1900 MITSUBISHI DIAMANTE climate control

CHASSIS ELECtRldAL 6-9
93156g27 Fig. 21 Exploded view of the blower motor
and related components-1999-00 Galant
To install:
6. Check the inside of the case carefully; any
debris can snag the fan and cause noise or poor air-
flow.
7. Install the blower motor, in the blower case
and secure with the three mounting bolts,
8. Attach the blower motor electrlcal connector,
9. Install the compressor module, if removed.
10. Install the undercover, takmg care to insure it
is in place and all the fasteners are secure.
11. Connect the negative battery cable.
Diamante
u See Figures 22 and 23
1. Disarm the air bag, as outlined earlier in this
section.
Wait at least 1 minute before working on the
vehicle. The air bag system is designed to
retain enough voltage to deploy the air bag
for a short period of time even after the bat-
tery has been disconnected.
2. Remove the passenger side lower instrument
panel and shower duct,
3. Remove the glove box striker, glove box,
glove box outer casing and the screw below the as-
sembly.
4. Remove the evaporator case mounting bolt
and nut.
5. Remove the inside/outside air changeover
damper motor assembly.
6 Remove the PCM, mounting bracket and MFI
control relay.
7. Remove the instrument panel passengers
side lower bracket.
8. Remove the molded hose from the blower as-
sembly.
9. Remove the blower motor assembly.
10. Remove the fan retaining nut and fan in order
to replace the motor,
To install: 11. Check that the blower motor shaft is not bent
and that the packing is in good condition, Clean all
parts of dust, etc.
12. Assemble the motor and fan. Install the
blower motor then attach the connector.
13. Install the molded hose. Install the duct or
undercover.
14. Install the evaporator case mounting bolt and
nut. 15. Install the instrument panel passengers side
lower bracket.
16. Install the PCM, mounting bracket and MFI
control relay.
17. Install the inside/outside air changeover
damper motor assembly.
18. Install the screw below the glove box assem-
bly, and the entire glove box unit.
19. Install the lower instrument panel and shower
duct.
20. Connect the negative battery cable and check
the entire climate control system for proper opera-
tion.
REMOVAL & INSTALLATION
Diamante
u See Figures 24
and 25
1. Disarm the air bag Refer to the procedure
earlier in this section.
2. Dram the cooling system and disconnect the
heater hoses from the core tubes. Plug the hoses.
3. Remove the passenger side undercover.
4. Remove the right side foot shower duct. 5. To remove the console, remove the ashtray
and remove the revealed screw. Then remove the 4
screws from the sides of the assembly and remove.
6. Remove the decorative plugs from the drl-
ver’s knee protector. Remove the revealed screws, the
knee protector assembly and the protector support
bracket.
7. Remove the steering column covers.
8. Remove the glove box striker, glove box,
glove box outer casing and the screw below the as-
sembly.
9. Remove the radio bezel and the stereo enter-
tainment system.
10. Remove the climate control system control
head.
11. Remove the cup holder.
12. Remove the speakers from the top of the in-
strument panel.
13. Remove the instrument cluster bezel and the
instrument cluster.
14. To remove the speedometer cable adapter
from the instrument panel, first disconnect the
speedometer cable from the transaxle. Then unlock
the adapter from the instrument panel, pull the
speedometer cable slightly inwards, and remove the
adapter
15. Detach all steering column connectors, re-
move the column mounting bolts, and allow the
steering column to rest on the front seat. Be very
Fig. 23 Exploded view of the blower motor
and related components-1997-00 Dia-
Fig. 25 Heater core and related components
exploded view-1997-00 Diamante

640 CHASSIS ELECTRICAL
careful not to allow anything to come in contact with
the air bag unit.
16. Remove the glove box lamp assembly.
17. Remove the remaining instrument panel
mounting screws and remove the instrument panel
from the vehicle.
18. Remove the left side foot shower ductwork,
lap cooler duct and center duct.
19. Remove the front and center reinforcements
and center stay assembly.
