Brake System INFINITI FX35 2008 Service Manual

EM-210
< SERVICE INFORMATION >[VK45DE]
TIMING CHAIN
If hydraulic pressure inside timing chain tensioner drops after removal/installation, slack in guide may gen-
erate a pounding noise during and just after engine start. However, this does not indicate an unusualness.
Noise will stop after hydraulic pressure rises.
INSPECTION AFTER INSTALLATION
Inspection for Leaks
The followings are procedures for checking fluids leak, lubricates leak and exhaust gases leak. Before starting engine, check oil/fluid levels incl
uding engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-9, "
Fluids and Lubricants"
 Use procedure below to check for fuel leakage.
- Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-
age at connection points.
- Start engine. With engine speed increased, che ck again for fuel leakage at connection points.
 Run engine to check for unusual noise and vibration.
 Warm up engine thoroughly to make sure there is no leak age of fuel, exhaust gases, or any oil/fluids includ-
ing engine oil and engine coolant.
 Bleed air from lines and hoses of applic able lines, such as in cooling system.
 After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.
Summary of the inspection items:
*: Transmission/transaxle/CVT fluid. power steering fluid, brake fluid, etc. Items Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Other oils and fluid* Level Leakage Level
Fuel Leakage Leakage Leakage
Exhaust gases — Leakage —
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EM-240
< SERVICE INFORMATION >[VK45DE]
ENGINE ASSEMBLY
 Avoid damage to and oil/grease smearing or
spills onto engine mounting insulator.
4. Remove alternator. Refer to SC-19, "
System Description".
5. Remove starter motor. Refer to SC-8, "
System Description".
6. Separate engine from transmission assembly. Refer to AT-243, "
Removal and Installation (AWD Models)".
7. Remove front final drive from engine. Refer to FFD-14, "
Removal and Installation (VQ35DE Models)".
8. Remove engine mounting insulators (RH and LH) and brackets (RH and LH) from engine with power tool.
9. Remove engine rear member and engine mounting insulator (rear) from transmission.
INSTALLATION
Note the following, and install in the reverse order of removal.
 Do not allow engine mounting insulator to be damage and careful no engine oil gets on it.
 For a location with a positioning pin, insert it securely into hole of mating part.
 For a part with a specified installation orientation, refer to component figure in "Removal and Installation".
 When installing engine mounting brackets (RH and LH) on cylinder
block, tighten two upper bolts (show n as “A” in the figure) first.
Then tighten two lower bolts (shown as “B” in the figure).
INSPECTION AFTER INSTALLATION
Inspection for Leaks
The followings are procedures for checking fluids leak, lubricates leak and exhaust gases leak.
 Before starting engine, check oil/fluid levels incl uding engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-9, "
Fluids and Lubricants".
 Use procedure below to check for fuel leakage.
- Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-
age at connection points.
- Start engine. With engine speed increased, che ck again for fuel leakage at connection points.
 Run engine to check for unusual noise and vibration.
 Warm up engine thoroughly to make sure there is no leak age of fuel, exhaust gases, or any oil/fluids includ-
ing engine oil and engine coolant.
 Bleed air from lines and hoses of applic able lines, such as in cooling system.
 After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the specified level, if necessary.
Summary of the inspection items:
*: Transmission/transaxle/CVT fluid. power steering fluid, brake fluid, etc.
PBIC2365E
Items Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Other oils and fluid* Level Leakage Level
Fuel Leakage Leakage Leakage
Exhaust gases — Leakage —
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FL-10
< SERVICE INFORMATION >
FUEL TANK
FUEL TANK
ComponentINFOID:0000000001327110
Removal and InstallationINFOID:0000000001327111
REMOVAL
WARNING:
Be sure to read “General Precautions” when working on the fuel system. Refer to FL-3, "
General Pre-
caution".
 Drain fuel from fuel tank if necessary. Refer to FL-4, "
Removal and Installation".
 Perform work on level place.
1. Perform steps 2 to 7 of “REMOVAL” in “ FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP
ASSEMBLY” on main and sub fuel level sensor units. Refer to FL-4, "
Removal and Installation".
2. Remove tunnel stay. Refer to RSU-5, "
On-Vehicle Inspection and Service".
3. Remove exhaust front tube, center muffler and main muffler. Refer to EX-3, "
Checking Exhaust System".
4. Remove insulator.
5. Remove propeller shaft. Refer to PR-7, "
On-Vehicle Inspection".
6. Remove parking rear brake cables. Refer to PB-4, "
Component".
