Infiniti G37 Coupe. Manual — part 794
INL-10
< FUNCTION DIAGNOSIS >
INTERIOR ROOM LAMP BATTERY SAVER SYSTEM
Component Parts Location
INFOID:0000000001604816
Component Description
INFOID:0000000001604817
1.
Key cylinder switch
2.
Request switch
3.
Step lamp
4.
Door switch
5.
Door lock and unlock switch
6.
Push-button ignition switch
7.
Map lamp
8.
Vanity mirror lamp
9.
Remote keyless entry receiver
10. BCM
11.
Trunk room lamp switch
12.
Trunk room lamp
A.
Behind glove box
B.
Dash side lower (Passenger side)
C.
Trunk lid lock assembly
D.
Trunk room upward
JPLIA0590ZZ
Part
Description
BCM
Operates the interior room lamp battery saver depending on the vehicle condition to
cut the interior room lamp power supply.
Remote keyless entry receiver
Transmits the lock/unlock signal to BCM.
INTERIOR ROOM LAMP BATTERY SAVER SYSTEM
INL-11
< FUNCTION DIAGNOSIS >
C
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• Door lock and unlock switch
• Key cylinder switch
Transmits a switch signal by power window switch serial link.
• Request switch
• Door switch
Inputs a switch signal to BCM.
Part
Description
INL-12
< FUNCTION DIAGNOSIS >
ILLUMINATION CONTROL SYSTEM
ILLUMINATION CONTROL SYSTEM
System Diagram
INFOID:0000000001604818
System Description
INFOID:0000000001604819
OUTLINE
Each illumination lamp is controlled by each function of BCM, IPDM E/R and combination meter.
Control by BCM
• Combination switch reading function
• Headlamp control function
Control by IPDM E/R
• Relay control function
Control by combination meter
• Meter illumination control function (Refer to
MWI-25, "METER ILLUMINATION CONTROL : System Dia-
.)
ILLUMINATION CONTROL
• BCM detects the combination switch condition by the combination switch reading function.
• BCM transmits position light request signal to IPDM E/R and combination meter (through the unified meter
and A/C amp.) according to tail lamp ON condition.
Tail lamp ON condition
- Lighting switch 1ST
- Lighting switch 2ND
- Lighting switch AUTO, and the auto light function ON judgment (With auto light system)
• IPDM E/R turns the integrated tail lamp relay ON according to position light request signal. It provides the
power supply to each illumination lamp.
• Combination meter enters in the nighttime mode according to position light request signal. Under the night-
time mode the combination meter controls the illuminance by controlling the each illumination lamp (ground
side).
JPLIA0092GB
ILLUMINATION CONTROL SYSTEM
INL-13
< FUNCTION DIAGNOSIS >
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Component Parts Location
INFOID:0000000001604820
Component Description
INFOID:0000000001604821
1.
Combination switch
2.
Illumination control switch
3.
Combination meter
4.
BCM
5.
IPDM E/R
6.
Unified meter and A/C amp.
A
Dash side lower (Passenger side)
B.
Engine room dash panel (RH)
C.
Behind cluster lid C
JPLIA0591ZZ
Part
Description
BCM
• Judges each switch condition by the combination switch reading function.
• Judges the illumination lamp ON/OFF status depending on the vehicle condition.
And then it transmits position light request signal to IPDM E/R and combination
meter (through the unified meter and A/C amp.) (with CAN communication).
IPDM E/R
Controls the integrated relay according to the request from BCM (with CAN communi-
cation).
COMBINATION METETR
• Enters in nighttime mode according to the request from BCM (with CAN communi-
cation).
• Controls the each illumination in the nighttime mode.
Refer to
MWI-25, "METER ILLUMINATION CONTROL : System Diagram"
.
Combination switch
(Lighting & turn signal switch)
Refer to
.
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