2005 NISSAN NAVARA light

BCM (BODY CONTROL MODULE)
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Example Operation: (When Lighting Switch 1st Position Turned ON)
lWhen lighting switch 1st position is turned ON, contact in combination switch turns ON. At this time if
OUTPUT 4 transistor is activated, BCM detects that voltage changes in INPUT 5.
lWhen OUTPUT 4 transistor is ON, BCM detects that voltage changes in INPUT 5, and judges lighting
switch 1st position is ON. Then BCM sends tail lamp ON signal to IPDM E/R using CAN communication.
lWhen OUTPUT 4 transistor is activated again, BCM detects that voltage changes in INPUT 5 and recog-
nizes that lighting switch 1st position is continuously ON.
NOTE:
Each OUTPUT terminal transistor is activated at 10 ms intervals. Therefore, after a switch is turned ON, elec-
trical loads are activated with a time delay. But this time delay is so short that it cannot be noticed.
PKIC1725E

BCS-6
BCM (BODY CONTROL MODULE)
Operation Mode
lCombination switch reading function has operation modes as follows:
Normal status
lWhen BCM is not in sleep status, OUTPUT terminals (1-5) each turn ON-OFF every 10 ms.
Sleep status
lWhen BCM is in sleep mode, BCM enters low power mode. OUTPUTS 1-5 turn ON-OFF at 22 ms inter-
vals, and receives lighting switch input only.
CAN COMMUNICATION CONTROL
CAN communication allows a high rate of information through the two communication lines (CAN-L, CAN-H)
connecting the various control units in the system. Each control unit transmits/receives data, but selectively
reads required data only.
PKIC0489E

BCM (BODY CONTROL MODULE)
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BCM STATUS CONTROL
BCM changes its status depending on the operation status in order to save power consumption.
1. CAN communication status
lWith ignition switch ON, CAN communicates with other control units normally.
lControl by BCM is being operated properly.
lWhen ignition switch is OFF, switching to sleep mode is possible.
lEven 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
lThis status shuts down CAN communication when ignition switch is turned OFF.
lIt transmits sleep request signal to IPDM E/R and combination meter.
lTwo seconds after CAN communication of all control units stops, CAN communication switches to inac-
tive status.
3. CAN communication inactive status
lWith ignition switch OFF, CAN communication is not active.
lWith ignition switch OFF, control performed only by BCM is active.
lThree seconds after CAN communication of all control units stops, CAN communication switches to
inactive status.
4. Sleep status
lBCM is activated with low current consumption mode.
lCAN communication is not active.
lWhen CAN communication operation is detected, it switches to CAN communication status.
lWhen a state of the following switches changes, it switches to CAN communication state:
–Key switch
–Hazard switch
–Door lock/unlock switch
–Front door switch (driver side, passenger side)
–Rear door switch (LH, RH) (double cab)
–Rear door switch (driver side, passenger side) No.1 (king cab)
–Rear door switch (driver side, passenger side) No.2 (king cab)
–Combination switch (passing, lighting switch 1st position, front fog lamp)
–Keyfob (lock/unlock signal)
–Door lock assembly LH (key cylinder switch)
lWhen control performed only by BCM is required by switch, it shifts to CAN communication inactive
mode.
lStatus of combination switch reading function is changed.

BCS-8
BCM (BODY CONTROL MODULE)
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
System Reference
Power door lock
lBL-21, "POWER DOOR LOCK SYSTEM"
lBL-55, "POWER DOOR LOCK—SUPER LOCK—"
Remote keyless entryBL-89, "MULTI-REMOTE CONTROL SYSTEM"
Power windowNOTEGW-15, "POWER WINDOW SYSTEM"
Sunroof systemNOTERF-10, "SUNROOF"
Room lamp timerLT-145, "INTERIOR ROOM LAMP"
Rear fog lampLT- 8 7 , "REAR FOG LAMP"
System Reference
NATSBL-170, "
NATS(Nissan Anti-Theft System)"
HeadlampLT- 5 , "HEADLAMP -CONVENTIONAL TYPE-"
Daytime light systemLT-31, "HEADLAMP - DAYTIME LIGHT SYSTEM -"
Auto light systemLT-49, "AUTO LIGHT SYSTEM"
Parking, license plate and tail lampsLT-125, "PARKING, LICENSE PLATE AND TAIL LAMPS"
Front fog lampLT-71, "FRONT FOG LAMP"
Front wiper, washerWW-4, "FRONT WIPER AND WASHER SYSTEM"
Headlamp washerWW-39, "HEADLAMP WASHER"
Rear window defoggerGW-47, "REAR WINDOW DEFOGGER"
System Reference
Warning chimeDI-51, "
WARNING CHIME"
Turn signal and hazard warning lampsLT-97, "TURN SIGNAL AND HAZARD WARNING LAMPS"