7. Compress coil spring and remove coil spring.
8. Remove rear suspension assembly.
9. Remove fuel tank protector.
1. Grommet 2. Fuel filler cap 3. Clip
4. Fuel filler tube protector 5. Fuel tank mounting band 6. Fuel tank protector
7. Insulator 8. Fuel tank 9. Vent tube
10. Vent hose 11. EVAP hose 12. Vent hose
13. Fuel filler hose 14. Fuel filler tube
PBIC1580E
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TOW TRUCK TOWINGGI-41
< SERVICE INFORMATION >
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AWD MODELS
INFINITI recommends that a dolly be used as illustrated when towing AWD models.
CAUTION:
Never tow AWD models with any of the wheels on the ground as this may cause serious and expen-
sive damage to the powertrain.
Vehicle Recovery (Freeing a Stuck Vehicle)INFOID:0000000001325685
Securely install the vehicle recovery hook stored with jacking tools.
Make sure that the hook is properly secured in the stored place after
use.
WARNING:
 Stand clear of a stuck vehicle.
 Do not spin your tires at high speed. This could cause them to
explode and result in serious injury. Parts of your vehicle
could also overheat and be damaged.
CAUTION:
 Tow chains or cables must be attached only to the vehicle recovery hooks or main struct ural members of the vehicle.
Otherwise, the vehicle body will be damaged.
 Do not use the vehicle tie downs to free a vehicle stuck in
sand, snow, mud, etc. Never to w the vehicle using the vehicle
tie downs or recovery hooks.
 Always pull the cable straight out from the front of the vehicle.
Never pull on the hook at an angle.
 Pulling devices should be rout ed so they do not touch any
part of the suspension, steer ing, brake or cooling systems.
 Pulling devices such as ropes or canvas straps are not rec- ommended for use in vehicle towing or recovery.
AUTOMATIC TRANSMISSION
To tow a vehicle equipped with an automatic tr ansmission, an appropriate vehicle dolly MUST be placed under
the towed vehicle's drive wheels. Always follow the dolly manufacture's recommendations when using their
product.
If the vehicle is stuck in sand, snow , mud, etc., use the following procedure:
1. Turn off the Vehicle Dynamic Control System.
2. Make sure the area in front and behind the vehicle is clear of obstructions.
PAIA0098E
PAIA0099E
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TROUBLE DIAGNOSISLAN-43
< SERVICE INFORMATION > [CAN]
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*: The error counter stops counting when it reaches “50” and holds “50” until it is deleted.
CAN System Specification ChartINFOID:0000000001328635
Determine CAN system type from the following specific ation chart. Then choose the correct diagnosis sheet.
NOTE:
Refer to LAN-14, "
Trouble Diagnosis Procedure" for how to use CAN system specification chart.
VEHICLE EQUIPMENT IDENTIFICATION INFORMATION
NOTE:
Unit name Diagnosis item Description Indicated items on CAN DIAG SUPPORT MONITOR
Normal Error
Result indi- cated Error
counter
(Reference) Result indi-
cated Error
counter
(Reference)
Display control
unit CAN_COMM Status of CAN controller
OK0
or
1 – 50* NG
1 – 50*
CAN_CIRC_1 Signal transmission status
UNKWN
CAN_CIRC_2 Signal receiving status from the
BCM
CAN_CIRC_3 Signal receiving status from the
ECM
CAN_CIRC_4 Not used even though indicated
CAN_CIRC_5 Signal receiving status from the uni-
fied meter and A/C amp. OK0
or
1 – 50* UNKWN 1 – 50*
CAN_CIRC_6 Not used even though indicated
CAN_CIRC_7 Signal receiving status from the
IPDM E/R
OK0
or
1 – 50* UNKWN 1 – 50*
CAN_CIRC_8 Not used even though indicated
CAN_CIRC_9
Body type Wagon
Axle 2WD AWD
Engine VQ35DE VK45DE
Transmission A/T
Brake control VDC
ICC system ×××
Intelligent Key system ×× ××××
Lane departure warning system ×××
CAN system type 12345678
Diagnosis sheet LAN-60
LAN-61LAN-62LAN-63LAN-64LAN-65LAN-66LAN-67
CAN communication signal chart “TYPE 1/TYPE 2” “TYPE 3” “TYPE 4/TYPE 5/
TYPE 7” “TYPE 6/
TYPE 8” “TYPE 4/
TYPE 5/
TYPE 7” “TYPE 6/
TYPE 8”
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HEADLAMP - XENON TYPE -LT-17
< SERVICE INFORMATION >
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NOTE:
1. Vehicles without auto light system display this item, but cannot be monitored.
2. Vehicles without daytime light system display this item, but cannot be monitored.
3. This item is displayed, but cannot be monitored.
ACTIVE TEST
Display Item List
NOTE:
1. Vehicles without daytime light lamp system display this item, but cannot be tested.
2. This item is displayed, but cannot be tested.
CONSULT-III Functions (IPDM E/R)INFOID:0000000001328276
CONSULT-III can display each diagnostic item us ing the diagnostic test modes shown following.