20. Remove the air distribution duct assembly.
21. Detach all connectors from heater-box-
mounted items.
22. Remove the heater box mounting screws and
nut, then remove the unit from the vehicle.
23. Disassemble on a workbench. Remove the
heater core from the heater case.
To install:
24. Thoroughly clean and dry the inside of the
case and install the heater core and all related parts.
25. Install the heater unit to the vehicle and install
the mounting screws and nut. Be sure the evaporator
case and heater case are fitted together properly. At-
tach all connectors to heater-box-mounted items.
26. Install the air distribution duct assembly. In-
stall the front and center reinforcements and center
stay assembly.
27. Install the center duct, lap cooler duct and left
side foot shower duct.
28. Install the instrument panel and mounting
screws.
29. Install the glove box lamp assembly.
30. Secure the steering column and attach all
steering column connectors.
31. Install the speedometer cable adapter to the
instrument panel.
32. Install the instrument cluster and the instru-
ment cluster bezel.
33. Install the speakers to the top of the instru-
ment panel.
34. Install the cup holder.
35. Install the climate control system control
head.
36. Install the stereo entertainment system and
bezel.
37. Install the screw below the glove box assem-
bly, and the entire glove box unit.
38. Install the steering column covers.
39. Install the knee protector support bracket, the
protector and the decorative plugs.
40. Install the console and the ashtray. 41. Install the right side foot shower duct.
42. Install the passenger side undercover.
43. Connect the heater hoses to the core tubes.
44. Fill the cooling system.
45. Connect the negative battery cable and check
the entire climate control system for proper operation
and leaks.
Galant
# See Figures 26, 27, and 28
1. Disconnect the negative battery cable.
2. Disarm the air bag. Refer to the procedure
earlier in this section.
3. With the engine cold, set the temperature
control lever to the FULL HOT position. Drain the en-
gine coolant.
4. Disconnect the coolant hoses running to the
heater pipes at the firewall.
5. Remove the center console.
6. Remove the heater cover.
7. Remove the steering wheel.
8. Remove the small steering column panel.
9. Remove the undercover.
10. Remove the upper and lower steering column
covers and detach the wiring connectors.
11. Remove the instrument cluster hood.
12. Remove the mounting screws for the instru-
ment cluster.
13. Pull the cluster out and disconnect the
speedometer adapter behind the cluster. Remove the
cluster.
14. Remove the floor console and the under-
frame.
15. Disconnect and remove the air duct, lap
heater duct, side defroster duct and the vertical de-
froster duct.
16. Remove the glove box.
17. Remove the ashtray and its mount. Discon-
nect the light wiring before removing.
18. Remove the heater control faceplate.
19. Remove the heater control panel and discon-
nect its harness.
20. Remove the right side undercover from the
instrument panel and remove the underframe.
21. On the left side of the instrument panel, re-
move the fuse box cover and unbolt the fusebox from
the instrument panel.
22. Remove the front pillar (windshield pillar
trim) from each pillar.
23. Remove the kick panel trim from each side.
Fig. 26 Exploded view of the heater core and
related components-1990-93 Galant
:IQ. 27 Exploded view of the heater core and
-elated components-1994-98 Galant 24. Loosen the defroster garnish, disconnect the
photo sensor wiring and remove the garnish and de-
froster grille.
25. Remove the grille for the center air outlet.
26. Remove the bolts holding the steering col-
umn bracket to the instrument panel.
27, Remove the center reinforcement bracket.
28. On the left side, remove the retaining nuts
holding the instrument panel underframe to the body.
29. On the right side, remove the underframe re-
taining bolts. Note that the bolts are different; the
flanged bolt must be correctly reinstalled.
30. Remove the remaining nuts and bolts holding
the instrument panel. As the instrument panel comes
loose, label and disconnect the wiring harnesses.
Carefully remove the instrument panel.
31. If equipped with automatic climate control,
remove the power control unit on the lower front of
the heater unit.
