pg power INFINITI FX35 2004 Service Manual

EC-1308
[VK45DE]
ASCD BRAKE SWITCH
Revision: 2004 November 2004 FX35/FX45
11 . DETECT MALFUNCTIONING PART
Check the following.

Harness connectors E211, M41

Joint connector-2

Harness for open or short between ECM and stop lamp switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
12. CHECK STOP LAMP SWITCH
Refer to EC-1206, "
Component Inspection"
OK or NG
OK >> GO TO 13.
NG >> Replace stop lamp switch.
13. CHECK INTERMITTENT INCIDENT
Refer to EC-784, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionABS00CFG
ASCD BRAKE SWITCH
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connector.
3. Check harness continuity between ASCD brake switch terminals
1 and 2 under the following conditions.
If NG, adjust ASCD brake switch installation, refer to BR-6,
"BRAKE PEDAL" , and perform step 3 again.
STOP LAMP SWITCH
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check harness continuity between stop lamp switch terminals 1
and 2 under the following conditions.
If NG, adjust stop lamp switch installation, refer to BR-6,
"BRAKE PEDAL" , and perform step 3 again.
Condition Continuity
When brake pedal is fully released. Should exist.
When brake pedal is slightly depressed. Should not exist.
PBIB1536E
Condition Continuity
When brake pedal is fully released. Should not exist.
When brake pedal is slightly depressed. Should exist.
PBIB1535E

SNOW MODE SWITCH
EC-1315
[VK45DE]
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Revision: 2004 November 2004 FX35/FX45
4. CHECK POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF.
2. Disconnect “unified meter and A/C amp.” harness connector.
3. Turn ignition switch ON.
4. Check voltage between “unified meter and A/C amp.” terminal
12 and ground under the following conditions with CONSULT-II
or tester.
OK or NG
OK >> GO TO 8.
NG >> GO TO 5.
5. CHECK POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect snow mode switch.
3. Turn ignition switch ON.
4. Check voltage between snow mode switch terminal 1 and
ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. DETECT MALFUNCTIONING PART
Check the following.

10A fuse

Harness for open or short between snow mode switch and fuse.
>> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK SNOW MODE SWITCH OUT PUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check harness continuity between snow mode switch terminal 3 and “unified meter and A/C amp.” termi-
nal 12. Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 8.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
CONDITION VOLTAGE
Snow mode switch: ON Battery voltage
Snow mode switch: OFF 0V
PBIB2010E
Voltage: Battery voltage.
PBIB2011E
Continuity should exist.

EC-1316
[VK45DE]
SNOW MODE SWITCH
Revision: 2004 November 2004 FX35/FX45
8. CHECK SNOW MODE INDICATOR LAMP INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect snow mode switch harness connector.
3. Check harness continuity between snow mode switch terminal 5 and “unified meter and A/C amp.” termi-
nal 12. Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 9.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
9. CHECK SNOW MODE INDICATOR LAMP GROUND CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between snow mode switch terminal 6 and ground.
Refer to Wiring Diagram.
2. Also check harness for short to power.
OK or NG
OK >> GO TO 10.
NG >> Repair open circuit or short to power in harness or connectors.
10. CHECK SNOW MODE INDICATOR LAMP
Check harness continuity between snow mode switch terminals 5 and 6 under the following conditions.
OK or NG
OK >> GO TO 11.
NG >> Replace snow mode switch.
11 . CHECK SNOW MODE SWITCH
Refer to EC-1317, "
Component Inspection" .
OK or NG
OK >> GO TO 12.
NG >> Replace snow mode switch.Continuity should exist.
Continuity should exist.
Condition Continuity
1 Should exist.
2 Should not exist.
PBIB2082E

