air INFINITI FX35 2005 Service Manual

SQUEAK AND RATTLE TROUBLE DIAGNOSIS BL-7
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SQUEAK AND RATTLE TROUBLE DIAGNOSISPFP:00000
Work FlowAIS004LE
CUSTOMER INTERVIEW
Interview the customer if possible, to determine the conditions that exist when the noise occurs. Use the Diag-
nostic Worksheet during the interview to document the facts and conditions when the noise occurs and any
customer's comments; refer to BL-11, "
Diagnostic Worksheet" . This information is necessary to duplicate the
conditions that exist when the noise occurs.

The customer may not be able to provide a detailed description or the location of the noise. Attempt to
obtain all the facts and conditions that exist when the noise occurs (or does not occur).

If there is more than one noise in the vehicle, be sure to diagnose and repair the noise that the customer
is concerned about. This can be accomplished by test driving the vehicle with the customer.

After identifying the type of noise, isolate the noise in terms of its characteristics. The noise characteristics
are provided so the customer, service adviser and technician are all speaking the same language when
defining the noise.

Squeak —(Like tennis shoes on a clean floor)
Squeak characteristics include the light contact/fast movement/brought on by road conditions/hard sur-
faces=higher pitch noise/softer surfaces=lower pitch noises/edge to surface=chirping

Creak—(Like walking on an old wooden floor)
Creak characteristics include firm contact/slow movement/twisting with a rotational movement/pitch
dependent on materials/often brought on by activity.

Rattle—(Like shaking a baby rattle)
Rattle characteristics include the fast repeated contact/vibration or similar movement/loose parts/missing
clip or fastener/incorrect clearance.

Knock —(Like a knock on a door)
Knock characteristics include hollow sounding/sometimes repeating/often brought on by driver action.

Tick—(Like a clock second hand)
Tick characteristics include gentle contacting of light materials/loose components/can be caused by driver
action or road conditions.

Thump—(Heavy, muffled knock noise)
Thump characteristics include softer knock/dead sound often brought on by activity.

Buzz—(Like a bumble bee)
Buzz characteristics include high frequency rattle/firm contact.

Often the degree of acceptable noise level will vary depending upon the person. A noise that you may
judge as acceptable may be very irritating to the customer.

Weather conditions, especially humidity and temperature, may have a great effect on noise level.
SBT842

BL-8
SQUEAK AND RATTLE TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
DUPLICATE THE NOISE AND TEST DRIVE
If possible, drive the vehicle with the customer until the noise is duplicated. Note any additional information on
the Diagnostic Worksheet regarding the conditions or location of the noise. This information can be used to
duplicate the same conditions when you confirm the repair.
If the noise can be duplicated easily during the test drive, to help identify the source of the noise, try to dupli-
cate the noise with the vehicle stopped by doing one or all of the following:
1) Close a door.
2) Tap or push/pull around the area where the noise appears to be coming from.
3) Rev the engine.
4) Use a floor jack to recreate vehicle "twist".
5) At idle, apply engine load (electrical load, half-clutch on M/T model, drive position on A/T model).
6) Raise the vehicle on a hoist and hit a tire with a rubber hammer.

Drive the vehicle and attempt to duplicate the conditions the customer states exist when the noise occurs.

If it is difficult to duplicate the noise, drive the vehicle slowly on an undulating or rough road to stress the
vehicle body.
CHECK RELATED SERVICE BULLETINS
After verifying the customer concern or symptom, check ASIST for Technical Service Bulletins (TSBs) related
to that concern or symptom.
If a TSB relates to the symptom, follow the procedure to repair the noise.
LOCATE THE NOISE AND IDENTIFY THE ROOT CAUSE
1. Narrow down the noise to a general area. To help pinpoint the source of the noise, use a listening tool (Chassis Ear: J-39570, Engine Ear and mechanics stethoscope).
2. Narrow down the noise to a more specific area and identify the cause of the noise by:

removing the components in the area that you suspect the noise is coming from.
Do not use too much force when removing clips and fasteners, otherwise clips and fastener can be broken
or lost during the repair, resulting in the creation of new noise.

tapping or pushing/pulling the component that you suspect is causing the noise.
Do not tap or push/pull the component with excessive force, otherwise the noise will only be eliminated
temporarily.

feeling for a vibration with your hand by touching the component(s) that you suspect is (are) causing the
noise.

placing a piece of paper between components that you suspect are causing the noise.

looking for loose components and contact marks.
Refer to BL-9, "
Generic Squeak and Rattle Troubleshooting" .
REPAIR THE CAUSE

If the cause is a loose component, tighten the component securely.

