Mitsubishi Lancer Evolution IX. Manual — part 561
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SENSORS
HEATER, AIR CONDITIONER AND VENTILATION
55-117
REMOVAL SERVICE POINT
<<A>> PHOTO SENSOR REMOVAL
1. Remove the photo sensor together with the
defroster nozzle.
2. Suspend the connector with a string to avoid the
connector drops behind the instrument panel.
INSPECTION
M1552014302150
INTERIOR TEMPERATURE SENSOR
CHECK
Check to see that the resistance shown in the graph
is almost satisfied when measuring the resistance
between the terminals under two or more different
temperature conditions.
HEATER WATER TEMPERATURE SEN-
SOR CHECK
Check to see that the resistance shown in the graph
is almost satisfied when measuring the resistance
between the terminals under two or more different
temperature conditions.
PHOTO SENSOR CHECK
Check that the blower rotation comes down if the
photo sensor is covered with hands, when the auto-
matic A/C is operating (in summer sunbeam). If not
the rotation comes down, replace the photo sensor.
AC504803AB
String
Photo sensor connector
AC503134
20
15
10
5
0
-10 0
20
40
60
80
AB
Resistance
(k )
Temperature (˚C)
AC503134
20
15
10
5
0
-10 0
20
40
60
80
AB
Resistance
(k )
Temperature (˚C)
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EVAPORATOR ASSEMBLY
HEATER, AIR CONDITIONER AND VENTILATION
55-118
EVAPORATOR ASSEMBLY
REMOVAL AND INSTALLATION <LHD>
M1552003600496
REMOVAL SERVICE POINT
<<A>> FLEXIBLE SUCTION HOSE/LIQUID
PIPE B DISCONNECTION
CAUTION
As the compressor oil and receiver are highly
moisture absorbent, use a non-porous material
to plug the hose and nipples.
To prevent the entry of dust or other foreign bodies,
plug the dismantled hose and the nipples of the
expansion valves.
Pre-removal and Post-installation Operation
• Refrigerant draining and Refilling (Refer to Charging and
discharging
• Air cleaner and air cleaner air flow sensor assembly
Removal and Installation (Refer to GROUP 15, Air
cleaner
).
AC504937
1, 2, 4, 7
A/C compressor oil:
SUN PAG 56
O-ring
-Pipe coupling
2
10
1
3
4
7
6
5
9
8
8
12 ± 2 N·m
AB
Removal steps
<<
A
>>
1.
Flexible suction hose connection
<<
A
>>
2.
Liquid pipe B connection
3.
Expansion valve
4.
Joint
•
Glove box (Refer to GROUP 52A,
Instrument Panel
•
Engine-ECU (Refer to GROUP
13A, Engine-ECU
).
5.
Joint duct
•
Foot duct (RH), Rear heater duct A
(RH) upper side (Refer to
6.
Evaporator cover
7.
Evaporator
8.
O-ring
9.
Air thermo sensor clip
10. Air thermo sensor
Removal steps (Continued)
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EVAPORATOR ASSEMBLY
HEATER, AIR CONDITIONER AND VENTILATION
55-119
REMOVAL AND INSTALLATION <RHD>
M1552003600504
Pre-removal and Post-installation Operation
• Refrigerant draining and Refilling (Refer to Charging and
discharging
• Air cleaner and air cleaner air flow sensor assembly
Removal and Installation (Refer to GROUP 15, Air
cleaner
).
AC304886AC
12 ± 2 N·m
7
7
2
1
9
8
6
5
4
3
1, 2, 6
A/C compressor oil:
SUN PAG 56
O-ring
-Pipe coupling
Removal steps
<<
A
>>
1.
Flexible suction hose connection
<<
A
>>
2.
Liquid pipe B connection
3.
Expansion valve
•
Glove box (Refer to GROUP 52A,
Instrument Panel
•
Engine-ECU (Refer to GROUP
13A, Engine-ECU
).
4.
Joint duct
•
Foot duct (RH), Rear heater duct A
(RH) upper side (Refer to
).
5.
Evaporator cover
<<
B
>>
6.
Evaporator
7.
O-ring
8.
Air thermo sensor clip
9.
Air thermo sensor
Removal steps (Continued)
![](/vehicles/winoney/wruvea/ger/veru.png)
EVAPORATOR ASSEMBLY
HEATER, AIR CONDITIONER AND VENTILATION
55-120
REMOVAL SERVICE POINT
<<A>> FLEXIBLE SUCTION HOSE/LIQUID
PIPE B DISCONNECTION
CAUTION
As the compressor oil and receiver are highly
moisture absorbent, use a non-porous material
to plug the hose and nipples.
To prevent the entry of dust or other foreign bodies,
plug the dismantled hose and the nipples of the
expansion valves.
<<B>> EVAPORATOR REMOVAL
CAUTION
Do not cut the upper side of the pad.
1. When removing the evaporator, cut and fold back
the dashboard pad as in the diagram (The thick-
ness of the pad interferes with the removal of the
evaporator).
2. Remove the evaporator.
INSPECTION
M1552014302161
AIR THERMO SENSOR INSPECTION
Measure the resistance between connector terminals
4 and 5 under at least two different temperatures.
The resistance values should generally match those
in the graph.
NOTE: The temperature at the check should not
exceed the range in the graph.
AC305312 AB
Dashboard pad
Blower unit
AC103376
Resistance
Temperature (˚C)
-10
0
10
20 30 40
(k )
0
5
10
15
20
25
AB
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