2006 INFINITI FX35 Ac system

CHASSIS AND BODY MAINTENANCE MA-29
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Revision: 2006 December 2006 FX35/FX45
CHASSIS AND BODY MAINTENANCEPFP:00100
Checking Exhaust SystemNLS0006L
Check exhaust pipes, muffler and mounting for improper attachment,
leaks, cracks, damage, chafing or deterioration.

If anything is found, repair or replace damaged parts.
Checking A/T FluidNLS0006M
1. Warm up engine.
2. Check for A/T fluid leakage.
3. Loosen the level gauge bolt.
4. Before driving, A/T fluid level can be checked at A/T fluid tem- peratures of 30 to 50 °C (86 to 122 °F) using “COLD” range on A/
T fluid level gauge as follows.
a. Park vehicle on level surface and set parking brake.
b. Start engine and move selector lever through each gear posi- tion. Leave selector lever in P position.
c. Check A/T fluid level with engine idling.
d. Remove A/T fluid level gauge and wipe clean with lint-free paper.
CAUTION:
When wiping away the A/T fluid level gauge, always use
lint-free paper, not a cloth one.
e. Re-insert A/T fluid level gauge into A/T fluid charging pipe as far as it will go. CAUTION:
To check A/T fluid level, insert the A/T fluid level gauge until the cap contacts the end of the A/T
fluid charging pipe, with the A/T fluid level gauge reversed from the normal attachment conditions.
f. Remove A/T fluid level gauge and note reading. If reading is at low side of range, add ATF to the charging pipe.
CAUTION:
Do not overfill.
5. Drive vehicle for approximately 5 minutes in urban areas.
6. Make the A/T fluid temperature approximately 65 °C (149 °F).
SMA211A
SCIA7120E

MA-30
CHASSIS AND BODY MAINTENANCE
Revision: 2006 December 2006 FX35/FX45
NOTE:
A/T fluid level will be greatly affected by temperature as shown in figure. Therefore, be certain to
perform operation while checking data with CONSULT-II.
a. Connect CONSULT-II to data link connector.
b. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
c. Read out the value of “ATF TEMP 1”.
7. Recheck A/T fluid level at A/T fluid temperatures of approximately 65 °C (149 °F) using “HOT” range on A/
T fluid level gauge.
CAUTION:

When wiping away the A/T fluid level gauge, always use lint-free paper, not a cloth one.

To check A/T fluid level, insert the A/T fluid level gauge
until the cap contacts the end of the A/T fluid charging
pipe, with the A/T fluid level gauge reversed from the nor-
mal attachment conditions as shown.
8. Check A/T fluid condition.

If ATF is very dark or smells burned, check operation of A/T.
Flush cooling system after repair of A/T.

If ATF contains frictional material (clutches, bands, etc.),
replace radiator and flush cooler line using cleaning solvent
and compressed air after repair of A/T. Refer to CO-14,
"RADIATOR" (for VQ35DE) or CO-41, "RADIATOR" (for
VK45DE) and AT- 1 5 , "
A/T Fluid Cooler Cleaning" .
9. Install the removed A/T fluid level gauge in the A/T fluid charging pipe.
10. Tighten level gauge bolt.
Level gauge bolt: : 5.1 N·m (0.52 kg-m, 45 in-lb)
SLIA0016E
SCIA2899E
SCIA4896E

CHASSIS AND BODY MAINTENANCE MA-35
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Revision: 2006 December 2006 FX35/FX45
Tire RotationNLS0006U

After rotation the tires, adjust the tire pressure.

Retighten the wheel nuts when the vehicle has been driven for
1,000 km (600 miles) (also in cases of a flat tire, etc.).
CAUTION:

Do not include the T-type spare tire when rotating the tires.

When installing wheels, tighten them diagonally by dividing
the work two to three times in order to prevent the wheels
from developing any distortion.
Checking Brake Fluid Level and LeaksNLS0006V

If fluid level is extremely low, check brake system for leaks.
Checking Brake Lines and CablesNLS0006W

Check brake fluid lines and parking brake cables for improper
attachment, leaks, chafing, abrasions, deterioration, etc.
Changing Brake FluidNLS0006X
1. Drain brake fluid from each bleed valve.
2. Refill until new brake fluid comes out from each bleed valve. Use same procedure as in bleeding hydraulic system to refill
brake fluid.
Refer to BR-10, "
Bleeding Brake System" .

