Mitsubishi 1993 3000GT, Technical Information Manual

Page: 184 / 216

Lowering Headlamp
When the Pop-up Switch is Turned From ON to
OFF and the Lighting Switch is OFF or at TAIL
When the pop-up switch is turned OFF, the judgment
circuit in the ETACS control unit senses the OFF signal
and the DOWN timer circuit functions. Then, transistor
Tr4 also is ON since transistor Tr3 is turned ON, current
from transistor Tr4 passes through D-contact in the U/D
(UP/DOWN) switch and flows from the pop-up motor
relay (coil side) to earth, the pop-up motor relay (contact
side) goes ON, current flows to the pop-up motor and
the headlamp starts to go down. Since the connecting
U/D (UP/DOWN) switch contact changes from the D-
contact to the U-contact when the pop-up motor rotates
approximately 180
0
and reaches the position for auto-
matically stopping the down movement, current to the
pop-up motor is cut off, the pop-up motor stops and the
headlamp stays in the down position.
When the Pop-up Switch is OFF and the Lighting
Switch is Turned from HEAD to TAIL or OFF
When the lighting switch is turned to TAIL or OFF,
current to the headlamp relay (coil side) is cut off, the
headlamp relay (contact side) goes OFF and the judg-
ment circuit in the ETACS control unit senses the OFF
signal at the same time as the headlamp is extinguished
and, just as in the item mentioned above, the pop-up
motor relay goes ON and the head lamp goes down.
7 -12
ELECTRICAL - Lighting
16F0111
NOTES
(1) The dotted line
(2) The two-dotted line indicates a model with the theft-alarm system installed.
indicates models without a theft-alarm system.