Mitsubishi 380. Manual — part 215

HEATER UNIT, HEATER CORE, BLOWER ASSEMBLY AND EVAPORATOR UNIT

HEATER, AIR CONDITIONING AND VENTILATION

55-156

BLOWER ASSEMBLY DISASSEMBLY AND ASSEMBLY

M1551005500209

25DB064A

1

2

3

5

4

DISASSEMBLY STEPS

1.

OUTSIDE/INSIDE AIR
SELECTION DAMPER CONTROL
MOTOR

2.

POWER TRANSISTOR

3.

BLOWER MOTOR

4.

BLOWER CASE UPPER

5.

BLOWER CASE LOWER

DISASSEMBLY STEPS

MOTORS AND TRANSISTOR

HEATER, AIR CONDITIONING AND VENTILATION

55-157

MOTORS AND TRANSISTOR

REMOVAL AND INSTALLATION

M1551006900028

AC209768

25DB065A

1

2

3

4

MODE SELECTION DAMPER
CONTROL MOTOR REMOVAL
STEP

1.

MODE SELECTION DAMPER
CONTROL MOTOR
POWER TRANSISTOR REMOVAL
STEP

•

GLOVE BOX ASSEMBLY,
INSTRUMENT CENTER PANEL
ASSEMBLY (REFER TO GROUP
52A, INSTRUMENT PANEL

P.52A-4

).

2.

POWER TRANSISTOR

BLOWER MOTOR REMOVAL
STEP

3.

BLOWER MOTOR
OUTSIDE/INSIDE AIR
SELECTION DAMPER MOTOR
REMOVAL STEP

•

GLOVE BOX ASSEMBLY,
INSTRUMENT CENTER PANEL
ASSEMBLY (REFER TO GROUP
52A, INSTRUMENT PANEL

P.52A-4

).

4.

OUTSIDE/INSIDE AIR
SELECTION DAMPER MOTOR

MOTORS AND TRANSISTOR

HEATER, AIR CONDITIONING AND VENTILATION

55-158

INSPECTION

M1551006300338

.

MODE SELECTION DAMPER CONTROL MOTOR
CHECK

CAUTION

Do not apply battery voltage when the damper is in the
FACE or DEF position.
Check the mode selection damper control motor by the follow-
ing procedures.

.

POTENTIOMETER CHECK

While checking the mode selection damper control motor, mea-
sure the resistances between terminal numbers 3 and 5 and
between terminal numbers 3 and 7. At this time, the resis-
tances should change gradually within the standard value.

Standard value: 0.8 (DEF)

− 4.8 (FACE) kΩ

.

OUTSIDE/INSIDE AIR SELECTION DAMPER
CONTROL MOTOR CHECK

CAUTION

Cut off the battery voltage when the damper is in the
inside/outside air position.
Check the outside/inside air selection damper control motor by
the following procedures.

LEVER POSITION BATTERY

CONNECTION

LEVER
OPERATION

At the FACE
position

• Connect

terminal 2 to the
positive battery
terminal

• Connect

terminal 1 to the
negative battery
terminal

The lever moves
from the FACE
position to the DEF
position

At the DEF position

• Connect

terminal 1 to the
positive battery
terminal

• Connect

terminal 2 to the
negative battery
terminal

The lever moves
from the DEF
position to the
FACE position

25DB066A

FACE POSITION

DEF POSITION

1 2

4

3

5

7

6

25DB067A

OUTSIDE POSITION

INSIDE POSITION

C-106

MOTORS AND TRANSISTOR

HEATER, AIR CONDITIONING AND VENTILATION

55-159

.

BLOWER FAN AND MOTOR CHECK

When battery voltage is applied between the terminals, check
that the motor operates. Also, check that there is no abnormal
noise.

LEVER POSITION BATTERY

CONNECTION

LEVER
OPERATION

At the inside
position

• Connect

terminal 1 to the
positive battery
terminal

• Connect

terminal 7 to the
negative battery
terminal

The lever moves
from the outside
position to the
inside position

At the outside
position

• Connect

terminal 1 to the
positive battery
terminal

• Connect

terminal 5 to the
negative battery
terminal

The lever moves
from the inside
position to the
outside position

AC209862