ed on CONSULT-III and that indicated in Service Man-
ual may differ slightly. This occurs because of the following reasons:
- Actual shift schedule has more or less tolerance or allowance,
- Shift schedule indicated in Service Manual refers to the point where shifts start, and
- Gear position displayed on CONSULT-III indicates the point where shifts are completed.
Te r m i n a l Wire
color Item Condition Data (Approx.)
1LG Power supply
(Memory back-up) Always Battery voltage
2LG Power supply
(Memory back-up)
Always Battery voltage
3 L CAN-H – –
4PU K-line (CONSULT-
III signal) The terminal is connected to the data link connector for CONSULT-III. –
5 B Ground – –
6YPower supply – Battery voltage
–0 V
7OR Back-up lamp re-
lay Selector lever in “R” position. 0 V
Selector lever in other positions. Battery voltage
8 P CAN-L – –
9 GY Starter relay Selector lever in “N” and “P
” positions. Battery voltage
Selector lever in other positions. 0 V
10 B Ground – –
Diagnostic test mode Function
Work support This mode enables a technician to adjust some devices faster and more accurately by following the in-
dications on CONSULT-III.
Self-diagnostic results Self-diagnostic results can be read and erased quickly.
Data monitor Input/Output data in the ECU can be read.
CAN diagnostic support mon-
itor The results of transmit/receive diagnosis of CAN communication can be read.
Function test Performed by CONSULT-III instead of a technician to determine whether each system is “OK” or “NG”.
DTC work support Select the operating condition to confirm Diagnosis Trouble Codes.
ECU part number TCM part number can be read.
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TROUBLE DIAGNOSISAT-91
< SERVICE INFORMATION >
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DTC WORK SUPPORT MODE
Display Items List
Diagnosis Procedure without CONSULT-IIIINFOID:0000000001327164
OBD-II SELF-DIAGNOSTIC PROCEDURE (WITH GST)
Refer to EC-125, "Generic Scan Tool (GST) Function" (for VQ35DE) or EC-704, "Generic Scan Tool (GST)
Function" (for VK45DE).
OBD-II SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)
Refer to EC-71, "Malfunction Indicator Lamp (MIL)" (for VQ35DE) or EC-649, "Malfunction Indicator Lamp
(MIL)" (for VK45DE).
TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)
Description
When the ignition switch is turned ON, the indicator la mp lights up for 2 seconds. As a method for locating the
suspect circuit, when the self-diagnostics start signal is input, the memory for the malfunction location is output
and the A/T CHECK indicator lamp flashes to display the corresponding DTC.
Diagnostic Procedure
Voltage (V) — — Displays the value measured by the voltage
probe.
Frequency (Hz) — —
The value measured by the pulse probe is dis-
played.
DUTY-HI (high) (%) — —
DUTY-LOW (low) (%) — —
PLS WIDTH-HI (ms) — —
PLS WIDTH-LOW (ms) — — Monitored item (Unit)
Select Monitor Item
Remarks
ECU IN-
PUT SIG- NALS MAIN SIG-
NALS SELEC-
TION
FROM
MENU
DTC work support item Description Check item
1ST GR FUNCTN P0731 Following items for “1st gear function” can be confirmed.
 Self-diagnosis status (whether the diagnosis is being performed
or not)
 Self-diagnostic results (OK or NG)
 Input clutch solenoid valve
 Front brake solenoid valve
 Direct clutch solenoid valve
 High and low reverse clutch solenoid valve
 Each clutch
 Hydraulic control circuit
2ND GR FUNCTN P0732
Following items for “2nd gear function” can be confirmed.
 Self-diagnosis status (whether the diagnosis is being performed
or not)
 Self-diagnostic results (OK or NG)
3RD GR FUNCTN P0733 Following items for “3rd gear function” can be confirmed.
 Self-diagnosis status (whether the diagnosis is being performed
or not)
 Self-diagnostic results (OK or NG)
4TH GR FUNCTN P0734 Following items for “4th gear function” can be confirmed.
 Self-diagnosis status (whether the diagnosis is being performed
or not)
 Self-diagnostic results (OK or NG)
5TH GR FUNCTN P0735 Following items for “5th gear function” can be confirmed.
 Self-diagnosis status (whether the diagnosis is being performed
or not)
 Self-diagnostic results (OK or NG)
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