If the cause is insufficient clearance between components:
–separate components by repositioning or loosening and retightening the component, if possible.
–insulate components with a suitable insulator such as urethane pads, foam blocks, felt cloth tape or ure-
thane tape. A Nissan Squeak and Rattle Kit (J-43980) is available through your authorized Nissan Parts
Department.
CAUTION:
Do not use excessive force as many components are constructed of plastic and may be damaged.
Always check with the Parts Department for the latest parts information.
The following materials are contained in the Nissan Squeak and Rattle Kit (J-43980). Each item can be
ordered separately as needed.
URETHANE PADS [1.5 mm (0.059 in) thick]
Insulates connectors, harness, etc.
76268-9E005: 100 × 135 mm (3.94 × 5.31 in)/76884-71L01: 60 × 85 mm (2.36 × 3.35 in)/76884-71L02: 15
× 25 mm(0.59 × 0.98 in)
INSULATOR (Foam blocks)
Insulates components from contact. Can be used to fill space behind a panel.
73982-9E000: 45 mm (1.77 in) thick, 50 × 50 mm (1.97 × 1.97 in)/73982-50Y00: 10 mm (0.39 in) thick,
50 × 50 mm (1.97 × 1.97 in)

SQUEAK AND RATTLE TROUBLE DIAGNOSIS BL-9
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INSULATOR (Light foam block)
80845-71L00: 30 mm (1.18 in) thick, 30 × 50 mm (1.18 × 1.97 in)
FELT CLOTHTAPE
Used to insulate where movement does not occur. Ideal for instrument panel applications.
68370-4B000: 15 × 25 mm (0.59 × 0.98 in) pad/68239-13E00: 5 mm (0.20 in) wide tape roll The following
materials, not found in the kit, can also be used to repair squeaks and rattles.
UHMW(TEFLON) TAPE
Insulates where slight movement is present. Ideal for instrument panel applications.
SILICONE GREASE
Used in place of UHMW tape that will be visible or not fit.
Note: Will only last a few months.
SILICONE SPRAY
Use when grease cannot be applied.
DUCT TAPE
Use to eliminate movement.
CONFIRM THE REPAIR
Confirm that the cause of a noise is repaired by test driving the vehicle. Operate the vehicle under the same
conditions as when the noise originally occurred. Refer to the notes on the Diagnostic Worksheet.
Generic Squeak and Rattle TroubleshootingAIS004LF
Refer to Table of Contents for specific component removal and installation information.
INSTRUMENT PANEL
Most incidents are caused by contact and movement between:
1. The cluster lid A and instrument panel
2. Acrylic lens and combination meter housing
3. Instrument panel to front pillar garnish
4. Instrument panel to windshield
5. Instrument panel mounting pins
6. Wiring harnesses behind the combination meter
7. A/C defroster duct and duct joint
These incidents can usually be located by tapping or moving the components to duplicate the noise or by
pressing on the components while driving to stop the noise. Most of these incidents can be repaired by apply-
ing felt cloth tape or silicon spray (in hard to reach areas). Urethane pads can be used to insulate wiring har-
ness.
CAUTION:
Do not use silicone spray to isolate a squeak or rattle. If you saturate the area with silicone, you will
not be able to recheck the repair.
CENTER CONSOLE
Components to pay attention to include:
1. Shifter assembly cover to finisher
2. A/C control unit and cluster lid C
3. Wiring harnesses behind audio and A/C control unit
The instrument panel repair and isolation procedures also apply to the center console.
DOORS
Pay attention to the:
1. Finisher and inner panel making a slapping noise
2. Inside handle escutcheon to door finisher
3. Wiring harnesses tapping
4. Door striker out of alignment causing a popping noise on starts and stops
Tapping or moving the components or pressing on them while driving to duplicate the conditions can isolate
many of these incidents. You can usually insulate the areas with felt cloth tape or insulator foam blocks from
the Nissan Squeak and Rattle Kit (J-43980) to repair the noise.