32. Remove the duct joint between the heater unit
and evaporator case (with air conditioning) or blower
assembly (heater only).
33. Carefully separate the vacuum hose harness
at the connector.
34. Remove the heater unit from the vehicle.
35. To remove the heater core, first remove the
cover from the water valve. Disconnect the links and
remove the vacuum actuator.
36. Remove the clamps and slide the heater core
out of the case. Remove the water valve after the core
is removed.
37. With the case removed, the heater core may
be changed after the water valve is removed. Remove
the plastic cover, remove the clamps and hose and
remove the water valve.
To install:
38. Thoroughly clean and dry the inside of the
case. Install the core and the water valve, using new
hose or clamps.
39. Install the vacuum actuator and the connect-
ing link. Put the cover on the water valve.
40. Install the heater unit and tighten the mount-
ing bolts.
41. Carefully attach the vacuum hose connector
to the vacuum harness. Make certain the hoses mate
firmly and securely.
42. Install the heater cover, then install the center
console.
43. Install the duct joint between heater and evap-
orator or blower.
44. Install the power control unit and carefully
connect the links and rods.
Fig. 28 Exploded view of the heater core and
related components-1999-00 Galant

CHASSIS ELECTRICAL 6-11
45. Install the heater hoses under the hood.
46. Install the mstrument panel by reversing its
removal procedure.
47. Install the center console.
48. install the upper and lower steering column
covers.
49. Install the center panel undercover.
50. Install the small column panel.
51. Install the steering wheel.
52. Fill the cooling system.
53. Connect the negative battery cable and check
the entire climate control system for proper operation
and leaks.
Mirage
# See Figures 29, 30, and 31
1. Disconnect the negative battery cable.
2. Drain the cooling system and disconnect the
heater hoses.
3. Remove the front seats by removing the cov-
ers over the anchor bolts, the underseat tray, the seat
belt guide ring, the seat mounting nuts and bolts and
disconnect the seat belt switch wiring harness from
under the seat. Then lift out the seats
4. Remove the floor console by first taking out
the coin holder and the console box tray. Remove the
remote control mirror switch or cover. All of these
items require only a plastic trim tool to carefully pry
them out.
5. Remove the rear half of the console.
6. Remove the shift lever knob on manual trans-
mission vehicles.
7. Remove the front console box assembly.
8. A number of the instrument panel pieces may
be retamed by pin type fasteners. They may be re-
moved using the following procedure:
a. Press down on the center pin with a suit-
able blunt pointed tool. Press down a little more
than l/re in. (2mm) to release the clip. Pull the
clip outward to remove it.
b. Do not oush the oin inward more than
necessary because it may damage the grommet
or the pin may fall in if pushed in too far. Once
the clips are removed, use a plastic trim stick to
pry the piece loose.
9. Remove both lower cowl trim panels (kick
panels).
10. Remove the ashtray.
11. Remove the center panel around the radio.
12. Remove the sunglass pocket at the upper left
side of panel and the side panel into which it mounts,
13. Remove the drivers side knee protector and
the hood release handle.
14. Remove the steering column top and bottom
covers.
15. Remove the radio.
16. Remove the glove box striker and box assem-
bly.
17. Remove the instrument panel lower cover, 2
small pieces in the center, by pulling forward.
18. Remove the heater control assembly screw.
19. Remove the instrument cluster bezel and pull
out the Qauge assembly.
20. Remove the speedometer adapter by discon-
necting the speedometer cable at the transaxle
pulling the cable Sightly towards the vehicle interior
and giving a Slight twist on the adapter to release it.
21. Insert a small flat-tipped tool to open the tab
on the QauQe cluster connector. Remove the harness
connectors.
Fig. 29 Exploded view of the heater core and related components-1990-92 Mirage
93l%Q% Fig. 30 Heater core and related compo-
nents-1993-96 Mirage
22. Remove, by prying with a plastic trim tool, the
right side speaker cover and the speaker, the upper
side defroster grilles and the clock or plug to gain ac-
cess to some of the instrument panel mounting bolts.