CONSULT-III BASIC OPERATION
Refer to GI-34, "Description".
DATA MONITOR
All Signals, Main Signals, Selection From Menu
DOOR SW - DR “ON/OFF” Displays status of driver door as judged from driver door switch signal. (Door is open: ON/
Door is closed: OFF)
DOOR SW - AS “ON/OFF” Displays status of passenger door as judged from passenger door switch signal. (Door is
open: ON/Door is closed: OFF)
DOOR SW - RR “ON/OFF” Displays status of rear door as judged from rear door switch (RH) signal. (Door is open: ON/
Door is closed: OFF)
DOOR SW - RL “ON/OFF” Displays status of rear door as judged from rear door switch (LH) signal. (Door is open: ON/
Door is closed: OFF)
BACK DOOR SW “ON/OFF” Displays status of back door as judged from back door switch signal. (Door is open: ON/
Door is closed: OFF)
TURN SIGNAL R “ON/OFF” Display s status (Turn right: ON/Others: OFF) as judged from lighting switch signal.
TURN SIGNAL L “ON/OFF” Display s status (Turn left: ON/Others: OFF) as judged from lighting switch signal.
ENGINE RUN
NOTE 2“ON/OFF” Displays status (Engine running: ON/Others: OFF) as judged from engine status signal.
PKB SW
NOTE 2“ON/OFF” Displays status (Parking brake switch: ON/Others: OFF) as judged from parking brake
switch signal.
CARGO LAMP SW
NOTE 3 “OFF” —
OPTICAL SENSOR
NOTE 1 “0 - 5 V” Displays “outside brightness (close to 5 V when light/close to 0 V when dark)” judged from
optical sensor signal.
Monitor item Contents
Te s t i t e m D e s c r i p t i o n
TAIL LAMP Allows tail lamp relay to operate by switching ON-OFF.
HEAD LAMP Allows headlamp relay to operate by switching ON-OFF.
FR FOG LAMP Allows front fog lamp relay to operate by switching ON-OFF.
DTRL
NOTE 1Allows daytime light lamp operate by switching ON-OFF
CORNERING LAMP
NOTE 2—
Check Item, Diagnosis Mode Description
SELF-DIAGNOSTIC RESULTS Refer to PG-18, "
CONSULT-III Function (IPDM E/R)".
DATA MONITOR The input/output data of IPDM E/R is displayed in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TEST IPDM E/R sends a drive signal to electronic components to check their operation.
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LT-32
< SERVICE INFORMATION >
DAYTIME LIGHT SYSTEM
DAYTIME LIGHT SYSTEM
Component Parts and Harness Connector LocationINFOID:0000000001328291
System DescriptionINFOID:0000000001328292
Daytime light system turns ON daytime light lamps while driving. Daytime light lamps are not turned ON if
engine is activated with parking brake ON. Release parki ng brake to turn ON daytime light lamps. The lamps
turn OFF when the lighting switch is in the 2ND pos ition or AUTO position (headlamp is ON) and when the
lighting switch is in the PASSING position (daytime light lamps are not turned OFF only by parking brake
itself).
The parking brake signal and engine run or stop signal ar e sent to BCM (body control module) by CAN com-
munication line, and control daytime light system.
OUTLINE
Power is supplied at all times
 through 10A fuse [No. 19, located in fuse block (J/B)]
 to combination meter terminal 8,
 through 15A fuse [No. 22, located in fuse block (J/B)]
 to BCM terminal 42,
 through 50A fusible link (letter M, located in fuse, fusible link and relay box)
 to BCM terminal 55,
 through 10A fuse (No. 36, located in fuse, fusible link and relay box)
 to daytime light relay terminals 2 and 5.
When ignition switch is in ON or START position, power is supplied
PKIC9686E
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DAYTIME LIGHT SYSTEMLT-33
< SERVICE INFORMATION >
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 through 10A fuse [No. 12, located in fuse block (J/B)]
 to combination meter terminal 7,
 through 15A fuse [No. 1, located in fuse block (J/B)]
 to BCM terminal 38.
Ground is supplied
 to combination meter terminals 5, 6 and 15
 through grounds M35, M45 and M85,
 to BCM terminals 49 and 52
 through grounds M35, M45 and M85.
DAYTIME LIGHT OPERATION
Once the parking brake is turned OFF after ignition swit ch ON, if the lighting switch is turned OFF while engine
running, the BCM sends daytime light r equest signal (ON) through CAN communication.
When receiving daytime light request signal (ON), combi nation meter turns ON daytime light relay. And power
is supplied
 through daytime light relay terminal 1
 to combination meter terminal 10,
 through daytime light relay terminal 3
 to parking lamp RH and LH terminals 1.
