Q45t V8-4130cc 4.1L DOHC MFI (VH41) (1997)
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License Plate Lamp: Description and Operation
Power is supplied at all times
^
to tail lamp relay terminals (1) and (6)
^
through 15 A fuse [No. [63], located in the fuse, fusible link and relay box].
Ground is supplied
^
to the lighting switch terminals (5) and (8)
^
through body grounds (E22) and (E36).
SWITCH OPERATION
When the lighting switch is turned to 1ST or 2ND position, ground is supplied
^
to tail lamp relay terminal (2)
^
from the lighting switch terminal (11).
Tail lamp relay is then energized, and power is supplied
^
from tail lamp relay terminal (7)
^
to power terminals of parking, license and tail lamps.
With power supplied, parking, license and tail lamps illuminate.
AUTO LIGHT OPERATION
Body Control Module (BCM) is connected to the optical sensor. The optical sensor sends a signal to BCM according to outside brightness.
When the lighting switch is turned to AUTO position, ground is supplied
^
to BCM terminal (14)
^
from the lighting switch terminal (42)
When ignition switch is set to ON or START and outside is darker than the prescribed level, ground is supplied
^
to tail lamp relay terminal (2)
^
from the BCM terminal (1).
Tail lamp relay is then energized, and parking, license and tail lamps illuminate.
Auto light operation allows these lamps to turn off when outside is brighter than the prescribed level.
Or the ignition switch is turned to the OFF position.
For detailed wiring diagram of auto light, see "HEADLAMP".
