Mitsubishi Outlander (2003+). Manual — part 528
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55A-7
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal 7 and
body earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Go to Step 3.
STEP 3. Connector check: C-311 outside/inside
air selection damper control motor connector
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Repair the connector.
AC301541
6
2
7
3
5 4
1
BT
Connector C-311
(Harness side)
AC308739
Connector: C-311
Harness side
AI
6
2
7
3
5 4
1
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55A-8
STEP 4. Check the wiring harness between C-311
outside/inside air selection damper control motor
connector terminal No.7 and the ignition switch
(IG2).
NOTE:
Prior to the wiring harness inspection, check interme-
diate connector C-10, junction block connectors
C-205 and C-203, and repair if necessary.
•
Check the outside/inside air selection damper
control motor power supply line for open circuit.
Q: Is the check result normal?
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00, How to
Cope with Intermittent Malfunction
NO :
Repair the wiring harness.
STEP 5. Check the outside/inside air selection
damper control motor
Refer to
Q: Does outside/inside air selection damper control
motor work normally?
YES :
Go to Step 6.
NO :
Replace the outside/inside air selection
damper control motor.
STEP 6. Connector check: C-311 outside/inside
air selection damper control motor connector
and C-06 A/C-ECU
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair the connector.
AC308739
Connector: C-311
Harness side
AI
6
2
7
3
5 4
1
AC301397
Connector: C-10
AM
4
3
5 6
1
7
2
AC210475
Connectors: C-203, C-205
AR
Junction Block (Front View)
C-205
C-203
Harness side
C-203
C-205
4
6 5
3
2
1
21
7
16 15
17
18
20 19
1
2
3
4
5
6
23 22
24
25
28
26
27
9
8
10
11
14
12
13
AC308739
Connector: C-311
Harness side
AI
6
2
7
3
5 4
1
AC301397
Connector: C-06
AN
9
1
15
7
4
12 1110
2
3
13
5
14
6
16
8
C-06(B)
Harness side
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55A-9
STEP 7. Check the wiring harness between C-311
outside/inside air selection damper control motor
connector (terminals 6 and 4) and A/C-ECU C-06
(terminals 2 and 3).
NOTE: Prior to the wiring harness inspection, check
intermediate connector C-10, and repair if necessary.
•
Check the outside/indside air selection damper
control motor earth line for open or short circuit.
Q: Is the check result normal?
YES :
Replace the manual air conditioner control
panel (A/C-ECU).
NO :
Repair the wiring harness.
AC308739
Connector: C-311
Harness side
AI
6
2
7
3
5 4
1
AC301398
Connectors: C-06, C-10
4
3
5 6
1
7
2
BD
9
1
15
7
4
12 1110
2
3
13
5
14
6
16
8
C-06(B)
Harness side
C-10
C-06
C-10
TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55A-10
INSPECTION PROCEDURE 3: When the A/C is Operating, Temperature Inside the Passenger
Compartment does not Decrease (Cool Air is not Emitted).
COMMENTS ON TROUBLE SYMPTOM
If cool air is not distributed when the A/C switch is on,
the air thermo sensor or the A/C compressor relay
system may be defective.
TROUBLESHOOTING HINTS
•
Improper amount of refrigerant
•
Malfunction of the air thermo sensor
•
Malfunction of the A/C pressure sensor
•
Malfunction of the A/C compressor relay
•
Malfunction of the A/C refrigerant temperature
switch
NOTE
: 4G63
: 4G69
BATTERY
A/C COMPRESSOR
RELAY
ENGINE-
ECU
A/C
COMPRESSOR
ASSEMBLY
AIR THERMO
SENSOR
AIR THERMO
SENSOR
A/C
REFRIGERANT
TEMPERATURE
SWITCH
MAGNETIC
CLUTCH
A/C-ECU
A/C
PRESSURE
SENSOR
(OUTLET SIDE)
(INLET SIDE)
RESISTOR
IGNITION
SWITCH (IG2)
RELAY
BOX
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
A/C Compressor and Air Thermo Sensor Circuit
2400
2000
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