23. Lower the steering column by removing the
bolt and nut.
24. Remove the instrument panel bolts and the
instrument panel.
25 Drsconnect the air selection, temperature and
mode selection control cables from the heater box
and remove the heater control assembly.
26. Remove the connector for the MFI control re-
lay.
27. Remove both stamped steel instrument panel
supports.
28. Remove the heater ductwork.
29. Remove the heater box mounting nuts.
30 Remove the automatic transmission ELC con-
trol box.
31. Remove the evaporator mounting nuts and
clips.
32. With the evaporator pulled toward the vehicle
interior, remove the heater unit. Be careful not to
damage the heater tubes or to spill coolant.
33. Remove the cover plate around the heater
tubes and the core fastener clips. Pull the heater core 34. Thoroughly clean and dry the inside of the
case. Install the heater core to the heater box. Install
the clips and cover,
35. Install the evaporator and the automatic trans-
mission ELC box.
36. Install the heater box and connect the duct
Fig. 31 Exploded view of the heater core and
related components-1997-00 Mirage
from the heater box, being careful not to damage the
fins or tank ends.
To install: I
work.
37. Connect all wires and control cables,
38. Install the instrument panel assembly and the
console by reversmg their removal procedures.
39 Install the seats.
40. Refill the cooling system.
41. Connect the negative battery cable and check
the entire climate control system for proper opera-
tion Check the system for leaks.
REMOVAL &INSTALLATION
Repair or service of air Conditioning components
is not covered by this manual, because of the risk of

6-12 CHASSIS ELECTRICAL
personal injury or death, and because of the legal
ramifications of servicing these components without
the proper EPA certification and experience. Cost,
personal injury or death, environmental damage, and
legal considerations (such as the fact that it is a fed-
eral crime to vent refrigerant into the atmosphere),
dictate that the A/C comoonents on your vehicle 4. Move the air selection controi lever to the RE-
CIRC position. Move the air selection damper FULLY
INWARD and connect the cable to the lever. Adjust as
required. C. Push the outer cable in the direction of the
arrow so that there is no looseness, then secure
should be serviced only’by a Motor Vehicle Air Con-
ditioning (MVAC) trained, and EPA certified automo-
REMOVAL&INSTALLATION tive technician. with the clip.
d. Set the knob for the air outlet changeover
on the control to the DEF position.
e. Set the air outlet changeover damper lever
of the heater unit to the DEF position, then attach
the cable to the lever pin.
f. Push the outer cable in the direction of the
arrow so there is no loosen&s, then secure it
with the clip. *If your vehicle’s A/C system uses R-12 re-
frlgerant and is in need of recharging, the
AK system can be converted over to R-Ma
refrigerant (less environmentally harmful
and expensive). Refer to Section 1 for addi-
tional information on R-12 to R-134a eonver-
sions, and for additional considerations
dealing with your vehicle’s A/C system. ti See Figures 32 thru 45
1. Disconnect the negative battery cable.
2, Unfasten the retaining clips and remove the
center trim panel.
3. Remove the radioltape and/or CD player as-
sembly,
4. Remove the control assembly as follows:
a. Remove the retaining screw(s).
b. Press the lever pin to disconnect the air
outlet changeover damper cable.
*The boss and clamp are needed for the as-
ADJUSTMENT
1. Disconnect the negative battery cable. Remove sembly line d
ever they are
dedures.
n Cnan i luring factory installation, how-
not necessary for service pro-
the glove box, if necessary,
2. Move the mode selection lever to the DE-
FROST position. Move the mode selection damper
lever FULLY INWARD and connect the cable to the
lever. Adiust as required.
3. M&e tht
3 temperature control lever to its
HOlli
5ST position. Move the blend air damper lever
FULL’t
’ DOWNWARD and connect the cable to the
lever. i
4djust as required. b,. dIIal, the boss and clamp with a pair of
nippers, to remove the heater control assembly
from the vehicle.