BCM (BODY CONTROL MODULE)
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MAJOR COMPONENTS AND CONTROL SYSTEM
CAN Communication System DescriptionEKS00PA2
Refer toLAN-23, "CAN COMMUNICATION".
System Input Output
Remote keyless entry system Keyfob
lAll-door locking actuator
lTurn signal lamp (LH, RH)
lCombination meter (Turn signal
lamp)
Power door lock system Door lock/unlock switch All-door locking actuator
Power supply (IGN) to power win-
dow and sunroofIgnition power supply Power window and sunroof system
Power supply (BAT) to power
window and sunroofBattery power supply Power window and sunroof system
Headlamp Combination switch IPDM E/R
Tail lamp Combination switch IPDM E/R
Front fog lamp Combination switch IPDM E/R
Rear fog lamp Combination switch
lRear fog lamp
lCombination meter
Turn signal lamp Combination switch
lTurn signal lamp
lCombination meter
Hazard lamp Hazard switch
lTurn signal lamp
lCombination meter
Room lamp timer
lKey switch
lKeyfob
lDoor lock/unlock switch
lFront door switch driver side
lAll-door switchInterior room lamp
Light warning chime
lCombination switch
lKey switch
lFront door switch driver sideCombination meter (warning buzzer)
Rain-sensing intermittent wiper
lCombination switch
lLight and rain sensorIPDM E/R
Vehicle-speed-sensing intermit-
tent wiper
lCombination switch
lCombination meterIPDM E/R
Headlamp washer Combination switch IPDM E/R
Rear window defogger
lRear window defogger switch
lIgnition switch (ACC, ON)IPDM E/R
A/C switch signal Front air control ECM
Blower fan switch signal Front air control ECM

BL-6
SQUEAK AND RATTLE TROUBLE DIAGNOSES
SQUEAK AND RATTLE TROUBLE DIAGNOSES
PFP:00000
Work FlowEIS00DI2
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 toBL-10, "
Diagnostic Worksheet". This information is necessary to duplicate the
conditions that exist when the noise occurs.
lThe 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).
lIf 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.
lAfter 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.
lSqueak —(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
lCreak—(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.
lRattle—(Like shaking a baby rattle)
Rattle characteristics include the fast repeated contact/vibration or similar movement/loose parts/missing
clip or fastener/incorrect clearance.
lKnock —(Like a knock on a door)
Knock characteristics include hollow sounding/sometimes repeating/often brought on by driver action.
lTick—(Like a clock second hand)
Tick characteristics include gentle contacting of light materials/loose components/can be caused by driver
action or road conditions.
lThump—(Heavy, muffled knock noise)
Thump characteristics include softer knock/dead sound often brought on by activity.
lBuzz—(Like a bumble bee)
Buzz characteristics include high frequency rattle/firm contact.
lOften 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.
lWeather conditions, especially humidity and temperature, may have a great effect on noise level.
SBT842

SQUEAK AND RATTLE TROUBLE DIAGNOSES
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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 models, drive position on A/T models).
6) Raisethevehicleonahoistandhitatirewitharubberhammer.
lDrive the vehicle and attempt to duplicate the conditions the customer states exist when the noise occurs.
lIf 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
(Engine Ear or mechanics stethoscope).
2. Narrow down the noise to a more specific area and identify the cause of the noise by:
lremoving 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.
ltapping 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.
lfeeling for a vibration with your hand by touching the component(s) that you suspect is (are) causing the
noise.
lplacing a piece of paper between components that you suspect are causing the noise.
llooking for loose components and contact marks.
Refer toBL-8, "
Generic Squeak and Rattle Troubleshooting".
REPAIR THE CAUSE
lIf the cause is a loose component, tighten the component securely.
lIf 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 are 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.
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)
INSULATOR (Light foam block)
80845-71L00: 30 mm (1.18 in) thick, 30´50 mm (1.18´1.97 in)

BL-8
SQUEAK AND RATTLE TROUBLE DIAGNOSES
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 available through NISSAN Parts Department, 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 TroubleshootingEIS00DI3
Refer to Table of Contents for specific component removal and installation information.
INSTRUMENT PANEL
Most incidents are caused by contact and movement between:
1. 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 to
repair the noise.