MITSUBISHI SPYDER 1990 Service Repair Manual

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
TSB Revision
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.
I Revision
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.
TSB Revision
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.
TSB Revision

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
TSB Revision

HEATER, AIR
AND VENTILATION Blower Assembly and. Resistor
Pin
met 0 0 0 0 0 1 9 4
GrommetI
REMOVAL SERVICE POINT
CLIP REMOVAL
(1) Use a Philips-head screwdriver to.. push inward the pin
(at the center of the clip), to a depth of about 2
in.).
(2) Pull the clip outward to
remove it.-‘:
Caution Do not push the pin inward more than necessary be-
cause it may damage the grommet, or the may
fall in, if pushed too far.
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.
IINSPECTION5 5 1 0 0 3 2 0 0 1 6
BLOWER FAN AND MOTOR CHECK
When battery voltage is applied between the termina ls, check
to be sure that the motor operates. Also, check that there
is no abnormal noise.
RESISTOR RESISTANCE CHECK
Use an ohmmeter to measure the resistance between t he
terminals as indicated below. Check that the measured value
is at the standard value.
Standard value:
Measurement terminalStandard, value
Between terminals 3-2 (LO)1.83’
Between terminals 3-4 (ML)0.87
Between terminals (MH)0.31
TSB Revision

HEATER, AIR
AND VENTILATION Cooling Unit
COOLING UNIT
REMOVAL AND INSTALLATION
and Post-installation OperationRefrigerant Discharging and Charging(Refer to
CAUTIONPlug refrigerant lines to prevent air from mixingwhen disconnecting them.
Compressor oil:
SUN PAG 56
6
0 0 0 0 3 6 3 4
Removal steps
1. Drain hose2. Suction pipe Engine
turbo)> or suction hose gine (Turbo) and Engine>connection3. Liquid pipe connection4. O-ring5. Stopper
6. Glove box7. Corner panel
8. Glove box under frame
9. Console side cover
10. Control unit cover11. ABS-ECU bracket12. Harness protector Engine
(Turbo) and Engine> 1 3 . 14. Cooling unit
TSB Revision

HEATER, AIR
AND VENTILATION Cooling Unit
Grommet
Pin
REMOVAL SERVICE POINT
R E M O V A L
(1) Use a Philips-head screwdriver to push inward t he pin
(at the center of the clip) to a depth of about 2 m m
in.).
(2) Pull the clip outward to remove it.
Caution
Do not push the pin inward more than necessary be-
cause it may damage ‘the or the pin may
fall in, if pushed too far.
INSTALLATION
U N I T
When replacing the cooling unit with new refill evapo-
rator with a specified amount of compressor oil.
Engine -(Turbo) and Engine>
Compressor oil: SUN PAG 56
Quantity: 60
(2.03
Engine (Non-turbo)>
Compressor oil:ND-OIL 8
Quantity: 40
(1.35
CLIP INSTALLATION
(1) With the pin pulled out, insert clip into the hole.
(2) Push the pin inward until the pin’s head
flush with
the grommet.
TSB Revision

HEATER, AIR
AND VENTILATION Cooling Unit
DISASSEMBLY AND REASSEMBLY5 5 2 0 1 0 6 0 0 2 6
7
oil:
SUN PAG 56
Engine
(Turbo) and Engine>
ND-OIL 6
Engine
(Non-turbo)>
0 0 0 0 3 6 3 5
Disassembly steps
1. Clip
2. Evaporator case (upper)
3. Fin sensor Engine (Non-turbo)>
4. Automatic compressor-ECM and fin
sensor assembly En-
gine (Turbo) and Engine> 5. Evaporator case (lower)
6. Expansion valve
7. O-ring
8. Evaporator
Resis-
tance
1 02030 40(14) (50) (68) (86) Temperature
INSPECTION
FIN SENSOR RESISTANCE CHECK
When the resistance value between the sensor termin als
is measured under two or more temperature condition s, the
resistance value should be close to the values show n in the
graph.
NOTE
Thetemperature conditions when testing should not exceed
the range of the characteristic curve in the graph.
TSB Revision
DISASSEMBLY SERVICE POINT
CLIP REMOVAL
Remove the clips with a flat-tipped screwdriver cov ered with
a shop towel to prevent damage to case surfaces.