To install:
5. Install the control panel, as follows:
a. Set the temperature control knob on the
panel to MAX HOT..
b. Set the air mix damper lever at the upper
part of the heater unit to the MAX HOT position,
then attach the cable to the lever pin.
then remove the shi
Fig. 32 Using a suitable prytool, release the
automatic transaxles
93156p27 Fig. 35 . . .
then remove the center trim
panel from the vehicle
/(twiperside)... y Fig 36 Remove the radio retaining screws g. Set the lever for the inside/outside air
changeover on the heater control assemblv to the
air recirculation position.
h. Set the inside/outside air changeover
damper lever of the blower unit to the air recircu-
lation position (with the inside/outside air
changeover damper lever touched to the stopper
of the blower case), then attach the cable to the
lever pin.
i. Push the outer cable in the direction of the
arrow so that there is no looseness, then secure
it with the clip.
j. Properly position the control assembly and
secure with the retaining screw(s).
6. Install the stopper.
7. Connect the negative battery cable and check
the climate control system for proper operation be-
fore installing the remaining components.
8. Install the radio/tape and/or CD player as-
sembly.
9. Install the center trim oanel, makina sure the
clips are engaged properly. -
10. Connect the negative battery cable.
Fig. 34 Remove the two center trim panel
retaining screws . . .
Fig. 37, . . then slide the radio chassis and
bracket out of the instrument Dane1

11-2 TROUBLESHOOTING
Condition
Section/Item Number
The following troubleshooting charts are divided into 7 sections covering engine, drive train, brakes, wheels/tires/steering/suspension, electrical accessories, instruments and gauges,
and climate control. The first portion (or index) consists of a list of symptoms, along with section and item numbers. After selecting the appropriate condition, refer to the corresponding
diagnostic procedure in the second portion’s specified location.
INDEX
Gasoline Engines Engine turns over, but will not start
Engine does not turn over when attempting to start
Engine stalls immediately when started
Starter motor spins, but does not engage
Engine is difficult to start when cold
Engine is difficult to start when hot
Diesel Engines Engine turns over but won’t start
Engine does not turn over when attempting to start
Engine stalls after starting
Starter motor spins, but does not engage
Engine is difficult to start I-A, 1
l-A, 2
I-A, 3
I-A, 4
I-A, 5
I-A, 6
I-A, 1
l-A, 2
I-A, 3
I-A, 4
l-A, 5
Gasoline Engines Engine runs poorly, hesitates
Engine lacks power
Engine has poorfuel economy
Engine runs on (diesels) when turned off
Engine knocks and pings during heavy acceleration, and on steep hills
Engine accelerates but vehicle does not gain speed
Diesel Engines Engine runs poorly
Engine lacks power l-B, 1
I-B, 2
l-B, 3
I-B, 4
l-B, 5
I-B, 6
l-B,-1
l-B, 2
Engine makes a knocking or pinging noise when accelerating
Starter motor grinds when used
Engine makes a screeching noise
Engine makes a growling noise
Engine makes a ticking or tapping noise
Engine makes a heavy knocking noise
Vehicle has a fuel odor when driven
Vehicle has a rotten egg odor when driven
Vehicle has a sweet odor when driven
Engine vibrates when idling
Engine vibrates during acceleration
Battery goes dead while driving
Battery goes dead overnight
Engine overheats
Engine loses coolant
Engine temperature remains cold when driving
Engine runs hot
Exhaust rattles at idle speed
Exhaust system vibrates when driving
Exhaust system seems too low
Exhaust seems loud l-C, 1
l-C, 2
l-C, 3
I-C, 4
l-C, 5
I-C, 6
l-C, 7
l-C, 8
I-C, 9
I-C, 10
l-C, 11
l-C, 1
I-C, 2
I-D, 1
I-D, 2
I-D, 3
I-D, 4
l-F, 1
l-F, 2
I-F, 3
I-F, 4