Mitsubishi Lancer (4A9 engine). Manual — part 305
HEATER UNIT AND BLOWER ASSEMBLY
HEATER, AIR CONDITIONER AND VENTILATION
55A-101
DISASSEMBLY AND REASSEMBLY
M1552020900702
ACA00925
1
AB
2
3
4
5
6
7
8
9
10
11
12
27
30
29
27
15
16
18
13
N
17
14
19
20
21
22
25
24
26
31
32
33
28
23
Disassembly steps
1.
KOS-ECU
2.
Rear centre duct
3.
Front centre duct
4.
Foot duct
5.
Heater control unit <Vehicles
without A/C> or A/C-ECU <Vehicles
with A/C>
6.
Air mixing damper control motor
7.
Mode selection damper control
motor
8.
Mode lever
9.
PTC heater <Diesel engine>
10. Outside/Inside air selection damper
control motor
11. Heater core cover
12. Heater core
13. Expansion valve
14. O-ring
15. Expansion valve cover
16. Upper case assembly
17. Evaporator
18. Fin thermo sensor
19. Air filter cover
20. Air filter
21. Power transistor
22. Blower motor
23. Air intake duct
24. Blower case upper
Disassembly steps (Continued)
HEATER HOSE <Diesel engine>
HEATER, AIR CONDITIONER AND VENTILATION
55A-102
INSPECTION
M1552014304101
FIN THERMO SENSOR CHECK
AC609399
25
20
15
10
5
0
AD
10
30
Resistance
(k )
Temperature ºC
0
40
-10
20
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.
HEATER HOSE <Diesel engine>
REMOVAL AND INSTALLATION <DIESEL
ENGINE>
M1551007700180
AC900342AB
49 ± 9 N·m
1
2
3
4
Heater hose removal steps
1.
Heater water hose A
2.
Heater water hose B
3.
Heater water hose assembly
4.
Grommet
25. Outside/inside air selection damper
26. Blower case lower
27. Upper case
28. Mode selection damper (FOOT)
29. Mode selection damper (DEF)
30. Air mixing damper
31. Wiring harness
32. Aspirator
33. Lower case
Disassembly steps (Continued)
Heater hose removal steps
MODE SELECTION DAMPER CONTROL MOTOR, AIR MIXING DAMPER CONTROL MOTOR, OUTSIDE/INSIDE
HEATER, AIR CONDITIONER AND VENTILATION
55A-103
MODE SELECTION DAMPER CONTROL MOTOR, AIR
MIXING DAMPER CONTROL MOTOR, OUTSIDE/INSIDE AIR
SELECTION DAMPER CONTROL MOTOR, POWER
TRANSISTOR AND BLOWER MOTOR
REMOVAL AND INSTALLATION
M1554014900419
AC708788AB
1
2
3
4
5
6
7
8
Power transistor removal steps
•
Bottom cover assembly
(passenger's side) (Refer to
GROUP 52A
− Instrument Panel ).
1.
Power transistor
Blower motor removal steps
•
Bottom cover assembly
(passenger's side) (Refer to
GROUP 52A
− Instrument Panel ).
2.
Hose
3.
Blower motor
Air mixing damper control motor,
mode selection damper control
motor and outside/inside air
selection damper control motor
removal steps
•
Foot duct (Refer to ).
•
A/C-ECU (Refer to ).
<<
A
>>
4.
Air mixing damper control motor
<<
A
>>
5.
Mode selection damper control
motor
6.
Clean air filter cover
7.
Clean air filter
<<
A
>>
>>
A
8.
Outside/inside air selection damper
control motor
MODE SELECTION DAMPER CONTROL MOTOR, AIR MIXING DAMPER CONTROL MOTOR,
HEATER, AIR CONDITIONER AND VENTILATION
55A-104
REMOVAL SERVICE POINT
<<A>> AIR MIXING DAMPER CONTROL MOTOR,
OUTSIDE/INSIDE AIR SELECTION DAMPER
CONTROL MOTOR, MODE SELECTION DAMPER
CONTROL MOTOR REMOVAL
NOTE:
AC100628
A normal plate-type ratchet driver is recommended.
INSTALLATION SERVICE POINT
>>A<< OUTSIDE/INSIDE AIR SELECTION
DAMPER CONTROL MOTOR INSTALLATION
Install the outside/inside air selection damper control
motor while pressing the outside/inside air selection
damper from the hole of the blower motor.
INSPECTION
M1552014304305
BLOWER MOTOR CHECK
AC611918
AH
<LHD>
AC711909AB
<RHD>
Check that the motor turns when applying battery
power between the connector terminals. Also check
to see that there is no abnormal sound emitted from
the motor at this time.
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