EC-1334
[VK45DE]
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
Revision: 2004 November 2004 FX35/FX45
AUTOMATIC SPEED CONTROL DEVICE (ASCD)PFP:18930
System DescriptionABS00CG0
INPUT/OUTPUT SIGNAL CHART
*: This signal is sent to the ECM through CAN communication line.
BASIC ASCD SYSTEM
Refer to Owner's Manual for ASCD operating instructions.
Automatic Speed Control Device (ASCD) allows a driver to keep vehicle at predetermined constant speed
without pressing accelerator pedal. Driver can set vehicle speed in advance between approximately 40 km/h
(25 MPH) and 144 km/h (89 MPH).
ECM controls throttle angle of electric throttle control actuator to regulate engine speed.
Operation status of ASCD is indicated by CRUISE indicator and SET indicator in combination meter. If any
malfunction occurs in ASCD system, it automatically deactivates control.
SET OPERATION
Press ON/OFF (MAIN) switch. (The CRUISE indicator in combination meter illuminates.)
When vehicle speed reaches a desired speed between approximately 40 km/h (25 MPH) and 144 km/h (89
MPH), press COAST/SET switch. (Then SET indicator in combination meter illuminates.)
ACCEL OPERATION
If the ACCEL/RESUME switch is pressed during cruise control driving, increase the vehicle speed until the
switch is released or vehicle speed reaches maximum speed controlled by the system.
And then ASCD will keep the new set speed.
CANCEL OPERATION
When any of following conditions exist, cruise operation will be canceled.

CANCEL switch is pressed

More than 2 switches at ASCD steering switch are pressed at the same time (Set speed will be cleared)

Brake pedal is depressed

Selector lever is changed to N, P, R position

Vehicle speed decreased to 13 km/h (8 MPH) lower than the set speed

VDC/TCS system is operated
When the ECM detects any of the following conditions, the ECM will cancel the cruise operation and inform
the driver by blinking indicator lamp.

Engine coolant temperature is slightly higher than the normal operating temperature, CRUISE lamp may
blink slowly.
When the engine coolant temperature decreases to the normal operating temperature, CRUISE lamp will
stop blinking and the cruise operation will be able to work by pressing COAST/SET switch or ACCEL/
RESUME switch.

Malfunction for some self-diagnoses regarding ASCD control: SET lamp will blink quickly.
If ON/OFF (MAIN) switch is turned to OFF during ASCD is activated, all of ASCD operations will be canceled
and vehicle speed memory will be erased.
COAST OPERATION
When the COAST/SET switch is pressed during cruise control driving, decrease vehicle set speed until the
switch is released. And then ASCD will keep the new set speed.
Sensor Input signal to ECM ECM function Actuator
ASCD brake switch Brake pedal operation
ASCD vehicle speed controlElectric throttle control
actuator Stop lamp switch Brake pedal operation
ASCD steering switch ASCD steering switch operation
Park/Neutral position (PNP)
switchGear position
Unified meter and A/C amp.* Vehicle speed
TCM* Powertrain revolution

EI-4
PREPARATION
Revision: 2004 November 2004 FX35/FX45
PREPARATIONPFP:00002
Special Service ToolsAIS00373
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolsAIS00374
Tool number
(Kent-Moore No.)
Tool nameDescription
(J-39570)
Chassis earLocationg the noise
(J-43980)
NISSAN Squeak and Rattle
KitRepairing the cause of noise
SIIA0993E
SIIA0994E
Tool nameDescription
Engine earLocating the noise
Power tool
SIIA0995E
PIIB1407E

EI-16
FRONT BUMPER
Revision: 2004 November 2004 FX35/FX45
REMOVAL
1. Remove front grille. Refer to EI-23, "Removal and Installation" .
2. Remove fillet molding assembly. Only the place connected with
a front bumper fascia is removed.
3. Remove bolts and clips of front undercover.
4. Remove screws and clips of right/left fender protectors on front
side. Refer to EI-25, "
Removal and Installation" .
5. Remove bolts of right/left fender.
6. Insert driver rolled with cloth between bumper fascia and “S”
type clips, and remove bumper fascia.
7. Disconnect harness connector of fog lamps.
8. Remove bumper fascia assembly.
9. Remove bumper energy absorber.
10. Remove bolts and nuts of bumper reinforcement, and remove
bumper reinforcement. Remove bolts and nuts with power tool.
11. Remove ICC sensor with bracket. Refer to Refer to ACS-67,
"REMOVAL AND INSTALLATION" .
12. Remove nuts of bumper stay, and remove bumper stay. Remove
nuts with power tool.
13. Remove nuts of front bumper guard bar, and remove front
bumper guard bar. Remove nuts with power tool.
14. Remove fog lamps located in bumper fascia. Refer to LT- 8 8 ,
"Removal and Installation" .
INSTALLATION
Install in the reverse order of removal.
7. Clip (C205) 8. Bumper fascia assembly 9. Number plate holder
10. Bolt 11. Bolt 12. Bolt
13. Nut 14. Bolt 15. Clip (“S” type)
16. Fillet molding 17. Bolt
PIIA4350E
PIIA4338E
PIIA4331E
PIIA4339E

