Nissan Frontier D40. Manual — part 635
AUTO LIGHT SYSTEM
EXL-13
< FUNCTION DIAGNOSIS >
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Component Parts Location
INFOID:0000000005274710
Component Description
INFOID:0000000005274711
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
< FUNCTION DIAGNOSIS >
FRONT FOG LAMP
FRONT FOG LAMP
System Diagram
INFOID:0000000005561491
System Description
INFOID:0000000005561492
The front fog lamps are activated with the combination switch (lighting and turn signal switch). The combina-
tion switch (lighting and turn signal switch) signal to the BCM is monitored with the BCM combination switch
reading function. When the fog lamps are turned ON with the combination switch (lighting and turn signal
switch), the BCM sends a front fog lamp request signal via CAN communication lines to the IPDM E/R. The
IPDM E/R grounds the front fog lamp relay coil to activate the front fog lamps.
FRONT FOG LAMP OPERATION
When the combination switch (lighting and turn signal switch) is in front fog lamp ON position and also in 1ST
or 2ND position or AUTO (if equipped) position (headlamp is ON), the BCM detects FR FOG ON and the
HEAD LAMP1 or 2 ON. The BCM sends a front fog lamp request ON signal via the CAN communication lines
to the IPDM E/R. The IPDM E/R then turns ON the front fog lamp relay sending power to the front fog lamps.
Component Parts Location
INFOID:0000000005274714
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1.
IPDM E/R 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
FRONT FOG LAMP
EXL-15
< FUNCTION DIAGNOSIS >
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Component Description
INFOID:0000000005274715
Part name
Description
BCM
• Receives lighting switch requests via BCM combination switch
reading function.
• Sends headlamp high/low request signal to the IPDM E/R.
IPDM E/R
Activates the front fog lamp relay upon request from the BCM.
Combination switch (lighting and turn signal switch)
Outputs lighting requests to the BCM.
EXL-16
< FUNCTION DIAGNOSIS >
TURN SIGNAL AND HAZARD WARNING LAMPS
TURN SIGNAL AND HAZARD WARNING LAMPS
System Diagram
INFOID:0000000005561493
System Description
INFOID:0000000005561494
TURN SIGNAL OPERATION
When the combination switch (lighting and turn signal switch) is in LH or RH position with the ignition switch in
ON position, the BCM detects the TURN RH or TURN LH ON request. The BCM outputs the flasher signal to
the respective turn signal lamp. The BCM also sends a turn indicator signal ON request via the CAN commu-
nication lines to the combination meter. The combination meter then activates the appropriate turn signal indi-
cator and audible buzzer.
HAZARD LAMP OPERATION
When the hazard switch is in ON position, the BCM detects the hazard switch signal ON. The BCM outputs the
flasher signal (right and left). The BCM sends a hazard indicator signal ON request via the CAN communica-
tion lines to the combination meter. The combination meter then activates the hazard indicator and audible
buzzer.
Component Parts Location
INFOID:0000000005274718
AWLIA1721GB
1.
BCM M18, M20 (view with lower in-
strument panel LH removed)
2.
Combination switch (lighting and turn
signal switch) M28
3.
Combination meter M24
4.
Hazard switch M55
AWLIA1683ZZ
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