Refill with recommended Genuine Nissan Super Heavy Duty
Brake Fluid or equivalent DOT 3 (US FMVSS No. 116).
Refer to MA-12, "
RECOMMENDED FLUIDS AND LUBRI-
CANTS" .

Never reuse drained brake fluid.

Be careful not to splash brake fluid on painted areas. Tightening torque of wheel nut
: 108 N·m (11 kg, 80 ft-lb)
SMA829C
SBR451D
SBR389C
SBR419C

PB-1
PARKING BRAKE SYSTEM
F BRAKES
CONTENTS
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SECTION PB
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PB
Revision: 2006 December 2006 FX35/FX45
PARKING BRAKE SYSTEM
PREPARATION ...................................................... ..... 2
Commercial Service Tools ................................... ..... 2
PARKING BRAKE SYSTEM ................................. ..... 3
On-Vehicle Inspection ......................................... ..... 3
PEDAL STROKE .............................................. ..... 3
INSPECT COMPONENTS ............................... ..... 3
ADJUSTMENT ................................................. ..... 3
PARKING BRAKE CONTROL .............................. ..... 4
Components ........................................................ ..... 4
Removal and Installation ..................................... ..... 4
REMOVAL ........................................................ ..... 4
INSTALLATION ................................................ ..... 5 PARKING BRAKE SHOE ......................................
..... 6
Components ........................................................ ..... 6
Removal and Installation ..................................... ..... 6
REMOVAL ........................................................ ..... 6
INSPECTION AFTER REMOVAL .................... ..... 7
INSTALLATION ................................................ ..... 8
SERVICE DATA AND SPECIFICATIONS (SDS) ... ..... 9
Parking Drum Brake ............................................ ..... 9
Parking Brake Control ......................................... ..... 9

PARKING BRAKE SYSTEM PB-3
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Revision: 2006 December 2006 FX35/FX45
PARKING BRAKE SYSTEMPFP:36010
On-Vehicle InspectionNFS000MP
PEDAL STROKE

When parking brake pedal is operated with a force of 200 N (20.4 kg, 44.9 lb), make sure the parking
brake pedal stroke is within the specified number of notches. (Check it by listening and counting the
ratchet clicks.)

Make sure that brake warning lamp comes on when parking brake pedal is depressed with in one notch.
INSPECT COMPONENTS

Make sure the components are installed properly (check for looseness, backlash, etc.).

Check parking brake pedal assembly for bend, damage and cracks, and replace if necessary.

Check cable for wear and damage, and replace if necessary.

Check parking brake warning lamp switch for malfunction, and replace if necessary.
ADJUSTMENT
1. Insert a deep socket wrench to rotate adjusting nut and loosen
cable sufficiently. Then, return pedal.
2. Remove tires from vehicle with power tool.
3. Using wheel nuts, fix disc rotor to hub and prevent it from tilting.
4. Remove adjusting hole plug installed on disc rotor. Using a flat- bladed screwdriver, turn adjuster to clockwise in the figure until
disc rotor is locked. After locking, turn adjuster to opposite direc-
tion by 5 or 6 notches.
5. Rotate disc rotor to make sure that there is no drag. Then install adjusting hole plug.
6. After adjusting the clearance of rear shoes, with no drag on rear brake, adjuster cable as follows:
a. Operate pedal 10 or more times with a force of 490 N (50 kg, 11 0 l b ) .
b. Depress pedal until a deep socket wrench can be inserted. Insert deep socket, and rotate adjusting nut to adjust pedal stroke.
CAUTION:
Do not reuse adjusting nut after removing it.
c. When parking brake pedal is operated with a force of 200 N (20.4 kg, 44.9 lb), make sure the stroke is within the specified number of notches. (Check it by listening and counting the ratchet clicks.)
d. With parking brake pedal completely returned, make sure there is no drag on rear brake. Pedal stroke : 4
− 5 notches
SFIA1139E
Pedal stroke : 4 − 5 notches
PFIA0295E