EI-20
REAR BUMPER
Revision: 2004 November 2004 FX35/FX45
REMOVAL
1. Remove bumper side cover A.
2. Remove fillet molding assembly. Only the place connected with
a rear bumper fascia is removed.
3. Remove luggage side inspection cover.
4. Remove bumper fascia special bolts from right/left rear fender.
5. Remove bumper fascia bolts from right/left rear fender.
6. Remove lower portion of bumper fascia bolts.
7. Insert driver rolled with cloth between bumper fascia and “S”
type clips, and remove bumper fascia.
8. Remove bumper fascia assembly.
9. Remove bumper energy absorber.
10. Remove bumper reinforcement nuts and remove bumper rein-
force assembly. Remove nuts with power tool.
7. Nut 8. Bumper stay left 9. Nut
10. Energy absorber 11. Fillet molding left 12. Bumper closing left
13. Bolt 14. Bolt 15. Clip (C101)
16. Bolt 17. Clip (C205) 18. Bumper fascia assembly
19. Bumper closing right 20. Fillet molding right
PIIA4347E
PIIA4334E
PIIA4335E
PIIA4336E

REAR BUMPER
EI-21
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EI
Revision: 2004 November 2004 FX35/FX45
11. Remove bumper nuts and remove bumper stay. Remove nuts
with power tool.
INSTALLATION
Install in the reverse order of removal.
REAR BUMPER FASCIA
Removal
1. Remove rear fender cover bolt and remove rear fender.
2. Remove bracket clips and remove bracket.
3. Remove rear reflex reflector assembly screw and remove rear
reflex reflector assembly.
Installation
Install in the reverse order of removal.
PIIA4337E
PIIA4960E
PIIA6416E
PIIA6417E

LUGGAGE FLOOR TRIM
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Revision: 2004 November 2004 FX35/FX45
REMOVAL
1. Remove tonneau cover.
2. Remove luggage side hook and remove net hook (left/right).
3. Remove luggage floor board assembly. Remove bolt with power tool.
4. Remove luggage floor side board assembly (left/right).
5. Remove back door weather strip.
6. Remove rear plate assembly.
7. Remove roof rear garnish assembly.
8. Remove luggage floor cover assembly (left/right).
9. Remove rear door kicking plate (left/right).
10. Remove rear body side welt.
11. Remove rear wheel house finisher assembly (left/right).
12. Remove luggage side finisher assembly bolt and remove luggage side finisher assembly (left/right).
13. Remove rear seat belt anchor (left/right). Refer to SB-6, "
Removal and Installation of Rear Seat Belt" .
14. Remove rear pillar upper garnish assembly cap and bolt, then remove rear pillar upper garnish assembly
(left/right).
15. Remove spare tire clamp.
16. Remove sub-woofer box connector and remove sub-woofer box.
17. Remove spare tire.
18. Remove towing hook, wheel nut wrench, spanner, tire stopper, jack rod and jack complete.
19. Remove luggage side box bolt and luggage side box assembly (left/right).
INSTALLATION
Install in the reverse order of removal.
7.Luggage floor side board assembly
(left)8.Rear wheel house finisher assembly
(left)9.Luggage side finisher assembly
(left)
10. Clamp 11. Sub woofer box 12. Spare tire
13. Luggage side box (left) 14. Rear plate assembly 15. Luggage side box (right)
16. Cap 17. Luggage floor board assembly 18.Luggage floor board assembly
(option for Canada)
19.Luggage floor side board assembly
(right)20. Net hook 21.Luggage side finisher assembly
(right)
22. Luggage side hook 23.Rear wheel house finisher assembly
(right)24. Cap
25.Rear pillar upper garnish assembly
(right)26. Luggage finisher mask (right) 27. Luggage finisher mask (left)
28. Tonneau cover 29. Net

