NISSAN NAVARA 2005 Repair Workshop Manual

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.

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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

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BCM (BODY CONTROL MODULE)
Schematic
EKS00PA3
LHD MODELS
MKWA3661E

BCM (BODY CONTROL MODULE)
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MKWA3662E

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BCM (BODY CONTROL MODULE)
RHD MODELS
MKWA3663E

BCM (BODY CONTROL MODULE)
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MKWA3664E

BCS-14
BCM (BODY CONTROL MODULE)
CONSULT-II Function (BCM)
EKS00PA4
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT–II INSPECTION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. With the ignition switch OFF, connect CONSULT-II and CON-
SULT-II CONVERTER to the data link connector, and then turn
ignition switch ON.
2. Touch “START (NISSAN BASED VHCL)”.
3. Touch “BCM” on “SELECT SYSTEM” screen.
BCM diagnostic test
itemDiagnostic mode Content
Inspection by partWORK SUPPORT Changes setting of each function.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTR The results of transmit/receive diagnosis of CAN communication can be read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions.
BBIA0538E
BCIA0029E
BCIA0030E