1990 MITSUBISHI SPYDER heater

HEATER, AIR
AND VENTILATION Heater
HEATER CONTROL ASSEMBLY
REMOVAL AND INSTALLATION
When and the floor console as-
let it
orthecomponents.
NOTE metal clip positions.
Removal steps
1. Center panel
2. Floor console (Refer to GROUP
Floor Console.)
3. Radio, tape player and CD player (Refer to GROUP
Radio,
Tape Player, CD
Speaker and Antenna.)
4. Stopper
5. Heater control assembly
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AIR ,
AND VENTILATION Heater
R E M O V A L
HEATER CONTROL REMOVAL
(1)Press the lever pin to disconnect the air outlet changeover
damper cable.
(2) Snap the boss and clamp with nippers or a flat- tipped
screwdriver, etc to remove the heater control assem bly.
NOTE
The boss and clamp are needed for assembly line at
the factory, but not needed for service work.
INSTALLATION SERVICE POINTS
HEATER CONTROL ASSEMBLY INSTALLATION
(1) Always snap the boss and clamp before installin g a new
heater control assembly to the instrument panel.
NOTE
The boss and clamp are ‘needed for assembly line at
the factory, but not needed for service work.
(2) Set the temperature control knob on the heater control
assembly to MAX HOT.
(3) Set the air mix
lever. at, the upper part of the
heater unit to the MAX HOT position, install the cable
to the lever pin.
(4) Push the outer cable in the direction of the ar row so
that there is no looseness, and then ‘secure it wit h the
clip.
,
(5) Set the knob for the air outlet changeover on the heater
control assembly to the DEF position.
(6) Set the air outlet changeover damper lever of t he heater
unit to DEF position and install the cable to the lever
pin.
(7) Push the outer cable in the direction of the ar row so
that there is no looseness, and then secure it with the
clip.
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Air-recirculation position
HEATER, AIR
AND VENTILATION Heater Control Assembly
(8)Set the lever for the inside/outside air changeover
the heater control assembly to the air-recirculatio n posi-
tion.
(9) Set the inside/outside air changeover damper le ver of
the blower unit to air-recirculation, position (with the inside/
outside air changeover damper lever touched to the stop-
per of the blower case) and install the cable to the lever
the outer cable in the direction of the arrow so
that there is no looseness, and then secure it with the
.
clip.
INSPECTION
Check each knob and lever for proper operation and
possible damage.
lCheck the connection between the lever and cable.
lCheck that the cable sides properly.
Check the illumination light for a possible broken filament.
BLOWER SWITCH CONTINUITY CHECK
Switch Terminal No.I
12 3 4 5 6 7 8
OFF I I I
.0 0
0
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DEFROSTER SWITCH CONTINUITY CHECK
Terminal No.Air outlet changeover control knob 1
DEF,
Other than the above
00

55-22HEATER, AIR
AND Heater Control
DISASSEMBLY AND REASSEMBLY
damper cable
Disassembly steps
1.Knob2.Lever assembly3. Air conditioning switch
4.Knob assembly5. Bulb and socket assembly6.Defroster switch7. Air outlet changeover damper ca-
ble8. Air mix damper cable
9. Inside/outside air changeover10. Control base assembly
11. Knob assembly A
12.Panel case
13.Nut14.Control base15.Blower switch
NOTE
Parts from No. 11 to No. 14 are not supplied as sin gle
parts.
DISASSEMBLY SERVICE POINT
AIR OUTLET CHANGEOVER DAMPER
CABLE/AIR MIXING DAMPER CABLE/INSIDE/OUTSIDE AIR CHANGEOVER DAMPER
CABLE REMOVAL
a flat-tipped screwdriver to disengage the claws, and
then remove the cables.

HEATER, AIR
AND VENTILATION Air Conditioning Switch
AIR CONDITIONING SWITCH
REMOVAL AND INSTALLATION
Removal steps
1. Stopper 2. Center air outlet3. Center panel4. Air conditioning switch
indicates sheet metal clip positions.
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INSTALLATION POINT
CENTER AIR OUTLET INSTALLATION
(1)Turn the cool air bypass lever of the center air outlet
fully downward.
(2) Pull the cool air bypass damper lever on the he ater unit
side all the way toward you, and then connect the c able
to the lever pin.
(3) Push the outer cable in the direction of the ar row so
that there is no looseness, and then secure it with the
clip.
INSPECTION
AIR CONDITIONING SWITCH CONTINUITY CHECK

HEATER, AIR
AND VENTILATION Heater Unit and Heater Core
HEATER UNIT AND HEATER CORE
REMOVAL AND INSTALLATION
Post-installation OperationRefilling CoolantWhen and installing the floor console from vehicles equipped with SRS, do notlet it bump against the ECU or the components.
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Removal steps
l Instrument panel (Refer to GROUP
Instrument Panel.)1. Heater hose connection2. Center stay
3. Center duct
4. Semi rear heater duct
5. Foot distribution duct
6. Cooling unit installation bolt and nut 7 . C l i p
8. Heater unit
9. Heater core

HEATER, AIR
AND VENTILATION Heater Unit
HEATER HOSE DISCONNECTION”
Caution
The vehicle speed sensor for ‘below
the heater, hoses, so cover vehicle
a shop towel before any of the
Pin
Grommet
Pin
CLIP REMOVAL
‘(1) Use a Philips-head screwdriver to push inward the pin
(at the center of the clip) to adepth of about
in.).
(2) the clip outward to remove. it.
Caution
Do not push the pin inward more than be-
cause it may damage the grommet, or the
may
fall in, if pushed too far.
HEATER UNIT
After the cooling unit slightly, remove
the heater unit.
INSTALLATION SERVICE POINT .
CLIP INSTALLATION
(1) With the pin pulled out, insert the clip into t he hole.
(2) Push the pin inward until the pin’s head is flu sh with
the grommet.
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HEATER, AIR
AND VENTILATION Blower Assembly, and Resistor
BLOWER ASSEMBLY AND RESISTOR
REMOVAL AND INSTALLATION
When and installing the floor console as-
Resistor removal steps
1. Stopper2. Resistor
Blowerfan and motor removalsteps
3. Automatic compressor-ECM with A/C for non-turbo>
4. Blower fan and motor
8
Blower unit removal steps
5. Instrument panel (Refer to GROUP Instrument Panel) 6 . C l i p
7. Joint duct without 8.unit installation bolts and
nuts with 9. Blower unit assembly
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