BL-10
SQUEAK AND RATTLE TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
TRUNK
Trunk noises are often caused by a loose jack or loose items put into the trunk by the owner.
In addition look for:
1. Trunk lid dumpers out of adjustment
2. Trunk lid striker out of adjustment
3. The trunk lid torsion bars knocking together
4. A loose license plate or bracket
Most of these incidents can be repaired by adjusting, securing or insulating the item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINING
Noises in the sunroof/headlining area can often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise
2. Sunvisor shaft shaking in the holder
3. Front or rear windshield touching headlining and squeaking
Again, pressing on the components to stop the noise while duplicating the conditions can isolate most of these
incidents. Repairs usually consist of insulating with felt cloth tape.
SEATS
When isolating seat noise it's important to note the position the seat is in and the load placed on the seat when
the noise is present. These conditions should be duplicated when verifying and isolating the cause of the
noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. The rear seatback lock and bracket
These noises can be isolated by moving or pressing on the suspected components while duplicating the con-
ditions under which the noise occurs. Most of these incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or on the engine wall. The noise is then
transmitted into the passenger room.
Causes of transmitted underhood noise include:
1. Any component mounted to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator mounting pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noises can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs can usually be made by moving, adjusting, securing, or
insulating the component causing the noise.

BL-16
HOOD
Revision: 2005 July 2005 FX
4. Remove instrument driver lower panel. Refer to IP-11, "Removal and Installation" .
5. After the bolt of the case with the air cleaner is disconnected, and it is moved, the cable is pulled.
6. Remove the grommet on the dashboard, and pull the hood lock cable toward the passenger room. CAUTION:
While pulling, be careful not to damage (peeling) the outside of the hood lock cable.
INSTALLATION
1. Pull the hood lock cable through the panel hole to the engine room.
Be careful not to bend the cable too much, keeping the radius
100 mm (3.94 in) or more.
2. Make sure the cable is not offset from the positioning grommet, and push the grommet into the panel hole securely.
3. Apply the sealant to the grommet (at * mark) properly.
4. Install the cable securely to the lock.
5. After installing, check the hood lock adjustment and hood opener operation.
Hood Lock Control InspectionAIS0051D
CAUTION:
If the hood lock cable is bent or deformed, replace it.
1. Make sure that the hood lock secondary latch is properly engaged with the secondary striker with hood's own weight.
2. Make sure that the hood lock primary latch is securely engaged with the hood striker with hood's own weight by dropping it from
approx. 200 mm (7.87 in) height.
CAUTION:
Do not drop hood from a height of 300 mm (11.81 in) or
more.
3. When pulling hood opener lever gently, make sure that front end of the hood rises by approximately 20 mm (0.79 in) and that hood striker and hood lock primary latch are disengaged. Also make sure that hood
opener returns to the original position.
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BL-18
RADIATOR CORE SUPPORT
Revision: 2005 July 2005 FX
RADIATOR CORE SUPPORTPFP:62500
Removal and InstallationAIS004LL
REMOVAL
1. Remove the front fender protector. Refer to EI-24, "Removal and Installation" .
2. Remove the front bumper. Refer to EI-14, "
Removal and Installation" .
3. Remove the ICC. Refer to ACS-73, "
REMOVAL AND INSTALLATION" .
4. Remove the headlamp. Refer to LT- 3 7 , "
Removal and Installation" .
5. Remove the washer tank. Refer to WW-36, "
Removal and Installation of Washer Tank" .
6. Remove the resonator. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" or EM-176, "AIR CLEANER
AND AIR DUCT" .
7. Remove the power steering oil cooler. Refer to PS-41, "
HYDRAULIC LINE" .
8. Remove the ambient sensor. Refer to AT C - 11 7 , "
Removal and Installation" .
9. Remove the crash zone sensor. Refer to SRS-42, "
Removal and Installation" .
10. Remove the horn connector, cooling fan connector and harness clip.
11. Remove the hood lock and disconnect hood lock control cable. Refer to BL-15, "
Removal and Installation
of Hood Lock Control" .
12. Remove the reservoir tank. Refer to CO-41, "
Removal and Installation" or CO-14, "Removal and Installa-
tion" .
13. Remove mounting blots and remove radiator core support. Remove mounting bolts with power tool.
1. Radiator core support assembly 2. Bolt 3. Bolt
4. Horn (High) 5. Air guide (RH) 6. Cooling fan
7. Air guide (LH) 8. Horn (Low)
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BL-36
POWER DOOR LOCK SYSTEM
Revision: 2005 July 2005 FX
Terminals and Reference Value for BCMAIS004LV
Terminals and Reference Value for Intelligent Key Unit (With Intelligent Key Sys-
tem)
AIS004LW
Work FlowAIS004LX
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to BL-22, "
System Description" .
3. According to the trouble diagnosis chart by symptom, repair or replace the cause of the malfunction. Refer to BL-40, "
Trouble Diagnosis Chart by Symptom" .
4. Does power door lock system operate normally? YES: GO TO 5.
NO: GO TO 3.
5. INSPECTION END
TERMI- NAL WIRE
COLOR ITEM CONDITION VOLTAGE (V)
Approx.
12 P/B Front door switch (Passenger
side) ON (door open)
→ OFF (door closed) 0 → Battery voltage
13 P/L Rear door switch RH ON (door open) → OFF (door closed) 0 → Battery voltage
22 OR Power window serial link Ignition switch ON
37 B/W Key switch ON (Key inserted)
→ OFF (Key removed
from IGN key cylinder) Battery voltage
→ 0
39 L CAN H — —
40 R CAN L — —
42 L/R Battery power supply (fuse) — Battery voltage
44 Y Driver door lock actuator
(unlock) Door lock / unlock switch
(Free → Unlock) 0
→ Battery voltage → 0
49 B Ground — 0
50 PU Door lock actuator (lock) Door lock / unlock switch
(Free → Lock) 0
→ Battery voltage → 0
51 W/B Passenger and rear doors lock
actuator (unlock) Door lock / unlock switch
(Free → Unlock) 0
→ Battery voltage → 0
52 B Ground — 0
55 G Power source (Fusible link) — Battery voltage
58 L Back door switch ON (Door open) → OFF (Door closed) 0 → 9
62 W Front door switch (Driver side) ON (Door open) → OFF (Door closed) 0 → Battery voltage
63 P Rear door switch LH ON (Door open) → OFF (Door closed) 0 → Battery voltage
PIIA2344J
TERMI-
NAL WIRE
COLOR ITEM CONDITION VOLTAGE (V)
Approx.
2 L CAN H – –
3 R CAN L – –
27 L/W Push switch Push switch (OFF → ON) 0 → Battery voltage
40 BR/W AS unlock output signal Door lock / unlock switch
(Free → Unlock) 0
→ Battery voltage

