Mitsubishi Montero Sport (2004+). Manual — part 603

HEATER CONTROL ASSEMBLY, A/C SWITCH AND INSIDE/OUTSIDE CHANGEOVER SWITCH

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55-39

BLOWER SWITCH CONTINUITY CHECK

MICRO SWITCH CONTINUITY CHECK

SWITCH
POSITION

TESTER
CONNECTION

SPECIFIED
CONDITION

At the "OFF"
position

1

− 8

2

− 5

3

− 5

5

− 6

5

− 7

Open circuit

At the "LO" position 1

− 8

3

− 5

Less than 2 ohms

At the "ML" position 1

− 8

5

− 6

Less than 2 ohms

At the "MH"
position

1

− 8

2

− 5

Less than 2 ohms

At the "HI" position 1

− 8

5

− 7

Less than 2 ohms

AC002851AB

AIR OUTLET
CHANGEOVER
CONTROL KNOB
POSITION

TESTER
CONNECTION

SPECIFIED
CONDITION

At the
"DEFROSTER,
DEFROSTER/FOO
T" position

1

− 3

Less than 2 ohms

Other position

1

− 3

Open circuit

AC002852AB

HEATER UNIT AND HEATER CORE

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55-40

HEATER UNIT AND HEATER CORE

REMOVAL AND INSTALLATION

M1551001900078

WARNING

When removing and installing the heater unit, do not let it bump against the SRS-ECU or the
components.

Pre-removal and Post-installation Operation
• Refrigerant Discharging and Charging <Vehicles with

A/C> (Refer to

P.55-28

.)

• Engine Coolant Draining and Refilling (Refer to GROUP

14, On-vehicle Service

P.14-2

.)

• Instrument panel Removal and Installation (Refer to

GROUP 52A, Instrument Panel

P.52A-37

.)

• Joint Duct Removal and Installation <Vehicles without

A/C> (Refer to

P.55-3

.)

AC306350AB

1

2

3

4

5

6

7

10

8

9

N

PIPING

CONNECTION

COMPRESSOR OIL:
SUN PAG56

5

REMOVAL STEPS

1.

CENTER REINFORCEMENT

2.

CENTER VENTILATION DUCT

3.

DRAIN HOSE <VEHICLES WITH
A/C>

<<A>>

4.

SUCTION PIPE OR HOSE AND
DISCHARGE PIPE CONNECTION
<VEHICLES WITH A/C>

5.

O-RING

6.

HEATER HOSE CONNECTION

>>B<<

7.

EVAPORATOR <VEHICLES WITH
A/C>

8.

HEATER UNIT

>>A<<

9.

WATER SHUT MOTOR

10. HEATER CORE

REMOVAL STEPS (Continued)

HEATER UNIT AND HEATER CORE

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55-41

REMOVAL SERVICE POINT

.

<<A>> SUCTION PIPE OR HOSE, DISCHARGE PIPE DIS-
CONNECTION

CAUTION

Seal the hose completely, otherwise the compressor oil
and receiver will absorb water vapor easily, possibly dam-
aging the compressor and deteriorating performance.
Plug the disconnected hose and the evaporator nipple to pre-
vent foreign material from getting into them.

INSTALLATION SERVICE POINT

.

>>A<< HEATER CORE INSTALLATION
After replacing the heater core, check that the water shut valve
is at "OPEN" position when refilling engine coolant.

.

>>B<< EVAPORATOR INSTALLATION
When replacing the evaporator, refill with a specified amount of
compressor oil and install it (to the vehicle).

Compressor oil: SUN PAG56

Quantity: 70cm

3

(2.4 floz)

INSPECTION

M1552014301113

WATER SHUT MOTOR CHECK

CAUTION

When the motor stops, disconnect battery cable.

AC306351AB

OPEN
SIDE

CLOSE
SIDDE

LEVER POSITION BATTERY

CONNECTION

LEVER
OPERATION

At the open position

• Connect

terminal 3 to the
positive battery
terminal

• Connect

terminal 1 to the
negative battery
terminal

The lever moves
from the open
position to the
closed position

At the close
position

• Connect

terminal 3 to the
positive battery
terminal

• Connect

terminal 2 to the
negative battery
terminal

The lever moves
from the closed
position to the open
position

AC306351AB

OPEN
SIDE

CLOSE
SIDDE

BLOWER ASSEMBLY AND RESISTOR

TSB Revision

HEATER, AIR CONDITIONING AND VENTILATION

55-42

BLOWER ASSEMBLY AND RESISTOR

REMOVAL AND INSTALLATION

M1551002800245

AC002854 AB

1

2

3

4

5

6

7

8

9

10

11

4

<VEHICLES WITHOUT A/C>

<VEHICLES WITH A/C>

: Metal clip position

NOTE

RESISTER, BLOWER FAN AND
MOTOR REMOVAL STEPS

1.

UNDER COVER

2.

GLOVE BOX ASSEMBLY

3.

CORNER COVER

4.

RESISTOR

5.

BLOWER FAN AND MOTOR
BLOWER CASE REMOVAL
STEPS

•

INSTRUMENT PANEL (REFER TO
GROUP 52A, INSTRUMENT
PANEL

P.52A-37

.)

6.

GLOVE BOX FRAME

7.

JOINT DUCT <VEHICLES
WITHOUT A/C>

8.

COVER <VEHICLES WITH A/C>

9.

EVAPORATOR <VEHICLES WITH
A/C> (REFER TO

P.55-44

.)

10. INSIDE /OUTSIDE AIR

CHANGEOVER DAMPER MOTOR

11. BLOWER CASE ASSEMBLY

BLOWER CASE REMOVAL
STEPS (Continued)