light system NISSAN TIIDA 2007 Service Repair Manual

EXL-10
< FUNCTION DIAGNOSIS >
HEADLAMP (XENON)
HEADLAMP (XENON)
System DiagramINFOID:0000000001527648
System DescriptionINFOID:0000000001527649
A mobile valve shade type xenon headlamp is used. The xenon headlamp uses one xenon bulb each on the
LH and RH side. The xenon headlamp switches between high beam and low beam by using a high beam
solenoid to move the mobile valve shade over the xenon bulb.
Control of the headlamp system is dependent upon the position of the lighting switch (combination switch).
When the lighting switch is placed in the 2nd position, the BCM (body control module) receives input request-
ing the headlamps to illuminate. This input is then communicated to the IPDM E/R (intelligent power distribu-
tion model engine room) via the CAN communication lines. The CPU (central processing unit) of the IPDM E/
R controls the headlamp high and headlamp low relay coils. When energized, these relays direct power to the
respective headlamps, which then illuminate.
Component Parts LocationINFOID:0000000001527650
AWLIA0036GB
1. IPDM E/R E46, E47, E48 2. BCM M16, M17, M18, M19 (view with
glove box removed)3. Combination switch M28
4. Combination meter M24
WKIA5469E

HEADLAMP (XENON)
EXL-11
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Component DescriptionINFOID:0000000001527651
Part Description
BCM• Monitors the combination switch position.
 Requests the IPDM E/R (via CAN communication lines) to actuate the headlamp
high and low relays based on combination switch position .
 Requests the combination meter (via CAN communication lines) to turn the high
beam indicator lamp ON.
IPDM E/RControls the integrated headlamp high and low relays based on input from the BCM
over the CAN communication lines.
Combination switch
(Lighting & turn signal switch)Refer to BCS-9, "
System Description".
Combination meter
(High beam indicator lamp)Controls the high beam indicator lamp ON during high beam operation based on input
from the BCM over the CAN communication lines.
Headlamp assem-
blyHID control unit Controls electricity flow through the xenon bulb.
Xenon bulbUses two tungsten electrodes and is filled with xenon gas and other metal halides.
Electricity flows between the electrodes to illuminate.
High beam solenoid Actuates the mobile valve shade to control high and low beam operation.
Mobile valve shadeWhen actuated by the high beam solenoid, it shades light output from the xenon bulb
for low beam operation and opens to allow more light output during high beam opera-
tion.

EXL-12
< FUNCTION DIAGNOSIS >
AUTO LIGHT SYSTEM
AUTO LIGHT SYSTEM
System DiagramINFOID:0000000001523233
System DescriptionINFOID:0000000001523234
When the lighting switch is in AUTO position, it automatically turns ON/OFF the exterior lamps in accordance
with the ambient light levels.
The light and rain sensor detects ambient brightness and converts light (lux) to voltage which is output to the
BCM. The BCM (Body Control Module) controls auto light operation according to the signal inputs from the
light and rain sensor, lighting switch and ignition switch. If conditions are met, the BCM sends a request (via
CAN communication lines) to the IPDM E/R (Intelligent Power Distribution Module Engine Room) to activate
the exterior lamps.
Component Parts LocationINFOID:0000000001523235
AWLIA0021GB
1. IPDM E/R E46, E47, E48 2. BCM M16, M17, M18, M19, M21 (view
with glove box removed)3. Combination switch M28
4. Light and rain sensor R11
AWLIA0022GB

AUTO LIGHT SYSTEM
EXL-13
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Component DescriptionINFOID:0000000001523236
Part Description
Light and rain sensor Converts light to voltage and ouputs that voltage signal to the BCM.
BCM Monitors the combination switch position.
 Monitors the light and rain sensor signal.
 Requests the IPDM E/R (via CAN communication lines) to actuate the headlamp
high, headlamp low and tail lamp relays based on lighting switch position, ignition
switch position, light and rain sensor signals and autolight settings.
IPDM E/RControls the integrated headlamp high, headlamp low and tail lamp relays based on
input from the BCM over the CAN communication lines.
Combination switch
(Lighting & turn signal switch)Refer to BCS-9, "
System Description".

EXL-14
< FUNCTION DIAGNOSIS >
HEADLAMP AIMING SYSTEM (MANUAL)
HEADLAMP AIMING SYSTEM (MANUAL)
System DiagramINFOID:0000000001527662
System DescriptionINFOID:0000000001527663
The headlamp aiming system (manual) controls the headlamp light axis height according to input from the
headlamp aimer switch. The variable internal resistance of the headlamp aimer switch controls the signal
ground of the headlamp aiming motors located on the front combination lamp LH and RH.
Component Parts LocationINFOID:0000000001527664
Component DescriptionINFOID:0000000001527665
AWLIA0023GB
1. IPDM E/R E46, E47, E48 2. BCM M16, M17, M18, M19 (view
with glove box removed)3. Combination switch M28
4. Headlamp aimer switch M56 (LHD
models)5. Headlamp aimer switch M56 (RHD
models)6. Front combination lamp (headlamp
aiming motor)
 LH E36 (shown)
 RH E37 (similar)
AWLIA0024GB
Part Description
Headlamp aiming motor Moves the headlamp up/down based on input from the headlamp aimer switch.
Headlamp aimer switchControls variable ground to the headlamp aiming motor signal to move the headlamp aim-
ing motor up/down.

