2005 MITSUBISHI 380 oil

BRAKE WARNING LAMP, OIL PRESSURE WARNING LAMP, FUEL WARNING LAMP
CIRCUIT DIAGRAMS90-60
BRAKE WARNING LAMP, OIL PRESSURE WARNING LAMP,
FUEL WARNING LAMP
M1901011800848

BRAKE WARNING LAMP, OIL PRESSURE WARNING LAMP, FUEL WARNING LAMP
CIRCUIT DIAGRAMS90-61

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 VENTILATION55-76
MB991824: Vehicle Communication Interface (V.C.I.)
MB991827: MUT-III USB Cable
MB991910: MUT-III Main Harness A (Vehicles with CAN
communication system)
STEP 1. Check the defogger and outside/inside air
selection damper control motor operation.
Q: Do the defogger and outside/inside air selection damper
control motor work normally?
YES : Go to Step 2.
NO : Refer to Inspection procedure 10, "Malfunction of the
A/C-ECU power supply system P.55-122."
STEP 2. Check the blower motor operation.
Q: Does the blower motor work normally?
YES : Go to Step 3.
NO : Refer to Inspection procedure 5, "Front blower fan
and motor do not turn P.55-89."
STEP 3. Check the A/C compressor.
Check the A/C compressor for compressor oil leaks.
Q: Is the check result satisfactory?
YES : Go to Step 4.
NO : Replace the A/C compressor or the expansion valve.
STEP 4. Using scan tool , read the A/C diagnostic trouble
code.
Check if an A/C-ECU DTC is set.
(1) Connect scan tool to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Check if the DTC is set.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the check result satisfactory?
YES : Go to Step 5.
NO : Refer to DIAGNOSTIC TROUBLE CODE CHART
P.55-9.

AUTO A/C DIAGNOSIS
HEATER, AIR CONDITIONING AND VENTILATION55-112
STEP 4. Check choke coil connector D-11 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is choke coil connector D-11 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
defogger system should work normally.

AUTO A/C DIAGNOSIS
HEATER, AIR CONDITIONING AND VENTILATION55-113
STEP 5.Measure the voltage at choke coil connector D-11.
(1) Disconnect connector D-11, and measure the voltage at the
harness side.
(2) Disconnect A/C-ECU connector C-15 and ground harness
side terminal No.27.
(3) Turn the ignition switch to the "ON" position.
(4) Measure the voltage between choke coil connector D-11
terminal No.1 and ground.
The measured value should be approximately 12 volts.
Q: Is the measured voltage approx. 12 volts?
YES : Go to Step 13.
NO : Go to Step 6.

AUTO A/C DIAGNOSIS
HEATER, AIR CONDITIONING AND VENTILATION55-119
STEP 12. Check the wiring harness between defogger
relay connector C-201 (terminal 4) and choke coil
connector D-11 (terminal 1).
NOTE: Also check junction block connector C-204 for loose,
corroded, or damaged terminals, or terminals pushed back in
the connector. If junction block connector C-204 is damaged,
repair or replace the connector as described in GROUP 00E,
Harness Connector Inspection P.00E-2.
Q: Is the wiring harness between defogger relay connector
C-201 (terminal 4) and choke coil connector D-11
(terminal 1) 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 or replace the wiring harness. Refer to
GROUP 00E, Harness Connector Inspection
P.00E-2. Check that the defogger system works
normally.
STEP 13. Check choke coil connector D-11 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is choke coil connector D-11 in good condition?
YES : Go to Step 14.
NO : Repair or replace the connector. Refer to GROUP
00E, Harness Connector Inspection P.00E-2. Check
that the defogger system works normally.

AUTO A/C DIAGNOSIS
HEATER, AIR CONDITIONING AND VENTILATION55-120
STEP 14. Check the wiring harness between choke coil
connector D-11 (terminal 1) and rear glass solder joint.
Q: Is the wiring harness between choke coil connector
D-11 (terminal 1) and rear glass solder joint in good
condition?
YES : Go to Step 15.
NO : Repair or replace the wiring harness. Refer to
GROUP 00E, Harness Connector Inspection
P.00E-2. Check that the defogger system works
normally.
STEP 15. Check rear glass solder joints for loose,
corroded or damaged joints.
Q: Are solder joints in good condition?
YES : Go to Step 16.
NO : Repair solder joint. Check that the defogger system
works normally.
STEP 16. Check the wiring harness between RH rear glass
solder joint and earth point.
Q: Is the wiring harness between RH rear glass solder joint
and earth point in good condition?
YES : Go to Step 17.
NO : Repair or replace the wiring harness or repair solder
joint. . Check that the defogger system works
normally.