2006 INFINITI M35 light

BCS-6
BCM (BODY CONTROL MODULE)
Revision: 2006 January2006 M35/M45
Operation Mode
Combination switch reading function has operation modes shown below.
1. Normal status
When BCM is not in sleep status, OUTPUT terminals (1-5) send out ON signal every 10 ms.
2. Sleep status
When BCM is in sleep status, transistors of OUTPUT 1 stop the output, and BCM enters low power
mode. Mean while OUTPUT 2-5 send out ON signal every 60 ms, and accept only input from lighting
switch (except turn signal switch) system.
CAN COMMUNICATION CONTROL
CAN communication allows a high rate of information transmission through the two communication lines (CAN
L line, CAN H line) connecting the various control units in the system. Each control unit transmits/receives
data but selectively reads required data only. For details of signals that are transmitted/received by BCM via
CAN communication, refer to LAN-34, "
CAN Communication Unit" .
PKIC0272E

BCM (BODY CONTROL MODULE)
BCS-7
C
D
E
F
G
H
I
J
L
MA
B
BCS
Revision: 2006 January2006 M35/M45
BCM STATUS CONTROL
BCM changes its status depending on the operation status in order to save power consumption.
1. CAN communication status
With ignition switch ON, CAN communicates with other control units normally.
Control by BCM is being operated properly.
When ignition switch is OFF, switching to sleep mode is possible.
Even when ignition switch is OFF, if CAN communication with IPDM E/R and combination meter is
active, CAN communication status is active.
2. Sleep transient status
This status shuts down CAN communication when ignition switch is turned OFF.
It transmits sleep request signal to IPDM E/R and combination meter.
Two seconds after CAN communication of all control units stops, sleep transient status switches to CAN
communication inactive status.
3. CAN communication inactive status
With ignition switch OFF, CAN communication is not active.
With ignition switch OFF, control performed only by BCM is active.
Three seconds after CAN communication of all control units stops, CAN communication inactive status
switches to sleep status.
4. Sleep status
BCM is activated with low power mode.
CAN communication is not active.
When CAN communication operation is detected, it switches to CAN communication status.
When a state of the following switches changes, it switches to CAN communication status.
–Key switch (ACC, ON)
–Key slot
–Intelligent Key (lock/unlock signal)
–Hazard switch
–Door lock/unlock switch
–Front door switch (driver side, passenger side)
–Rear door switch (LH, RH)
–Trunk lid opener switch
–Combination switch (passing, lighting switch 1ST position, front fog lamp)
–Key cylinder switch
When control performed only by BCM is required by switch, it shifts to CAN communication inactive
mode.
Status of combination switch reading function is changed to low power consumption mode.

BCS-8
BCM (BODY CONTROL MODULE)
Revision: 2006 January2006 M35/M45
SYSTEMS CONTROLLED BY BCM DIRECTLY
NOTE:
Power supply only. No system control.
SYSTEMS CONTROLLED BY BCM AND IPDM E/R
SYSTEMS CONTROLLED BY BCM AND COMBINATION METER
SYSTEMS CONTROLLED BY BCM AND INTELLIGENT KEY UNIT
SYSTEMS CONTROLLED BY BCM, COMBINATION METER AND IPDM E/R
System Reference
Power door lockBL-24, "
POWER DOOR LOCK SYSTEM"
Power window NOTEGW-13, "POWER WINDOW SYSTEM"
Sunroof NOTERF-10, "SUNROOF"
Automatic drive positioner NOTESE-11, "AUTOMATIC DRIVE POSITIONER"
Room lamp timerLT-267, "INTERIOR ROOM LAMP"
System Reference
Panic alarmBL-220, "
VEHICLE SECURITY (THEFT WARNING) SYSTEM"
Theft warningBL-220, "VEHICLE SECURITY (THEFT WARNING) SYSTEM"
IVIS (NATS)BL-248, "IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)"
HeadlampLT- 4 3 , "HEADLAMP (FOR USA) - XENON TYPE -"
LT- 8 , "HEADLAMP (FOR USA) - CONVENTIONAL TYPE -"
Auto light systemLT- 11 6 , "AUTO LIGHT SYSTEM"
Parking lamp, license plate, tail lampLT-249, "PARKING, LICENSE PLATE AND TAIL LAMPS"
Front fog lampLT-193, "FRONT FOG LAMP"
Front wiper and washer systemWW-4, "FRONT WIPER AND WASHER SYSTEM"
Rear window defoggerGW-73, "REAR WINDOW DEFOGGER"
System Reference
Turn signal and hazard warning lampsLT- 2 11 , "
TURN SIGNAL AND HAZARD WARNING LAMPS"
Warning chimeDI-60, "WARNING CHIME"
System Reference
Intelligent KeyBL-44, "
INTELLIGENT KEY SYSTEM"
System Reference
Oil pressure warning lampDI-60, "
WARNING CHIME"