PG-1
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
K ELECTRICAL
CONTENTS
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SECTION PG
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Revision: 2006 December 2006 FX35/FX45
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
POWER SUPPLY ROUTING CIRCUIT ................. ..... 3
Schematic ........................................................... ..... 3
Wiring Diagram — POWER — ............................ ..... 4
BATTERY POWER SUPPLY — IGNITION SW.
IN ANY POSITION ........................................... ..... 4
ACCESSORY POWER SUPPLY — IGNITION
SW. IN “ACC” OR “ON” .................................... ... 10
IGNITION POWER SUPPLY — IGNITION SW.
IN “ON” AND/OR “START” ............................... ... 12
Fuse .................................................................... ... 16
Fusible Link ......................................................... ... 16
Circuit Breaker .................................................... ... 16
IPDM E/R (INTELLIGENT POWER DISTRIBUTION
MODULE ENGINE ROOM) ................................... ... 17
System Description ............................................. ... 17
SYSTEMS CONTROLLED BY IPDM E/R ........ ... 17
CAN COMMUNICATION LINE CONTROL ...... ... 17
IPDM E/R STATUS CONTROL ........................ ... 18
CAN Communication System Description ........... ... 18
CAN Communication Unit ................................... ... 18
Function of Detecting Ignition Relay Malfunction ... 18
CONSULT-II Function (IPDM E/R) ...................... ... 19
CONSULT-II INSPECTION PROCEDURE ...... ... 19
SELF-DIAG RESULTS ..................................... ... 19
DATA MONITOR .............................................. ... 19
ACTIVE TEST .................................................. ... 20
Auto Active Test .................................................. ... 21
DESCRIPTION ................................................. ... 21
OPERATION PROCEDURE ............................ ... 21
INSPECTION IN AUTO ACTIVE TEST MODE ... 22
Schematic ........................................................... ... 24
IPDM E/R Terminal Arrangement ........................ ... 25
IPDM E/R Power/Ground Circuit Inspection ....... ... 26
Inspection With CONSULT-II (Self-Diagnosis) .... ... 27
Removal and Installation of IPDM E/R ................ ... 28
REMOVAL ........................................................ ... 28
INSTALLATION ................................................ ... 28 GROUND ................................................................
... 29
Ground Distribution .............................................. ... 29
MAIN HARNESS .............................................. ... 29
ENGINE ROOM HARNESS ............................. ... 32
ENGINE HARNESS/VK ENGINE MODELS ..... ... 35
ENGINE HARNESS/VQ ENGINE MODELS .... ... 36
ENGINE CONTROL HARNESS/VK ENGINE
MODELS .......................................................... ... 37
ENGINE CONTROL HARNESS/VQ ENGINE
MODELS .......................................................... ... 38
BODY HARNESS ............................................. ... 39
BODY NO. 2 HARNESS .................................. ... 42
ROOM LAMP HARNESS ................................. ... 43
HARNESS .............................................................. ... 44
Harness Layout ................................................... ... 44
HOW TO READ HARNESS LAYOUT .............. ... 44
OUTLINE .......................................................... ... 45
MAIN HARNESS .............................................. ... 46
ENGINE ROOM HARNESS ............................. ... 49
ENGINE HARNESS/VK ENGINE MODELS ..... ... 52
ENGINE HARNESS/VQ ENGINE MODELS .... ... 53
ENGINE CONTROL HARNESS/VK ENGINE
MODELS .......................................................... ... 54
ENGINE CONTROL HARNESS/VQ ENGINE
MODELS .......................................................... ... 56
BODY HARNESS ............................................. ... 58
BODY NO. 2 HARNESS .................................. ... 60
ROOM LAMP HARNESS ................................. ... 61
FRONT DOOR HARNESS ............................... ... 62
REAR DOOR HARNESS ................................. ... 63
BACK DOOR HARNESS ................................. ... 64
Wiring Diagram Codes (Cell Codes) ................... ... 65
ELECTRICAL UNITS LOCATION ......................... ... 68
Electrical Units Location ...................................... ... 68
ENGINE COMPARTMENT ............................... ... 68
PASSENGER COMPARTMENT ...................... ... 69
LUGGAGE COMPARTMENT ........................... ... 71
HARNESS CONNECTOR ...................................... ... 72
Description ........................................................... ... 72
HARNESS CONNECTOR (TAB-LOCKING

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) PG-17
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Revision: 2006 December 2006 FX35/FX45
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PFP:284B7
System DescriptionNKS003GB

IPDM E/R (Intelligent Power Distribution Module Engine Room) integrates the relay box and fuse block
which were originally placed in engine compartment. It controls integrated relay via IPDM E/R control cir-
cuit.

