Mitsubishi 3000GT 1994 Workshop Manual page 996

55-38
HEATER, AIR CONDITIONER
AND VENTILATION
-
Damper
conüor
Motor Assembry
INSPECTION
EssHcAv
INSPECTION
OF AIR
SELECTION DAMPER MOTOR AS.
SEMBLY
Check that
the motor rotates when battery voltage
is
applied
to
the
connector
on the motor
assembly side.
Check also that
the
motor rotates in the backward
direction
when polarity is
changed.
Caution
1. Cut off the vohage when the damper is in the
REGIR'
CUIAilON or FRESH position.
2.
Cut off the voltage
if the motor does not turn when
battery voltage is
applied.
INSPECTION OF
AIR MIX
DAMPER MOTOR
Check
that the motor rotates when battery voltage is
applied
across terminals @ and @
of motor assembly side connector'
Check also that
the motor turns
in
the backward direction when
polarity is
changed.
Gaution
1.
Gut off
the voltage when
the
damper
is in the
MAX.
HOT
or
MAX.
COOL Position.
2.
Cut
off the
vohage
if the motor does not turn when
battery voltage
is
aPPlied.
NSPECNON
OF AIR
MIX
DAMPER POTENTIOMETER
Connect
a
circuit tester across terminals @ and @ of the motor
assembly connector
and check
that
resistance
gradually
changes as
the damper
is
moved
from MAX. HOT
to
MAX.
COOL position.
Standard value
MAX.
HOT: APProx. 0.2 kO
MAX.
GOOL:
APProx.
'1.8
kO
INSPECTION OF MODE SELECTION DAMPER MOTOR
Check
that the motor turns when battery voltage is
applied
across terminals
@
and
@ of the motor assembly connector.
Check also that
thö motor turns
in
the backward direction when
polarity
is
changed.
Caution
1. Cut off the voltage when the damper is in the
DEF.
or
FACE position.
2.
Cut off the voltage
if the
motor does not turn when
battery voltage is
aPPlied.
P1YUE9119
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Motorc
Corporation
May 1992