Mitsubishi Lancer (4A9 engine). Manual — part 306
![](/vehicles/winoney/nst/lem/yol.png)
AMBIENT TEMPERATURE SENSOR
HEATER, AIR CONDITIONER AND VENTILATION
55A-105
AMBIENT TEMPERATURE SENSOR
REMOVAL AND INSTALLATION
M1554003400603
AC609030
1
AE
Removal steps
•
Air cleaner intake duct (Refer to
GROUP 15, Air Cleaner )
•
Headlamp support panel cover
(Refer to GROUP 51, Front
Bumper and Radiator Grille )
1.
Ambient temperature sensor
INSPECTION
M1552014304123
AMBIENT TEMPERATURE SENSOR
CHECK
AC508067AC
10
7
6
5
9
8
4
3
2
1
0
10
20
30
40
-10
0
RESISTANCE
TEMPERATURE (˚C)
(k )
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.
![](/vehicles/winoney/nst/lem/gerer.png)
A/C-ECU
HEATER, AIR CONDITIONER AND VENTILATION
55A-106
A/C-ECU
REMOVAL AND INSTALLATION
M1554016600447
Pre-removal and Post-installation Operation
• Glove Box and Bottom Cover Assembly (passenger's
side) Removal and Installation (Refer to GROUP 52A
−
Instrument Panel ).
• Foot duct Removal and Installation (Refer to ).
AC900349
Heater control unit
<Vehicles without A/C> or
A/C-ECU <Vehicles with A/C>
AB
![](/vehicles/winoney/nst/lem/yung.png)
PTC HEATER <Vehicles with PTC heater>
HEATER, AIR CONDITIONER AND VENTILATION
55A-107
PTC HEATER <Vehicles with PTC heater>
REMOVAL AND INSTALLATION
M1554023000179
WARNING
•
Before removing the front seat assembly, refer to GROUP 52B, Service Precautions and
Knee air bag module .
•
AC612223AB
1
Removal steps
•
Floor console, Floor console side
cover (Refer to GROUP 52A
−
Floor console assembly ).
•
Bottom cover (passenger side),
Glove box side panel, Glove box
damper, Glove box, Glove box
cover (Refer to GROUP 52A
−
Glove box ).
•
Instrument panel air outlet garnish
lower (RH), Instrument centre
panel, Instrument panel console
box, Instrument panel under cover
(Refer to GROUP 52A
− Instrument
centre panel ).
•
Instrument panel cover lower
<Vehicle with Instrument panel
cover lower>, Instrument panel
lower (Refer to GROUP 52A
−
Instrument centre panel ).
•
Foot duct LH, Foot duct RH (Refer
to ).
•
Knee air bag module (Refer to
GROUP 52B
− Knee air bag
module ).
•
Radio and CD player assembly
(Refer to GROUP 54A
− Radio and
CD player ).
<<
A
>>
1.
PTC heater
Never attempt to disassemble or repair the PTC sensor. If faulty, replace it with new
one(s).
REMOVAL SERVICE POINT
<<A>> PTC HEATER REMOVAL
Remove the PTC heater as described below.
Removal steps (Continued)
![](/vehicles/winoney/nst/lem/juranong.png)
AC700312
Foot duct centre
AB
Combination meter
PTC HEATER <Vehicles with PTC heater>
HEATER, AIR CONDITIONER AND VENTILATION
55A-108
1. Slide the foot duct centre so that a precision
screwdriver can be inserted from the upper side of
the PTC heater connector.
AC700311
PTC heater
connector
Precision screwdriver
AB
2. Insert a precision screwdriver from the upper side
of the PTC heater connector, and disconnect the
connector.
3. Remove the PTC heater screws.
AC700313
AB
Harness clamp
Steering column
lower cover
4. Remove the harness clamp shown in the figure,
and pull out the PTC heater.
INSPECTION
M1552014304316
PTC HEATER CHECK
AC701303
<C-53>
<C-52>
AB
Tester connection
Specified
condition
C-52 terminal No. 1
− C-53
terminal No. 1
Continuity exists
C-52 terminal No. 1
− C-53
terminal No. 2
Continuity exists
C-52 terminal No. 2
− C-53
terminal No. 2
Continuity exists
C-52 terminal No. 3
− C-53
terminal No. 2
Continuity exists
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