Nissan Xterra. Manual - part 381

 

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Nissan Xterra. Manual - part 381

 

 

EXL-12

< SYSTEM DESCRIPTION >

AUTO LIGHT SYSTEM

AUTO LIGHT SYSTEM

System Diagram

INFOID:0000000009484853

System Description

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The auto light control system has an optical sensor that detects outside brightness.

When the combination switch (lighting and turn signal switch) is in AUTO position, it automatically turns ON/

OFF the parking, license plate, tail and headlamps in accordance with the ambient light. Sensitivity can be

adjusted in four steps. For the details, refer to 

BCS-19, "HEADLAMP : CONSULT Function (BCM - HEAD

LAMP)"

.

AUTO LIGHT OPERATION

The auto light system operates the low beam and high beam headlamps, parking lamps, tail lamps and license

plate lamps. The BCM monitors the combination switch (lighting and turn signal switch) position as a part of

the BCM combination switch reading function. When the combination switch (lighting and turn signal switch) is

in the AUTO position, the BCM automatically turns the lamps ON/OFF according to ambient light brightness.

When the key is turned OFF and all doors are closed, the auto light system keeps the headlamps ON for 45

seconds. 

NOTE:

Timing for when lamps turn ON/OFF can be changed by the CONSULT. Refer to 

BCS-19, "HEADLAMP :

CONSULT Function (BCM - HEAD LAMP)"

.

AWLIA1910GB

AUTO LIGHT SYSTEM

EXL-13

< SYSTEM DESCRIPTION >

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Component Parts Location

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Component Description

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1.

IPDM E/R E122, E123, E124

2.

BCM M18, M19, M20 (view with lower 
instrument panel LH removed)

3.

Front door switch
LH B8
RH B108

4.

Rear door switch
LH B18
RH B116

5.

Optical sensor M14

6.

Combination switch (lighting and turn 
signal switch) M28

AWLIA1689ZZ

Part name

Description

BCM

BCM (Body Control Module) controls auto light operation accord-
ing to signals from optical sensor, lighting switch and ignition 
switch.

IPDM E/R

IPDM E/R (Intelligent Power Distribution Module Engine Room) 
operates parking, license plate, tail and headlamps according to 
CAN communication signals from BCM.

Combination switch (lighting and turn signal switch)

The lighting switch outputs lighting requests to the BCM.

Optical sensor

Optical sensor detects ambient brightness and converts light 
(lux) to voltage, then sends the optical sensor signal to BCM.

Door switches

Detects door open/closed status and forwards that status to the 
BCM.

EXL-14

< SYSTEM DESCRIPTION >

OFF-ROAD LAMPS

OFF-ROAD LAMPS

System Diagram

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System Description

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The off-road lamps are activated with the off-road lamps switch.  The off-road lamps switch provides a request

signal to the BCM.  The BCM grounds the off-road lamps relay coil to activate the off-road lamps.  The high

beam headlamps must be ON and the off-road lamp covers removed in order for the BCM to activate the off-

road lamps relay. 

OFF ROAD LAMP OPERATION

When the off-road lamps switch is in the ON position, the lighting switch is in the 2nd position with the high

beams activated and the off-road lamp covers removed, the BCM grounds the off-road lamp relay coil to acti-

vate the off-road lamps.  The BCM monitors the off-road lamps switch, the lighting switch position via the com-

bination switch reading function and the off-road lamp covers via the off-road lamp cover sensors.  The off-

road lamp cover sensor is a magnetic sensor which monitors for the presence of the off-road lamp covers. 

Component Parts Location

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1.

Off-road lamp assembly
LH B527, B528
RH B529, B530

2.

BCM M18, M19, M20 (view with lower 
instrument panel LH removed)

3.

Off-road lamps switch M80

4.

Off-road lamps relay M81

AWLIA1699ZZ

OFF-ROAD LAMPS

EXL-15

< SYSTEM DESCRIPTION >

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Component Description

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Part name

Description

BCM

• Receives lighting switch requests via BCM combination switch 

reading function.

• Receives off-road lamps request information from the off-road 

lamps switch.

• Receives off-road lamp cover installation status from the off-

road lamp cover sensors. 

• Grounds the off-road lamps relay to activate the off-road lamps.

Off-road lamps switch

Sends off-road lamps request signal to the BCM.

Combination switch (lighting and turn signal switch)

Monitors lighting switch position.

Off-road lamp cover sensors

Senses whether the off-road lamp covers are installed.

 

 

 

 

 

 

 

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