Infiniti F50. Manual — part 666
ILLUMINATION
LT-131
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ILLUMINATION
PFP:27545
System Description
EKS000U6
The illumination lamp operation is controlled by the lighting switch which is built into the spiral cable and head-
lamp battery saver control unit. The battery saver system is controlled by headlamp battery saver control unit
and BCM.
Power is supplied at all times
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to tail lamp relay terminals 2 and 6
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through 15A fuse [No. 54, located in the fuse, fusible link and relay block (J/B)], and
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to headlamp battery saver control unit terminal 7
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through 10A fuse [No. 6, located in the fuse block (J/B) No. 1].
When ignition switch is in ON or START position, power is supplied
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to headlamp battery saver control unit terminal 1
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through 10A fuse [No. 1, located in the fuse block (J/B) No. 1].
Ground is supplied
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to headlamp battery saver control unit terminals 4 and 11
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through body grounds M25 and M115.
LIGHTING OPERATION BY LIGHTING SWITCH
When lighting switch is 1ST (or 2ND) position, ground is supplied
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to tail lamp relay terminal 1 from headlamp battery saver control unit terminals 6 and 14
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through headlamp battery saver control unit terminals 5 and 13, and
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through lighting switch and body grounds M25 and M115.
Tail lamp relay is then energized and illumination lamps illuminate.
The lighting switch must be in the 1ST or 2ND position for illumination.
The illumination control switch that controls the amount of current to the illumination system. As the amount of
current increases, the illumination becomes brighter.
The ground for all of the components except for grove box lamp, cigarette lighter socket, ashtray, auto return
cancel switch, rear control switch, rear sunshade rear switch, rear power seat switch and console box lamp
are controlled through terminals 2 and 3 of the illumination control switch and body grounds M25 and M115.
BATTERY SAVER CONTROL
When the ignition switch is turned from ON (or START) to OFF (or ACC) positions while illumination lamps are
illuminated, the RAP signal is supplied to terminal 10 of the headlamp battery saver control unit from BCM ter-
minal 135.
After counting 45 seconds by the RAP signal from the BCM to headlamp battery saver control unit, the ground
supply to terminal 1 of the tail lamp relay from headlamp battery saver control unit terminals 6 and 14 is termi-
nated.
Then illumination lamps are turned off.
Illumination lamps are turned off when driver or passenger side door is opened even if 45 seconds have not
passed after the ignition switch is turned from ON (or START) to OFF (or ACC) positions while illumination
lamps are illuminated.
When the lighting switch is turned from OFF to 1ST (or 2ND) after illumination lamps are turned off by the bat-
tery saver control, ground is supplied
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to headlamp battery saver control unit terminals 5 and 13 from lighting switch terminal 11, and
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to tail lamp relay terminal 1 from headlamp battery saver control unit terminals 6 and 14.
Then illumination lamps illuminate again.
LT-132
ILLUMINATION
Schematic
EKS000U7
TKWM0338E
ILLUMINATION
LT-133
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LT
TKWM0373E
LT-134
ILLUMINATION
Wiring Diagram — ILL —
EKS000U8
TKWM0410E
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