2005 MITSUBISHI 380 ESP

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-149
POWER WINDOW MAIN SWITCH FUNCTION
The main switch is located on the driver’s door.
Raises the driver’s power window
When the driver’s power window switch on the power window
main switch is pulled up, the system energizes its respective
power window motor, and then the driver’s window glass rises.
Lowers the driver’s power window
When the driver’s power window switch on the power window
main switch is pushed down, the system energizes its respec-
tive power window motor, and then the driver’s window glass
lowers.
Lowers the driver’s power window by one-touch down
function
When the driver’s power window switch on the power window
main switch is pushed down fully, the system energizes its
respective power window motor, and then the driver’s window
glass moves to its lowest position.
Raises the passenger’s power window
When the passenger’s power window switch on the power win-
dow main switch is pulled up, the system energizes its respec-
tive power window motor, and then the passenger’s window
glass rises.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-150
Lowers the passenger’s power window
When the passenger’s power window switch on the power win-
dow main switch is pushed down, the system energizes its
respective power window motor, and then the passenger’s win-
dow glass lowers.
POWER WINDOW SUB SWITCH FUNCTION
The sub switches are located on the passenger’s doors.
Raises the passenger’s power window
When the power window sub switch is pulled up, the system
energizes its respective power window motor, and then the
passenger’s window glass rises.
Lowers the passenger’s power window
When the power window sub switch is pushed down, the sys-
tem energizes its respective power window motor, and then the
passenger’s window glass lowers.
Power window timer function
Even after the ignition is switched off, the ETACS-ECU keeps
the power window relay activated for approximately 30 sec-
onds, enabling raising and lowering of the power windows by
using the power window switches. After approximately 30 sec-
onds, the power window relay is deactivated.
During this timed operation, if the driver or passenger doors are
opened, the power window relay is deactivated from that
moment.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-187
INSPECTION PROCEDURE D-5: Power Window: Front or rear passenger's power windows do not
work at all by operating the power window main switch.
.
CIRCUIT OPERATION
When you operate each power window switch for
front or rear passengers (incorporated in the power
window main switch), the corresponding power win-
dow motor operates, opening or closing each power
window.
.
TECHNICAL DESCRIPTION (COMMENT)
If the corresponding power window opens and closes
normally when each power window sub-switch is
operated, the power window main switch may be
defective.
.
TROUBLESHOOTING HINT
Refer to circuit diagrams GROUP-90
Refer to configuration diagrams GROUP-80
The power window main switch may be defective
DIAGNOSIS
Check that power window sub switches operate normally.
Q: A power window cannot work by using the power
window main switch. Can you operate the power
window by using the corresponding power window sub
switch?
YES : Replace the power window main switch. Check that
the front or rear passenger's power window can work
normally by means of power window main switch.
NO : Refer to Symptom Chart P.54B-57 before resolving
this trouble.
KEYLESS ENTRY SYSTEM
GENERAL DESCRIPTION CONCERNING THE KEYLESS ENTRY SYSTEMM1549022000255
The following ECUs affect the functions and control
of the keyless entry system.
FUNCTIONCONTROL
ECU
All door lock function Pressing the transmitter lock button ETACS-ECU
Driver’s door unlock function Pressing the transmitter unlock button once ETACS-ECU
All door unlock function Pressing the transmitter unlock button twice ETACS-ECU
Trunk unlock function Pressing the transmitter trunk button twice ETACS-ECU
Keyless entry hazard answerback and horn answerback function ETACS-ECU
Timed locking mechanism ETACS-ECU

GENERAL DESCRIPTION
HEATER, AIR CONDITIONING AND VENTILATION55-3
GENERAL DESCRIPTIONM1552000100351
The heater and cooling units are combined in a sin-
gle unit, which, with the mode film damper and flow
rate control valve in the heater unit, reduces ventila-
tion resistance, increases fan power, and decreases
noise.
SAFETY PRECAUTIONS
Wear safety goggles and gloves when servic-
ing the refrigeration system to prevent
severe damage to eyes and hands.
Because R-134a refrigerant is a hydro fluorocarbon
(HFC) which contains hydrogen atoms in place of
chlorine atoms, it will not cause damage to the ozone
layer.
Ozone filters out harmful radiation from the sun. To
assist in protecting the ozone layer, Mitsubishi
Motors Corporation recommends an R-134a refriger-
ant recycling device.
Refrigerant R-134a is transparent and colorless in
both the liquid and vapor state. Since it has a boiling
point of
29.8C (21.64F) at atmospheric pressure,
it will be a vapor at all normal temperatures and pres-
sures. The vapor is heavier than air, non-flammable,
and non-explosive. The following precautions must
be observed when handling R-134a.
Do not heat R-134a above 40C (104.0F) or it
may catch fire and explode.
R-134a evaporates so rapidly at normal atmospheric
pressures and temperatures that it tends to freeze
anything it contacts. For this reason, extreme care
must be taken to prevent any liquid refrigerant from
contacting the skin and especially the eyes. Always
wear safety goggles when servicing the refrigeration
part of the A/C system. Keep a bottle of sterile min-
eral oil handy when working on the refrigeration sys-
tem.1. If any liquid refrigerant gets into your eyes, use a
few drops of mineral oil to wash them out. R-134a
is rapidly absorbed by the oil.
2. Next, splash your eyes with plenty of cold water.
3. Call your doctor immediately even if irritation has
ceased.
Keep R-134a containers upright when charging
the system.
In most instances, moderate heat is required to bring
the pressure of the refrigerant in its container above
the pressure of the system when charging or adding
refrigerant.
A bucket or large pan of hot water not over 40
C
(104.0
F) is all the heat required for this purpose. Do
not heat the refrigerant container with a blow torch or
any other means that would raise temperature and
pressure above this temperature. Do not weld or
steam-clean on or near the system components or
refrigerant lines.
A leak detector for R-134a should be used to
check for refrigerant gas leaks.
Do not allow liquid refrigerant to touch bright
metal or it will be stained.
When metering R-134a into the refrigeration system,
keep the supply tank or cans in an upright position. If
the refrigerant container is on its side or upside
down, liquid refrigerant will enter the system and
damage the compressor.
Refrigerant will tarnish bright metal and chrome sur-
faces, and in combination with moisture can severely
corrode all metal surfaces. ITEM SPECIFICATION
Heater control assembly Dial type
Compressor 10S17
Compressor Model Swashplate type
Refrigerant and quantity (g) R-134a (HFC-134a), 435
475

