Mitsubishi Colt Ralliart. Manual - part 537

HEATER CONTROL ASSEMBLY AND A/C SWITCH

HEATER, AIR CONDITIONER AND VENTILATION

55A-56

DISASSEMBLY AND REASSEMBLY

M1552014200265

AC206700AB

1

2

5

7

6

8

3

4

Disassembly steps 

1.

Switch panel

2.

Outside/Inside air selection switch

3.

A/C switch

4.

Rear window defogger switch

5.

Prism

<<

A

>>

6.

Mode selection damper control 
cable

<<

A

>>

7.

Air mixing damper control cable

8.

Heater control

DISASSEMBLY SERVICE POINT
<<A>> MODE SELECTION DAMPER CON-
TROL CABLE AND AIR MIXING DAMPER 
CONTROL CABLE REMOVAL

AC206424

AD

Clip claw

flat-tipped 
screwdriver

To remove the damper cable, insert the flat-tipped 
screwdriver from the inside of control base to the clip 
and remove the clip claw.

Main

Index

Group

TOC

HEATER UNIT AND COOLING UNIT

HEATER, AIR CONDITIONER AND VENTILATION

55A-57

HEATER UNIT AND COOLING UNIT

REMOVAL AND INSTALLATION

M1559900900050

Pre-removal and Post-installation Operation
• Engine coolant Draining and Refilling (Refer to 

P.14-4

.)

• Refrigerant draining and Refilling (Refer to Charging 

P.55A-48

, Discharging 

P.55A-48

.)

• Instrument Panel Removal and Installation (Refer to 

P.52A-3

.)

AC207741

3, 4

5

1

2

6

9

7

8

AB

4

3

N

5

N

7

-Pipe coupling

A/C compressor oil: 
SUN PAG 56

24 ± 4 N·m

24 ± 4 N·m

13± 1 N·m

 Removal steps 

•

Harness and clamp

•

Junction block installation

1.

Front deck crossmember assembly

2.

Air intake box

3.

Air intake duct

•

Air cleaner cover and engine air 
intake hose (Refer to GROUP 15, 
Air cleaner 

P.15-5

.)

•

Canister installation

4.

Expansion valve cover

<<

A

>>

5.

Flexible suction hose connection

<<

A

>>

6.

Liquid pipe B connection

7.

O-ring

8.

Heater hose

9.

Heater unit assembly

REMOVAL SERVICE POINT
<<A>> FLEXIBLE SUCTION HOSE AND 
LIQUID PIPE B DISCONNECTION

CAUTION

Use the plug which is not breathable because 
A/C compressor oil or receiver have high hygro-
scopicity.
Plug the removed nipple of the pipe, hose and 
expansion valve to prevent the entry of dust and dirt.

 Removal steps (Continued)

Main

Index

Group

TOC

HEATER UNIT AND COOLING UNIT

HEATER, AIR CONDITIONER AND VENTILATION

55A-58

DISASSEMBLY AND REASSEMBLY

M1551005400376

AC207717AB

2

17

22

21

20

14

13

9

8

7

6

3

4

1

23

24

5

17

19

15

16

N

10

11

18

12

Disassembly steps 

1.

Foot heater duct LH

2.

Foot heater duct RH

3.

Heater joint duct

4.

Heater core

5.

Resistor

6.

Blower motor

7.

FACE/DEF plate

8.

Mode main plate

9.

FACE/DEF sub plate

10. Foot sub plate
11. Foot plate
12. Heater control panel support spring
13. Air mixing plate
14. Air mixing main plate
15. Expansion valve
16. O-ring

>>

A

<<

17. Heater case
18. Heater lower case
19. Evaporator
20. Mode selection damper (FACE)
21. Mode selection damper (FOOT)
22. Air mixing damper
23. Air thermo sensor clip
24. Air thermo sensor

DISASSEMBLY SERVICE POINT
>>A<< HEATER CASE ASSEMBLY

Fix the area, which the heater case is installed by 
claw, with tapping screw when installing.

Disassembly steps (Continued)

Main

Index

Group

TOC

HEATER UNIT AND COOLING UNIT

HEATER, AIR CONDITIONER AND VENTILATION

55A-59

AIR THERMO SENSOR CHECK

M1552009200117

AC209196

-10

0

10

20

30

40

0

2

4

6

8

AB

RESISTANCE

TEMPERATURE (˚C)

(k

Ω)

Check that the resistance shown in the graph is 
almost satisfied when measuring the resistance 
between the terminals under two or more different 
temperature conditions.
NOTE: The temperature condition in checking 
should be within the range shown.

DISASSEMBLY AND REASSEMBLY

M1559901000038

AC400082AB

1

6

2

3

4

7

5

Disassembly steps 

1.

Outside/Inside air selection damper 
control motor

2.

Under cover

3.

Clean air filter

4.

Lower case

>>

A

<<

5.

Upper case

6.

Outside/Inside air selection plate

7.

Outside/Inside air selection damper

DISASSEMBLY SERVICE POINT
>>A<< CASE ASSEMBLY

Fix the area, which the heater case is installed by 
claw, with tapping screw when installing.

Main

Index

Group

TOC