Nissan Xterra. Manual — part 469
INL-8
< SYSTEM DESCRIPTION >
INTERIOR ROOM LAMP CONTROL SYSTEM
Component Description
INFOID:0000000009483115
Part name
Description
BCM
Provides power and ground and controls timer functions for the
interior room lamps and cargo lamp.
Key switch
Provides key in ignition status to the BCM.
Door switches
Provides door OPEN/CLOSED status to the BCM.
Back door switch
Provides back door OPEN/CLOSED status to the BCM.
Main power window and door lock/unlock switch
Provides door lock/unlock position switch status to the BCM.
Power window and door lock/unlock switch RH
Front door lock assembly LH (key cylinder switch)
Provides door lock/unlock status to the BCM.
Back door key cylinder switch
ILLUMINATION CONTROL SYSTEM
INL-9
< SYSTEM DESCRIPTION >
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ILLUMINATION CONTROL SYSTEM
System Diagram
INFOID:0000000009483116
System Description
INFOID:0000000009483117
The illumination lamps operation is dependent upon the position of the combination switch (lighting and turn
signal switch). When the combination switch (lighting and turn signal switch) is placed in the 1ST or 2ND posi-
tion the BCM (body control module) receives input requesting the parking lamps to illuminate. This input is
communicated to the IPDM E/R (intelligent power distribution module engine room) via the CAN communica-
tion lines. The CPU (central processing unit) of the IPDM E/R controls the tail lamp relay coil. When energized,
this relay directs power to the parking and illumination lamps, which then illuminate.
BATTERY SAVER CONTROL
When the combination switch (lighting and turn signal switch) is in the 1ST or 2ND position and the ignition
switch is turned from ON or ACC to OFF, the battery saver control feature is activated. Under this condition,
the illumination lamps remain illuminated for 10 minutes unless the combination switch (lighting and turn signal
switch) position is changed. If the combination switch (lighting and turn signal switch) position is changed, then
the illumination lamps are turned off after a 30 second delay. When the combination switch (lighting and turn
signal switch) is turned from OFF to 1ST or 2ND position after illumination lamps have been turned off by the
battery saver control, the illumination lamps illuminate again.
AWLIA2284GB
INL-10
< SYSTEM DESCRIPTION >
ILLUMINATION CONTROL SYSTEM
Component Parts Location
INFOID:0000000009483118
Component Description
INFOID:0000000009483119
1.
IPDM E/R E122, E124
2.
Combination switch (lighting and turn
signal switch) M28
3.
Combination meter M24
4.
Illumination control switch (built into
combination meter)
5.
BCM M18, M20 (view with lower instru-
ment panel LH removed)
WKIA5029E
Part name
Description
BCM
The BCM monitors the lighting switch position with the combina-
tion switch reading function. The BCM requests, via CAN com-
munication, that the IPDM E/R activate the tail lamp relay.
IPDM E/R
The IPDM E/R activates the tail lamp relay based on inputs re-
ceived from the BCM via the CAN communication network.
Combination meter (illumination control switch)
The illumination control switch is a part of the combination meter.
The combination meter controls illumination intensity by varying
ground to the illumination lamps based on the illumination control
switch position.
Combination switch (lighting and turn signal switch)
The combination switch (lighting and turn signal switch) provides
input to the BCM about the lighting switch position.
DIAGNOSIS SYSTEM (BCM)
INL-11
< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)
INFOID:0000000010242938
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions.
INT LAMP
Direct Diagnostic Mode
Description
ECU Identification
The BCM part number is displayed.
Self Diagnostic Result
The BCM self diagnostic results are displayed.
Data Monitor
The BCM input/output data is displayed in real time.
Active Test
The BCM activates outputs to test components.
Work support
The settings for BCM functions can be changed.
Configuration
• The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing BCM.
CAN Diag Support Mntr
The result of transmit/receive diagnosis of CAN communication is displayed.
System
Sub System
Direct Diagnostic Mode
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Door lock
DOOR LOCK
×
×
×
Rear window defogger
REAR DEFOGGER
×
×
Warning chime
BUZZER
×
×
Interior room lamp timer
INT LAMP
×
×
×
Remote keyless entry system
MULTI REMOTE ENT
×
×
×
Exterior lamp
HEAD LAMP
×
×
×
Wiper and washer
WIPER
×
×
×
Turn signal and hazard warning lamps FLASHER
×
×
Air conditioner
AIR CONDITIONER
×
Combination switch
COMB SW
×
BCM
BCM
×
×
×
×
×
Immobilizer
IMMU
×
×
×
Interior room lamp battery saver
BATTERY SAVER
×
×
×
Back door open
TRUNK
×
×
Vehicle security system
THEFT ALM
×
×
×
RAP system
RETAINED PWR
×
×
×
Signal buffer system
SIGNAL BUFFER
×
×
TPMS
AIR PRESSURE MONITOR
×
×
×
×
Panic alarm system
PANIC ALARM
×
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