Mitsubishi Outlander (2003+). Manual — part 527

GENERAL INFORMATION

HEATER, AIR CONDITIONER AND VENTILATION

55A-3

GENERAL INFORMATION

M1552000100403

The heater and air conditioner system incorporating
the heater and cooling units has reduced ventilation
resistance to increase air volume and reduce noise.
The manual air conditioner is installed for
LHD-Comfort model.

GENERAL SPECIFICATION

SERVICE SPECIFICATIONS

M1552000300399

LUBRICANTS

M1552000400363

Item

Specification

Heater unit type

Two-layer full blow air mix method

Heater control type

Rotary type

Air conditioner switch type

Push button type

Compressor type

Standard type

MSC90CA

Large capacity type

MSC105CA

Cooling output

5.5 kW

Heating output

5.0 kW

Item

Standard value

Idle speed r/min

2000

750

±

50

2400

700

±

50

Idle-up speed r/min

850

±

50

Resistor (for blower motor)

Ω

LO

2.54

ML

1.24

MH

0.6

Air gap (magnetic clutch) mm

0.3

−

0.5

Item

Specified lubricant

Quantity

Compressor refrigerant unit lubricant

MSC105CA

SUN PAG 56

140 mL

MSC90CA

SUN PAG 56

120 mL

Each connection of refrigerant line

SUN PAG 56

As required

Refrigerant

R134a (HFC-134a)

550

±

20 g

SPECIAL TOOLS

HEATER, AIR CONDITIONER AND VENTILATION

55A-4

SPECIAL TOOLS

M1552000600301

TROUBLESHOOTING

DIAGNOSIS TROUBLESHOOTING FLOW

M1552009600353

Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points

P.00-6

.

SYMPTOM CHART

M1552009900439

NOTE: Refer to GROUP 14, Trouble shooting for the
condenser fan.

Tool

Tool number

Name

Application

MB991367

Special spanner

Armature mounting nut of
compressor removal and
installation

MB991386

Pin

MB991223
A:MB991219
B:MB991220
C:MB991221
D:MB991222

Harness set
A: Test harness
B: LED harness
C: LED harness adapter
D: Probe

Continuity check and voltage
measurement at harness wire or
connector
A: For checking connector pin
contact pressure
B: For checking power supply
circuit
C: For checking power supply
circuit
D: For connecting a locally
sourced tester

B991367

MB991223

A

B

C

D

AC

Symptom

Inspection
Procedure

Reference
Page

When the ignition switch is "ON" the A/C does not operate.

1

P.55A-5

Inside/outside air selection is not possible.

2

P.55A-6

When the A/C is operating, temperature inside the passenger
compartment does not decrease (cool air is not emitted).

3

P.55A-10

Blower fan and motor do not turn.

4

P.55A-29

Blower air amount cannot be changed.

5

P.55A-36

The A/C indicator flashes.

6

P.55A-39

Defogger function does not operate.

7

P.55A-40

TROUBLESHOOTING

HEATER, AIR CONDITIONER AND VENTILATION

55A-5

SYMPTOM PROCEDURES

INSPECTION PROCEDURE 1: When the Ignition Switch is "ON" the A/C does not Operate.

COMMENTS ON TROUBLE SYMPTOM
The blower system or the compressor system may
be defective if there is no cool air coming from the
spit hole.

TROUBLESHOOTING HINTS

•

Malfunction of blower motor

•

Malfunction of A/C compressor

DIAGNOSIS

Check that the blower motor operation when the
blower switch is moved to the "HI" position.
(1) Turn the ignition switch to the "ON" position.
(2) Turn the blower switch to the "HI" position.

Q: Does the blower motor operate when the blower

switch is moved to the "HI" position?
YES :

Refer to Inspection procedure 3 "When the

A/C is operating, temperature inside the
passenger compartment does not decrease
(cool air not emitted)

P.55A-10

."

NO :

Refer to Inspection procedure 4 "Blower fan
and motor do not turn

P.55A-29

."

Defogger Timer function does not operate.

8

P.55A-46

Malfunction of the A/C-ECU power supply system.

9

P.55A-47

Condenser Fan does not operate.

10

Refer to
GROUP 14

P.14-3

Symptom

Inspection
Procedure

Reference
Page

TROUBLESHOOTING

HEATER, AIR CONDITIONER AND VENTILATION

55A-6

INSPECTION PROCEDURE 2: Outside/Inside Air Selection is not possible.

COMMENTS ON TROUBLE SYMPTOM
If the outside/inside air selection damper motor does
not operate normally, the outside/inside air selection
damper motor system may be defective.

TROUBLESHOOTING HINTS

•

Malfunction of the outside/inside air selection
damper motor

•

Damaged the wiring harness or connectors

•

Malfunction of the manual air conditioner control
panel (A/C-ECU)

DIAGNOSIS

STEP 1. Check the defogger and A/C operations.

Q: Do the defogger and A/C work normally?

YES :

Go to Step 2.

NO :

Refer to Inspection procedure 9
"Malfunction of the A/C-ECU power supply
system

P.55A-47

."

STEP 2. Measure the voltage at the C-311
outside/inside air selection damper control motor
connector.

(1) Disconnect the connector, and measure at the

wiring harness side.

IGNITION
SWITCH (IG2)

OUTSIDE/INSIDE
AIR SELECTION
DAMPER CONTROL MOTOR

A/C-ECU

Wire colour code
B : Black LG : Light green G : Green L : Blue
W : White Y : Yellow SB : Sky blue BR : Brown
O : Orange GR : Gray R : Red P : Pink V : Violet

Outside/Inside Air Selection Damper Control Motor Circit

AC308739

Connector: C-311

Harness side

AI

6

2

7

3

5 4

1