2007 INFINITI M35 door lock

SQUEAK AND RATTLE TROUBLE DIAGNOSIS
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Revision: 2007 April2007 M35/M45
SQUEAK AND RATTLE TROUBLE DIAGNOSISPFP:00000
Work FlowNIS001WG
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-13, "
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

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SQUEAK AND RATTLE TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
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 be eliminated only
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-11, "
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.
NOTE:
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
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Revision: 2007 April2007 M35/M45
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. 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 TroubleshootingNIS001WH
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.

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POWER DOOR LOCK SYSTEM
Revision: 2007 April2007 M35/M45
POWER DOOR LOCK SYSTEMPFP:24814
Component Parts and Harness Connector LocationNIS001WP
1. Fuse block (J / B) fuse layout 2. Fuse and fusible link box 3. BCM M1, M2, M3 (View with instru-
ment lower panel RH removed)
4. Front door lock actuator (Driver side)
D145. Rear door lock actuator LH D59 6. Power window main switch (door
lock and unlock switch) D10, D11
7. Fuel lid lock actuator B477
PIIB5859E

POWER DOOR LOCK SYSTEM
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System DescriptionNIS001WQ
Power is supplied at all times

through 50A fusible link (letter F , located in the fuse and fusible link box).

to BCM terminal 55,

through 10A fuse [No. 21, located in the fuse block (J/B)]

to BCM terminal 42.
When ignition switch is in ACC or ON position, power is supplied

through 10A fuse [No. 6, located in fuse block (J/B)]

to BCM terminal 11.
When ignition switch is in ON or START position, power is supplied

through 15A fuse [No. 1, located in fuse block (J/B)]

to BCM terminal 38.
Ground is supplied

to BCM terminal 52

through body grounds M16 and M70.
When the door is locked or unlocked with power window main switch (door lock and unlock switch), ground is
supplied

to CPU of power window main switch

through power window main switch (door lock and unlock switch) terminal 17

through grounds M16 and M70.
Then power window main switch (door lock and unlock switch) operation signal is sent.

to BCM terminal 22

from power window main switch (door lock and unlock switch) terminal 14
When the door is locked or unlocked with power window sub-switch (front passenger side) (door lock and
unlock switch), ground is supplied

to CPU of power window sub-switch

through power window sub-switch (front passenger side) (door lock and unlock switch) terminal 11

through grounds M16 and M70.
Then power window sub-switch (front passenger side) (door lock and unlock switch) operation signal is sent

to BCM terminal 22

from power window sub-switch (front passenger side) (door lock and unlock switch) terminal 16.
When the door is locked with front door key cylinder switch (driver side), ground is supplied

to CPU of power window main switch

through power window main switch (door lock and unlock switch) terminal 4

through front door key cylinder switch (driver side) terminals 6 and 4

through grounds M16 and M70.
Then front door key cylinder switch (driver side) operation signal (lock) is sent

to BCM terminal 22

from power window main switch (door lock and unlock switch) terminal 14
When the door is unlocked with front door key cylinder switch (driver side), ground is supplied

to CPU of power window main switch

through power window main switch (door lock and unlock switch) terminal 6

through front door key cylinder switch (driver side) terminals 5 and 4

through grounds M16 and M70.
Then front door key cylinder switch (driver side) operation signal (unlock) is sent

to BCM terminal 22

from power window main switch (door lock and unlock switch) terminal 14
BCM is connected to power window main switch and power window sub-switch as serial link.

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POWER DOOR LOCK SYSTEM
Revision: 2007 April2007 M35/M45
DOOR LOCK ACTUATOR OPERATION
When door is locked with door lock and unlock switch, all door lock actuator is locked. Ground is supplied

to BCM terminal 50

through each door lock actuator terminals 2 and 1

through BCM terminals 44 (driver side), 70 (passenger side) and 51 (rear door).
When door is unlocked with door lock and unlock switch, all door lock actuator is unlocked. Ground is supplied

to BCM terminals 44 (driver side), 70 (passenger side) and 51 (rear door)

through each door lock actuator terminals 1 and 2

through BCM terminal 50.
FUEL LID OPERATION
When door is locked with door lock and unlock switch, fuel lid lock actuator is locked. Ground is supplied

to BCM terminal 69

through fuel lid lock actuator terminals 2 and 1

through BCM terminal 44.
When door is unlocked with door lock and unlock switch, fuel lid lock actuator is unlocked. Ground is supplied

to BCM terminal 44

through fuel lid lock actuator terminals 1 and 2

through BCM terminal 69.
In this condition, fuel lid can be opened if it is pushed.
OUTLINE
Functions Available by Operating the Door Lock and Unlock Switches on Driver's Door and
Passenger's Door

Interlocked with the locking operation of door lock and unlock switch, door lock actuators of all doors and
fuel lid lock actuator are locked.

Interlocked with the unlocking operation of door lock and unlock switch, door lock actuators of all doors
and fuel lid lock actuator are unlocked.
Functions Available by Operating the Key Cylinder Switch on Driver's Door

Interlocked with the locking operation of door key cylinder, door lock actuators of all doors and fuel lid lock
actuator are locked.
Selective Unlock Operation

When door key cylinder is unlocked, door lock actuator driver side and fuel lid lock actuator are unlocked.

When door key cylinder is unlocked for the second time within 5 seconds after the first operation, door
lock actuators on all doors are unlocked.
Select unlock operation mode can be changed using “DOOR LOCK-UNLOCK SET” mode in “WORK SUP-
PORT”. Refer to BL-81, "
WORK SUPPORT" .
Key Reminder Door System
Refer to BL-49, "Key Reminder Function" .
CAN Communication System DescriptionNIS001WR
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. 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 UnitNIS001WS
Refer to LAN-50, "CAN System Specification Chart"

POWER DOOR LOCK SYSTEM
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Revision: 2007 April2007 M35/M45
SchematicNIS001WT
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POWER DOOR LOCK SYSTEM
Revision: 2007 April2007 M35/M45
Wiring Diagram —D/LOCK—NIS001WU
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