Mitsubishi MOTORS Lancer 2004, Руководство по ремонту

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TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION
55-21
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 dual pressure switch
•
Malfunction of the A/C compressor relay
•
Malfunction of the A/C refrigerant temperature
switch
•
Malfunction of the magnetic clutch
•
Malfunction of the manual air conditioner control
panel (A/C-ECU)
•
Damaged the wiring harness or connectors
•
Malfunction of the engine-ECU <M/T> or the
engine-A/T-ECU <A/T>
DIAGNOSIS
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 <R.H.D.>
P.55-56 ."
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 "Blower fan
and motor do not turn
P.55-29 ."
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. Connector check: B-114 A/C compressor
connector and C-123 engine-ECU connector
<M/T> or C-122 engine-A/T-ECU connector <A/T>
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Repair the connector.
AC303786
Connector: B-114
<4G1-R.H.D.>
AB
Harness side
B-114 (B)
AC303794
Connector: B-114
<4G6-R.H.D.>
AB
Harness side
B-114 (B)
AC303817
Connectors: C-122 <A/T>, C-123 <M/T>
AF
<R.H.D.>
C-122
C-122 (GR)
C-123 (Y)
C-123
Harness side