AUTO A/C DIAGNOSIS
HEATER, AIR CONDITIONING AND VENTILATION55-71
STEP 2. Check outside/inside air selection damper control
motor connector C-106 for loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Q: Is outside/inside air selection damper control motor
connector C-106 in good condition?
YES : Go to Step 3.
NO : Repair or replace the connector. Refer to GROUP
00E, Harness Connector Inspection P.00E-2. Check
that the outside/inside air selection damper control
motor works normally.
STEP 3. Measure the voltage at outside/inside air selection
damper control motor connector C-106.
(1) Disconnect outside/inside air selection damper control
motor connector C-106, and measure the voltage at the
harness side.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal 1 and ground.
The measured value should be approximately 12 volts
(battery positive voltage).
Q: Does the measured voltage correspond with this range?
YES : Go to Step 5.
NO : Go to Step 4.
STEP 4. Check the wiring harness between outside/inside
air selection damper control motor connector C-106
(terminal 1) and the ignition switch (IG2).

AUTO A/C DIAGNOSIS
HEATER, AIR CONDITIONING AND VENTILATION55-85
STEP 16. Measure the voltage at A/C-ECU connector C-15.
(1) Disconnect A/C-ECU connector C-15 and measure the
voltage at the relay box side.
(2) Disconnect powertrain control module connector B-20 and
ground harness side terminal No.6.
(3) Turn the ignition switch to the "ON" position.
(4) Measure the voltage between A/C-ECU connector C-15
terminal No.10 and ground.
The measured value should be approximately 12 volts
(battery positive voltage).
Q: Does the measured voltage correspond with this range?
YES : Go to Step 18.
NO : Go to Step 17.

AUTO A/C DIAGNOSIS
HEATER, AIR CONDITIONING AND VENTILATION55-98
STEP 12. Check blower power transistor connector C-104
for loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Is power transistor connector C-104 in good condition?
YES : Go to Step 13.
NO : Repair or replace the connector. Refer to GROUP
00E, Harness Connector Inspection P.00E-2.The
blower motor should operate normally.
STEP 13. Measure the resistance at power transistor
connector C-104.
(1) Disconnect power transistor connector C-104, and measure
the resistance at the wiring harness side.
(2) Measure the resistance value between terminal 2 and
ground.
The measured value should be 2 ohms or less.
Q: Does the measured resistance value correspond with
this range?
YES : Go to Step 15.
NO : Go to Step 14.
STEP 14. Check the wiring harness between power
transistor connector C-104 (terminal 2) and ground.
Q: Is the wiring harness between power transistor
connector C-104 (terminal 2) and ground in good
condition?
YES : It can be assumed that this malfunction is intermittent.
Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points
How to
Cope with Intermittent Malfunctions P.00-14.
NO : Repair the wiring harness. The blower motor should
operate normally.

AUTO A/C DIAGNOSIS
HEATER, AIR CONDITIONING AND VENTILATION55-101
STEP 2. Measure the resistance at power transistor
connector C-104.
(1) Disconnect power transistor connector C-104, and measure
the resistance at the wiring harness side.
(2) Measure the resistance value between terminal 2 and
ground.
The measured value should be 2 ohms or less.
Q: Does the measured resistance value correspond with
this range?
YES : Go to Step 4.
NO : Go to Step 3.
STEP 3. Check the wiring harness between power
transistor connector C-104 (terminal 2) and ground.
Q: Is the wiring harness between power transistor
connector C-104 (terminal 2) and ground in good
condition?
YES : The blower motor should operate normally.
NO : Repair the wiring harness. The blower motor should
operate normally.
STEP 4. Check blower motor connector C-115 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is blower motor connector C-115 in good condition?
YES : Go to Step 5.
NO : Repair or replace the connector. Refer to GROUP
00E, Harness Connector Inspection P.00E-2.The
blower motor should operate normally.