Ground is supplied
 to combination meter terminals 5, 6 and 15
 through grounds M35, M45 and M85,
 to parking lamp RH and LH terminals 3
 through grounds E21, E50 and E51.
With power and grounds supplied, the daytime light lamps illuminate.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-4, "System Description".
AUTO LIGHT OPERATION
Refer to LT-47, "System Description".
CAN Communication System DescriptionINFOID:0000000001328293
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-
tronic control units are equipped onto a vehicle, and each 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 UnitINFOID:0000000001328294
Refer to LAN-43, "CAN System Specification Chart".
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LT-42
< SERVICE INFORMATION >
DAYTIME LIGHT SYSTEM
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
INSPECTION PARKING BRAKE SWITCH CIRCUIT
1.CHECK BRAKE INDICATOR
1. Turn ignition switch ON.
2. When a parking brake is made ON/OFF, it checks w hether brake indicator lamp of combination meter
lights up / puts out the light.
OK or NG
OK >> INSPECTION END
NG >> GO TO 2.
2.CHECK PARKING BRAKE SWITCH SIGNAL
1. Turn ignition switch OFF.
2. Disconnect parking brake switch connector.
3. Turn ignition switch ON.
4. Check voltage between parking brake switch harness connector E207 terminal 1 and ground.
OK or NG
OK >> Replace parking brake switch.
NG >> GO TO 3.
3.CHECK PARKING BRAKE SWITCH CIRCUIT
(+) (-)Ignition switch position
BCM con- nector Te r m i n a l O F F O N
M3 38 GroundApprox. 0 V Battery voltage
M4 42 Battery voltage Battery voltage
55 Battery voltage Battery voltage
PKIA7520E
BCM connector Terminal
GroundContinuity
M4 49
Ye s
52
SKIA5294E
1 – Ground : Battery voltage.
SKIA5876E
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DAYTIME LIGHT SYSTEMLT-43
< SERVICE INFORMATION >
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1. Turn ignition switch OFF.
2. Disconnect combination meter connector.
3. Check continuity between combination meter harness connector M20 terminal 23 and parking brake switch harness connector
E207 terminal 1.
OK or NG
OK >> Replace combination meter.
NG >> Repair harness or connector.
CONSULT-III Functions (BCM)INFOID:0000000001328300
CONSULT-III can display each diagnostic item using the diagnostic test mode shown following.
CONSULT-III BASIC OPERATION
Refer to GI-34, "Description".
DATA MONITOR
Display Item List
1 – 23 : Continuity should exist.
SKIA5877E
BCM diagnosis part Diagnosis mode Description
HEADLAMP DATA MONITOR Displays BCM input data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
BCM SELF-DIAG RESULTS BCM performs self-diagnosis of CAN communication.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
Monitor item Contents
IGN ON SW “ON/OFF” Displays “IGN position (ON)/OFF, ACC position (OFF)” judged from ignition switch sig-
nal.
ACC ON SW “ON/OFF” Displays “ACC (ON)/OFF, Ignition OFF (OFF)”
status judged from ignition switch sig-
nal.
HI BEAM SW “ON/OFF” Displays status (high beam switch: ON/Others: OFF) of high beam switch judged from
lighting switch signal.
HEAD LAMP SW 1 “ON/OFF” Displays status (headlamp switch 1: ON/Others: OFF) of headlamp switch 1 judged
from lighting switch signal.
HEAD LAMP SW 2 “ON/OFF” Displays status (headlamp switch 2: ON/Others: OFF) of headlamp switch 2 judged
from lighting switch signal.
LIGHT SW 1 ST “ON/OFF” Displays status (lighting switch 1ST or 2ND position: ON/Others: OFF) of lighting
switch judged from lighting switch signal.
AUTO LIGHT SW
NOTE 1 “ON/OFF” Displays status of lighting switch as judged from lighting switch signal. (AUTO position:
ON/Other than AUTO position: OFF)
PASSING SW “ON/OFF” Displays status (flash-to-pass switch: ON/Others: OFF) of flash-to-pass switch judged
from lighting switch signal.
FR FOG SW “ON/OFF” Displays status (front fog lamp switch: ON/Others: OFF) of front fog lamp switch
judged from lighting switch signal.
RR FOG SW
NOTE 3“OFF” —
DOOR SW - DR “ON/OFF” Displays status of driver door as judged from driver door switch signal. (Door is open:
ON/Door is closed: OFF)
DOOR SW - AS “ON/OFF” Displays status of passenger door as judged from passenger door switch signal. (Door
is open: ON/Door is closed: OFF)
DOOR SW - RR “ON/OFF” Displays status of rear door as judged from rear door switch (RH) signal. (Door is open:
ON/Door is closed: OFF)
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