EM-1
ENGINE MECHANICAL
B ENGINE
CONTENTS
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SECTION EM
A
EM
Revision: 2004 November 2004 FX35/FX45
ENGINE MECHANICAL
VQ35DE
PRECAUTIONS .......................................................... 5
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect .......................................... 5
OPERATION PROCEDURE ................................. 5
Precautions for Drain Engine Coolant ...................... 5
Precautions for Disconnecting Fuel Piping .............. 5
Precautions for Removal and Disassembly ............. 5
Precautions for Inspection, Repair and Replace-
ment ......................................................................... 5
Precautions for Assembly and Installation ............... 5
Parts Requiring Angle Tightening ............................. 6
Precautions for Liquid Gasket .................................. 6
REMOVAL OF LIQUID GASKET SEALING .......... 6
LIQUID GASKET APPLICATION PROCEDURE ..... 6
PREPARATION ........................................................... 8
Special Service Tools ............................................... 8
Commercial Service Tools ...................................... 10
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING .............................................. 13
NVH Troubleshooting —Engine Noise ................... 13
Use the Chart Below to Help You Find the Cause
of the Symptom. ..................................................... 14
DRIVE BELTS ........................................................... 15
Checking Drive Belts .............................................. 15
Tension Adjustment ................................................ 15
ALTERNATOR AND POWER STEERING OIL
PUMP BELT ........................................................ 16
AIR CONDITIONER COMPRESSOR BELT ....... 16
Removal and Installation ........................................ 16
REMOVAL ........................................................... 16
INSTALLATION ................................................... 16
AIR CLEANER AND AIR DUCT ............................... 17
Removal and Installation ........................................ 17
REMOVAL ........................................................... 17
INSTALLATION ................................................... 17
Changing Air Cleaner Filter .................................... 18
INSPECTION ...................................................... 18
REMOVAL ........................................................... 18
INSTALLATION ................................................... 18INTAKE MANIFOLD COLLECTOR .......................... 19
Removal and Installation ........................................ 19
REMOVAL ........................................................... 19
INSPECTION AFTER REMOVAL ....................... 21
INSTALLATION ................................................... 22
INTAKE MANIFOLD ................................................. 24
Removal and Installation ........................................ 24
REMOVAL ........................................................... 24
INSPECTION AFTER REMOVAL ....................... 24
INSTALLATION ................................................... 25
EXHAUST MANIFOLD AND THREE WAY CATA-
LYST .......................................................................... 26
Removal and Installation ........................................ 26
REMOVAL ........................................................... 26
INSPECTION AFTER REMOVAL ....................... 28
INSTALLATION ................................................... 28
OIL PAN AND OIL STRAINER ................................. 30
Removal and Installation ........................................ 30
2WD MODEL ....................................................... 30
REMOVAL ........................................................... 30
INSPECTION AFTER REMOVAL ....................... 32
INSTALLATION ................................................... 32
INSPECTION AFTER INSTALLATION ................ 35
AWD MODEL ...................................................... 36
REMOVAL ........................................................... 36
INSPECTION AFTER REMOVAL ....................... 38
INSTALLATION ................................................... 39
INSPECTION AFTER INSTALLATION ................ 41
IGNITION COIL ......................................................... 42
Removal and Installation ........................................ 42
REMOVAL ........................................................... 42
INSTALLATION ................................................... 42
SPARK PLUG (PLATINUM-TIPPED TYPE) ............. 43
Removal and Installation ........................................ 43
REMOVAL ........................................................... 43
INSPECTION AFTER REMOVAL ....................... 43
INSTALLATION ................................................... 44