Nissan Altima L32. Instruction — part 682
EXL-12
< FUNCTION DIAGNOSIS >
DAYTIME RUNNING LIGHT SYSTEM
Component Parts Location
INFOID:0000000004201459
1.
IPDM E/R E17, E18, E200, E201
2.
BCM M16,M17, M18, M19 (view with
instrument panel removed)
3.
Combination switch M28
AWLIA1712ZZ
DAYTIME RUNNING LIGHT SYSTEM
EXL-13
< FUNCTION DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
Component Description
INFOID:0000000004201460
After starting the engine with the parking brake released and the lighting switch in the OFF or 1ST position, the
headlamp high beam automatically turns on. With the lighting switch in the 2nd position or with autolamps ON,
the headlamps function the same as conventional light systems.
OPERATION
The BCM monitors inputs from the parking brake switch and the combination switch to determine when to acti-
vate the daytime light system. The BCM sends a daytime light request to the IPDM E/R via the CAN commu-
nication lines. The IPDM E/R grounds the daytime light relay which in turn, provides power to the ground side
of the RH high beam lamp. Power flows backward throught the RH high beam lamp to the IPDM E/R, through
the high beam fuses, through the LH high beam lamp circuit to the LH high beam lamp and on to ground. The
high beam lamps are wired in series which causes them to illuminate at a reduced intensity.
• Hi: "HIGH BEAM" position
• Lo: "LOW BEAM" position
• P: "FLASH TO PASS" position
•
×: Lamp "ON"
• –: Lamp "OFF"
• z: Lamp dims. (Added functions)
• *: When starting the engine with the parking brake released, the daytime lights will operate.
When starting the engine with the parking brake applied, the daytime lights will not operate.
4.
Combination meter M24
5.
Daytime running light relay E228
6.
Parking brake switch
E35 (coupe with CVT)
M73 (with M/T)
7.
Parking brake switch E35 (sedan with
CVT)
Engine
With engine stopped
With engine running
Lighting switch
OFF 1ST 2ND OFF 1ST 2ND
Hi
Lo
P
Hi
Lo
P
Hi
Lo
P
Hi
Lo
P
Hi
Lo
P
Hi
Lo
P
Headlamp
High beam
–
–
–
–
–
×
×
–
×
z
*
z
*
×
z
*
z
*
×
×
–
×
Low beam
–
–
–
–
–
×
×
×
×
–
–
×
–
–
×
×
×
×
Tail lamp
–
–
–
×
×
×
×
×
×
–
–
–
×
×
×
×
×
×
License and instrument illumina-
tion lamp
–
–
–
×
×
×
×
×
×
–
–
–
×
×
×
×
×
×
EXL-14
< FUNCTION DIAGNOSIS >
AUTO LIGHT SYSTEM
AUTO LIGHT SYSTEM
System Diagram
INFOID:0000000004201461
System Description
INFOID:0000000004201462
• BCM (Body Control Module) controls auto light operation according to signals from optical sensor, lighting
switch and ignition switch.
• IPDM E/R (Intelligent Power Distribution Module Engine Room) operates parking, license plate, tail, front fog
lamps and headlamps according to CAN communication signals from BCM.
• Optical sensor detects ambient brightness of 800 to 2,500 lux. And optical sensor converts light (lux) to volt-
age, then sends the optical sensor signal to BCM.
OUTLINE
The auto light control system has an optical sensor that detects outside brightness.
When the lighting switch is in AUTO position, it automatically turns ON/OFF the parking, license plate, tail,
front fog lamps and headlamps in accordance with the ambient light. Sensitivity can be adjusted in four steps.
For the details of the setting, Refer to
EXL-26, "COMMON ITEM : CONSULT-III Function"
.
AWLIA0011GB
AUTO LIGHT SYSTEM
EXL-15
< FUNCTION DIAGNOSIS >
C
D
E
F
G
H
I
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K
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A
B
EXL
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Component Parts Location
INFOID:0000000004201463
Component Description
INFOID:0000000004201464
AUTO LIGHT OPERATION
Applicable lamps
• Low beam headlamp
• Parking, license plate and tail lamps
• High beam headlamp (with the lighting switch in HIGH BEAM position)
• Front fog lamp (with the lighting switch in front fog lamp ON position)
When the lighting switch is in AUTO position with the ignition switch in ON position, BCM detects the AUTO
LIGHT (ON) by BCM combination switch reading function. BCM turns automatically ON/OFF the applicable
lamps according to ambient brightness.
NOTE:
Timing for when lamps turn ON/OFF can be changed by the function setting of CONSULT-III. Refer to
"COMMON ITEM : CONSULT-III Function"
.
1.
IPDM E/R E17, E18, E200
2.
BCM M16, M17, M18, M19, M21 (view
with instrument panel removed)
3.
Combination switch M28
4.
Optical sensor M66
ALLIA0018ZZ
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