IPDM E/R-integrated control circuit performs ON-OFF operation of relay, CAN communication control, oil
pressure switch signal, and hood switch signal reception, etc.

It controls operation of each electrical part via ECM, BCM and CAN communication lines.
CAUTION:
None of the IPDM E/R-integrated relays can be removed.
SYSTEMS CONTROLLED BY IPDM E/R
1. Lamp control
Using CAN communication line, it receives signal from BCM and controls the following lamps:

Headlamps (Hi, Lo)

Parking, license plate, side marker and tail lamps

Front fog lamps
2. Wiper control Using CAN communication line, it receives signals from BCM and controls the front wipers.
3. Rear window defogger relay control Using CAN communication line, it receives signals from BCM and controls the rear window defogger
relay.
4. A/C compressor control Using CAN communication line, it receives signals from ECM and controls the A/C compressor.
5. Cooling fan control Using CAN communication line, it receives signals from ECM and controls cooling fan.
6. Horn control Using CAN communication line, it receives signals from BCM and controls horn relay.
CAN COMMUNICATION LINE CONTROL
With CAN communication, by connecting each control unit using two communication lines (CAN L line, CAN H
line), it is possible to transmit maximum amount of information with minimum wiring. Each control unit can
transmit and receive data, and reads necessary information only.
Fail- Safe Control

When CAN communication with other control units is impossible, IPDM E/R performs fail-safe control.
After CAN communication recovers normally, it also returns to normal control.

Operation of control parts by IPDM E/R during fail-safe mode is as follows:
Controlled system Fail-safe mode
Headlamp

With the ignition switch ON, the headlamp (low) is ON.

With the ignition switch OFF, the headlamp (low) is OFF.
Parking, license plate side marker and
tail lamps

With the ignition switch ON, the parking, license plate, side marker and tail lamps is ON.

With the ignition switch OFF, the parking, license plate, side marker and tail lamps is OFF.
Cooling fan

With the ignition switch ON, the cooling fan HI operates.

With the ignition switch OFF, the cooling fan stops.
Front wiper Until the ignition switch is turned off, the front wiper LO and HI remains in the same status it
was in just before fail-safe control was initiated.
Rear window defogger Rear window defogger relay is OFF
A/C compressor A/C compressor is OFF
Front fog lamps Front fog lamp is OFF

PG-18
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: 2006 December 2006 FX35/FX45
IPDM E/R STATUS CONTROL
In order to save power, IPDM E/R switches status by itself based on each operating condition.
1. CAN communication status

CAN communication is normally performed with other control units.

Individual unit control by IPDM E/R is normally performed.

When sleep request signal is received from BCM, mode is switched to sleep waiting status.
2. Sleep waiting status

Process to stop CAN communication is activated.

All systems controlled by IPDM E/R are stopped. When 3 seconds have elapsed after CAN communi-
cation with other control units is stopped, mode switches to sleep status.
3. Sleep status

IPDM E/R operates in low power mode.

CAN communication is stopped.

When a change in CAN communication line is detected, mode switches to CAN communication status.

When a change hood switch or ignition switch signal is detected, mode switches to CAN communica-
tion status.
CAN Communication System DescriptionNKS003GC
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicles are equipped with many electronic control units and each control unit shares information and links
with other control units during operation (not independent). In CAN communication, control units are con-
nected 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 UnitNKS003GD
Refer to LAN-32, "CAN Communication Unit" .
Function of Detecting Ignition Relay MalfunctionNKS003GE

When contact point of integrated ignition relay is stuck and cannot be turned OFF, IPDM E/R turns ON
parking, license plate, side marker and tail lamps for 10 minutes to indicate ignition relay malfunction.

When a state of ignition relay having built-in does not agree with a state of ignition switch signal input by a
CAN communication from BCM, IPDM E/R lets tail lamp relay operate.
NOTE:
When the ignition switch is turned ON, the tail lamps are OFF. Ignition switch signal Ignition relay status Tail lamp relay
ON ON —
OFF OFF — ON OFF —
OFF ON ON (10 minutes)