SUBARU LEGACY 1997 Service Repair Manual

Condition Probable cause Corrective action
FAULTY CONDENSER
G4M0680
No cooling action;
Engine may overheat.
Suction line is very hot.Condenser is often
found not functioning
well.Check condenser
cooling fan.
Check condenser for
dirt accumulation.
Check engine cooling
system for overheat.
Check for refrigerant
overcharge.
If pressure remains
high in spite of all
above actions taken,
remove and inspect
the condenser for pos-
sible oil clogging.
HIGH-PRESSURE LINE BLOCKED
G4M0681
Insufficient cooling;
Frosted high-pressure
liquid line.Drier is clogged, or
restriction in high-pres-
sure line.1. Discharge system.
2. Remove receiver
drier or strainer and
replace it.
3. Evacuate and charge
system.
FAULTY COMPRESSOR
G4M0682
Insufficient cooling Internal problem is in
compressor, or dam-
aged gasket and valve.1. Discharge system.
2. Remove and check
compressor.
3. Repair or replace
compressor.
4. Check oil level.
5. Replace receiver
drier.
6. Evacuate and charge
system.
44
4-7DIAGNOSTICS
2. Performance Test Diagnosis

3. Blower Motor Diagnosis
45
4-7DIAGNOSTICS
3. Blower Motor Diagnosis

4. Compressor Diagnosis
46
4-7DIAGNOSTICS
4. Compressor Diagnosis

5. Compressor Clutch Diagnosis
EPA0110
47
4-7DIAGNOSTICS
5. Compressor Clutch Diagnosis

EPA0111
48
4-7DIAGNOSTICS
5. Compressor Clutch Diagnosis

6. Radiator Fan (Main Fan) Diagnosis
EPA0048
49
4-7DIAGNOSTICS
6. Radiator Fan (Main Fan) Diagnosis

7. Condenser Fan (Sub Fan)
Diagnosis (I)
50
4-7DIAGNOSTICS
7. Condenser Fan (Sub Fan) Diagnosis (I)

8. Condenser Fan (Sub Fan)
Diagnosis (II)
51
4-7DIAGNOSTICS
8. Condenser Fan (Sub Fan) Diagnosis (II)

1. Supplemental Restraint System
“Airbag”
Airbag system wiring harness is routed on and along body
panels.
CAUTION:

All Airbag system wiring harness and connectors
are colored yellow. Do not use electrical test equip-
ment on these circuits.

Be careful not to damage Airbag system wiring har-
ness when repairing the body panel.
2. Body Datum Points
Various master repair locations are established as datum
points used during body repairs. In addition, guide holes,
locators and indents are provided to facilitate panel
replacement and achieve alignment accuracy.
NOTE:
Left and right datum points are all symmetrical to each
other.
2
5-1SERVICE DATA
1. Supplemental Restraint System“Airbag”- 2. Body Datum Points

1. Supplemental Restraint System
“Airbag”
Airbag system wiring harness is routed on and along body
panels.
CAUTION:

All Airbag system wiring harness and connectors
are colored yellow. Do not use electrical test equip-
ment on these circuits.

Be careful not to damage Airbag system wiring har-
ness when repairing the body panel.
2. Body Datum Points
Various master repair locations are established as datum
points used during body repairs. In addition, guide holes,
locators and indents are provided to facilitate panel
replacement and achieve alignment accuracy.
NOTE:
Left and right datum points are all symmetrical to each
other.
2
5-1SERVICE DATA
1. Supplemental Restraint System“Airbag”- 2. Body Datum Points