BCM (BODY CONTROL MODULE)
BCS-9
C
D
E
F
G
H
I
J
L
MA
B
BCS
Revision: 2006 January2006 M35/M45
MAJOR COMPONENTS AND CONTROL SYSTEM
NOTE:
*1: Functions only when the Intelligent Key is inserted in key slot.
*2: With navigation system
*3: Without navigation systemSystem Input Output
Intelligent Key system Intelligent Key unit
All door locking actuator
Trunk lid opener actuator
Turn signal lamp (LH, RH)
Combination meter
Power door lock system
Power window main switch (door lock and unlock switch)
Power window sub switch (passenger side)
(door lock and unlock switch)All-door locking actuator
Power supply (IGN) to power win-
dow, sunroofIgnition power supply Power window and sunroof system
Power supply (BAT) to power
window, sunroof and power seatBattery power supplyPower window, sunroof system and
power seat
Panic alarm
Key slot
Intelligent KeyIPDM E/R
Theft warning system
All-door switch
Hood switch
Intelligent Key
Power window main switch (door lock and unlock switch)
IPDM E/R
Security indicator lamp
Auto light system
Optical sensor
Combination switchIPDM E/R
Battery saver control
Ignition switch
Combination switchIPDM E/R
Headlamp
Tail lamp
Front fog lampCombination switch IPDM E/R
Turn signal lamp Combination switch
Turn signal lamp
Combination meter
Hazard lamp Hazard switch
Turn signal lamp
Combination meter
Room lamp timer
Key switch
Power window main switch (door lock and unlock switch)
Front door switch driver side
All-door switchInterior room lamp
Key warning chime*
1Key switch
Front door switch driver sideCombination meter (warning buzzer)
Light warning chime
Combination switch
Front door switch driver sideCombination meter (warning buzzer)
Seat belt warning chime
Combination meter [Seat belt buckle (driver side) switch]
Ignition switchCombination meter (warning buzzer)
Vehicle-speed-sensing intermit-
tent wiper
Combination switch
Unified meter and A/C amp.IPDM E/R
Rear window defogger
Multifunction switch
NAVI control unit*2
AV control unit*3
IPDM E/R

SQUEAK AND RATTLE TROUBLE DIAGNOSIS
BL-9
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2006 January2006 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

SQUEAK AND RATTLE TROUBLE DIAGNOSIS
BL-11
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2006 January2006 M35/M45
INSULATOR (Light foam block)
80845-71L00: 30 mm (1.18 in) thick, 30
50 mm (1.181.97 in)
FELT CLOTHTAPE
Used to insulate where movement does not occur. Ideal for instrument panel applications.
68370-4B000: 15
25 mm (0.590.98 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.

BL-12
SQUEAK AND RATTLE TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
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 compartment.
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: 2006 January2006 M35/M45
1. Check the clearance and the surface height between the hood and each part by visual and tactile feeling.
(Fitting standard dimension in the table below should be satisfied.)
* Unit: mm (in)
2. In case out of specification, adjust them according to the procedures shown below.
3. Remove the hood lock and adjust the height by rotating the
bumper rubber until the hood becomes 1 to1.5 mm (0.04 to
0.059 in) lower than the fender.
4. Temporarily tighten the hood lock, and position by engaging it with the hood striker. Check the lock and
striker for looseness and adjust the clearance and evenness by the striker to satisfy the specification.
5. Adjust A and B shown in the figure to the following value with hood's own weight by dropping it from
approx. 200 mm (7.87 in) height or the hood pressed lightly (approx. 29 N (3 kg)).
6. After adjustment tighten lock bolts to the specified torque.
1. Hood hinge 2. Hood lock assembly 3. Hood assembly
4. Hood top molding 5. Bumper fascia assembly 6. Headlamp
7. Front fender
Parts Standard Parallelism (MAX)Right/left clearance
(MAX)
A – Aa Clearance 0.5 - 1.2 (0.02 -0.05) 1.0 (0.04) —
e Surface height 0.5 - 2.5 (0.02 - 0.10) 1.5 (0.06) —
B – Bb Clearance 1.5 - 5.5 (0.06 - 0.22) — 2.5 (0.01)
f Surface height -1.0 - 3.0 (-0.04 - 0.12) — 2.0 (0.08)
C – Cc Clearance 1.5 - 5.5 (0.06 - 0.22) — 2.0 (0.08)
g Surface height -1.0 - 3.0 (-0.40 - 0.12) 2.0 (0.08) 2.0 (0.08)
D – Dd Clearance 2.0 - 5.0 (0.08 - 0.20) 1.0 (0.04) 1.5 (0.06)
h Surface height -1.0 - 1.0 (-0.04 - 0.04) 1.0 (0.04) 1.5 (0.06)
PIIB3872J
1. Hood striker 2. Primary latch 3. Secondary striker
4. Secondary latch
A : 20 mm (0.79 in)
B : 6.8 mm (0.27 in)
PIIB5794E