HEADLAMP AIMING SYSTEM (AUTOMATIC)
EXL-15
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HEADLAMP AIMING SYSTEM (AUTOMATIC)
System DiagramINFOID:0000000001527658
System DescriptionINFOID:0000000001527659
The headlamp aiming system (automatic) controls the headlamp light axis height appropriately according to
the vehicle height and vehicle speed as determined by the height sensor. The height sensor controls the sig-
nal ground of the headlamp aiming motors located on the front combination lamp LH and RH.
Component Parts LocationINFOID:0000000001527660
Component DescriptionINFOID:0000000001527661
AWLIA0025GB
1. IPDM E/R E46, E47, E48 2. BCM M16, M17, M18, M19 (view
with glove box removed)3. Combination switch M28
4. Combination meter M24 5. Front combination lamp (headlamp
aiming motor)
 E36 LH (shown)
 E37 RH (similar)6. Height sensor B47 (view above cen-
ter of rear axle)
AWLIA0026GB

DAYTIME LIGHT SYSTEM
EXL-17
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DAYTIME LIGHT SYSTEM
System DiagramINFOID:0000000001527654
System DescriptionINFOID:0000000001527655
The daytime light system operates the front clearance lamps, rear tail lamps and license plate lamps. The
BCM monitors the engine running status and lighting switch (combination switch) signal to determine whether
the daytime light system should be activated. With the engine running and the lighting switch OFF, the BCM
sends a signal via CAN communication to the IPDM E/R (Intelligent Power Distribution Module Engine Room)
to activate the headlamp low relay and the daytime light relay. The IPDM E/R supplies ground to the headlamp
low relay coil and daytime light relay coil which then energize to send power to the low beam headlamps, front
clearance lamps, rear tail lamps and license plate lamps.
Component Parts LocationINFOID:0000000001527656
AWLIA0027GB
1. IPDM E/R E46, E47, E48 2. BCM M16, M17, M18, M19 (view with
glove box removed)3. Combination switch M28
4. Combination meter M24 5. Daytime light relay E67
ALLIA0332ZZ

EXL-18
< FUNCTION DIAGNOSIS >
DAYTIME LIGHT SYSTEM
Component Description
INFOID:0000000001527657
Part Description
BCM Monitors lighting switch position, engine running status and parking brake status to
determine if conditions are set for daytime light system operation.
 Requests the IPDM E/R via CAN communication lines to ground the daytime light
relay coil.
IPDM E/RControls ground to the daytime light relay coil based on requests from the BCM (via
CAN communication lines).
Combination switch
(Lighting & turn signal switch)Refer to XX-XX, "*****"
.
Combination meterMonitors engine running status and forwards that information to the BCM via CAN
communication lines.

FRONT FOG LAMP
EXL-19
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FRONT FOG LAMP
System DiagramINFOID:0000000001523237
System DescriptionINFOID:0000000001523238
The BCM (Body Control Module) controls front fog lamp operation based on input from the lighting switch
(combination switch). The BCM requests (via CAN communication lines) the IPDM E/R (Intelligent Power Dis-
tribution Module Engine Room) to activate the integrated front fog lamp relay and requests the combination
meter to illuminate the front fog lamp light.
Component Parts LocationINFOID:0000000001523239
AWLIA0037GB
1. IPDM E/R E46, E47, E48 2. BCM M16, M17, M18, M19 (view with
glove box removed)3. Combination switch M28
4. Combination meter M24
WKIA5469E

EXL-20
< FUNCTION DIAGNOSIS >
FRONT FOG LAMP
Component Description
INFOID:0000000001523240
Part Description
BCM Monitors the combination switch position.
 Requests the IPDM E/R (via CAN communication lines) to actuate the front fog lamp
relay.
 Requests the combination meter (via CAN communication lines) to turn the front fog
lamp indicator lamp ON.
IPDM E/RControls the integrated front fog lamp relay based on input from the BCM via the CAN
communication lines.
Combination switch
(Lighting & turn signal switch)Refer to BCS-9, "
System Description".
Combination meter
(front fog lamp indicator lamp)Controls the front fog lamp indicator during front fog lamp operation based on input
from the BCM via the CAN communication lines.