Nissan Xterra. Manual — part 383
EXL-20
< SYSTEM DESCRIPTION >
PARKING, LICENSE PLATE AND TAIL LAMPS
PARKING, LICENSE PLATE AND TAIL LAMPS
System Diagram
INFOID:0000000009484869
System Description
INFOID:0000000009484870
PARKING, LICENCE PLATE AND TAIL LAMPS OPERATION
When the combination switch (lighting and turn signal switch) is in 1ST position, BCM detects the LIGHTING
SWITCH 1ST POSITION ON. The BCM sends a parking light ON request via the CAN communication lines to
the IPDM E/R. The IPDM E/R then activates the tail lamp relay which sends power to the parking and instru-
ment illumination circuits.
EXTERIOR LAMP BATTERY SAVER CONTROL
With the combination switch (lighting and turn signal switch) in the 2ND position and the ignition switch is
turned from ON or ACC to OFF, the battery saver feature is activated.
Under this condition, the headlamps remain illuminated for 45 seconds 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 headlamps are turned off.
This setting can be changed by CONSULT. Refer to
BCS-19, "HEADLAMP : CONSULT Function (BCM -
Component Parts Location
INFOID:0000000009484871
AWLIA1723GB
1.
IPDM E/R E121, E122, E123, E124
2.
BCM M18, M20 (view with lower instru-
ment panel LH removed)
3.
Combination switch (lighting and turn
signal switch) M28
AWLIA0732ZZ
PARKING, LICENSE PLATE AND TAIL LAMPS
EXL-21
< SYSTEM DESCRIPTION >
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Component Description
INFOID:0000000009484872
Part name
Description
BCM
• Receives combination switch (lighting and turn signal switch)
requests via BCM combination switch reading function.
• Sends parking light request signal to the IPDM E/R.
IPDM E/R
Activates the tail lamp relay upon request of the BCM.
Combination switch (lighting and turn signal switch)
Outputs lighting requests to the BCM.
EXL-22
< SYSTEM DESCRIPTION >
TRAILER TOW
TRAILER TOW
System Diagram
INFOID:0000000009484873
System Description
INFOID:0000000009484874
TRAILER TAIL LAMP OPERATION
The trailer tail lamps are controlled by the trailer tow relay 1 located on the front of the IPDM E/R. With the
combination switch (lighting and turn signal switch) in the 1st position, the BCM detects the LIGHTING
SWITCH 1ST POSITION ON. The BCM sends a parking light ON request via the CAN communication lines to
the IPDM E/R. The IPDM E/R then activates the tail lamp relay which activates the trailer tow relay 1 and
sends power to the trailer connector.
TRAILER TURN SIGNAL LAMP OPERATION
The trailer turn signal lamps are controlled by the BCM. When the combination switch (lighting and turn signal
switch) is in the LH or RH position with the ignition switch ON, the combination switch (lighting and turn signal
switch) sends a signal to the BCM. The BCM detects the TURN RH or TURN LH ON request. The BCM sends
a control signal to the respective trailer turn relay which sends power to the trailer connector.
TRAILER HAZARD LAMP OPERATION
The trailer hazard lamps are controlled by the BCM. When the hazard switch is pressed, the BCM detects the
the hazard ON request. The BCM then sends a control signal to both trailer turn relays which sends power to
the trailer connector.
TRAILER BRAKE LAMP OPERATION
The trailer brake lamps operate when the brake pedal is pressed sending the stop lamp switch signal to the
trailer connector.
AWLIA2280GB
TRAILER TOW
EXL-23
< SYSTEM DESCRIPTION >
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Component Parts Location
INFOID:0000000009484875
Component Description
INFOID:0000000009484876
1.
Stop lamp switch E38 (with M/T) or
E39 (with A/T) (view with lower instru-
ment panel LH removed)
2.
Brake pedal
3.
BCM, M18, M19, M20 (view with lower
instrument panel LH removed)
4.
Trailer turn relay LH E169
5.
IPDM E/R E121, E122, E124
6.
Trailer turn relay RH E170
7.
Trailer tow relay 2 E228
8.
Trailer tow relay 1 E227
9.
Combination switch (lighting and turn
signal switch) M28
AWLIA2086ZZ
Part name
Description
BCM
• Receives lighting and turn signal requests from combination
switch (lighting and turn signal switch).
• Sends lighting signal request to the IPDM E/R to control the tail
lamp relay via CAN communication.
• Sends turn/hazard/brake control signal to the trailer turn relays.
IPDM E/R
Activates the tail lamp relay upon request from the BCM via CAN
communication.
Combination switch (lighting and turn signal switch)
Outputs lighting and turn signal requests to the BCM.
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