POWER DOOR LOCK SYSTEM BL-41
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Check BCM Power Supply and Ground CircuitAIS004LY
1. CHECK FUSE AND FUSIBLE LINK

Check 50A fusible link (letter M, located in teh fuse and fusible link box).

Check 15A fuse [No. 22, located in the fuse block (J/B)].
NOTE:
Refer to BL-21, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse, refer to PG-
3, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connectors.
3. Check voltage between BCM connectors M4 terminals 42, 55 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace BCM power supply circuit.
3. CHECK GROUND CIRCUIT
Check continuity between BCM connectors M4 terminals 49, 52 and
ground.
OK or NG
OK >> Power supply and ground circuit are OK.
NG >> Repair or replace BCM ground circuit. 42 (L/R) – Ground : Battery voltage
55 (G) – Ground : Battery voltage
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49 (B) – Ground : Continuity should exist.
52 (B) – Ground : Continuity should exist.
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POWER DOOR LOCK SYSTEM BL-43
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2. CHECK DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door switch and BCM connector.
3. Check continuity between door switch connector B26, B36, B46, B206 terminals 1 and BCM connector M3, B14 terminals 62, 12,
63, 13.
4. Check continuity between door switch connector B26, B36, B46, B206 terminal 1 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK DOOR SWITCH
Check continuity between door switch terminal 1 and ground part of
door switch.
OK or NG
OK >> Check door switch case ground condition.
NG >> Replace door switch. Driver side door
1 (W) – 62 (W) : Continuity should exist.
Passenger side door
1 (SB) – 12 (P/B) : Continuity should exist.
Rear door LH
1 (P) – 63 (P) : Continuity should exist.
Rear door RH
1 (P) – 13 (P/L) : Continuity should exist.
1 (W, SB, P) – Ground : Continuity should not exist.
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Terminal Door switch condition Continuity
1 Ground part of door switch Pushed No
Released Yes
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POWER DOOR LOCK SYSTEM BL-45
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2. CHECK BACK DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect back door switch connector.
3. Check voltage between back door switch connector D109 termi- nal 7 and ground. (Check harness for open.)
4. Check continuity between back door switch connector D109 ter- minal 7 and ground. (Check harness for short.)
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK BACK DOOR SWITCH
Check continuity between back door switch terminals 7 and 8.
OK or NG
OK >> GO TO 4.
NG >> Replace back door closure motor (door switch). 7 (L) – Ground : Approx. 9V
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7 (L) – Ground : Continuity should not exist.
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Terminal Back door condition Continuity
78 Closed No
Opened Yes
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