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