Legacy GT LTD Sedan AWD F4-2.5L DOHC (1998)
![background image](/subaru/legacy_gt_ltd_sedan_awd/f4-2.5l_dohc/Page-512001.png)
Radiator Cooling Fan Motor: Testing and Inspection
Radiator Main Fan Hi Mode With AC
C: HI MODE OPERATION (WITH A/C MODEL)
DETECTING CONDITION:
Condition (1):
-
Engine coolant temperature is below 89°C (192°F).
-
A/C switch is turned ON.
Vehicle speed is over 20 km/h (12 MPH).
Condition (2):
-
Engine coolant temperature is above 95°C (203° F).
-
A/C switch is turned OFF.
-
Vehicle speed is over 20 km/h (12 MPH).
Condition (3):
-
Engine coolant temperature is above 95°C (203° F).
-
A/C switch is turned ON.
TROUBLE SYMPTOM:
-
Radiator main fan does not rotate at HI speed.
1) Start the engine, and warm-up it until engine coolant temperature increases over 95°C (203°F).
2) Stop the engine and turn ignition switch to ON.
3) Turn A/C switch to OFF.
(CHECK) Does the main fan operate at LO MODE?
(YES) Go to step 1C2.
(NO) Go to LO MODE OPERATION diagnostics chart. See: Radiator Main Fan LO Mode with AC
1C2: CHECK POWER SUPPLY TO MAIN FAN MOTOR.
CAUTION: Be careful not to overheat engine during repair.
1) Turn ignition switch to OFF.
2) Disconnect connector from main tan motor.
3) Warm-up the engine until engine coolant temperature increases over 95°C (203°F).
4) Stop the engine and turn ignition switch to ON.
5) Turn A/C switch to ON.
6) Measure voltage between main fan motor connector and chassis ground.
Connector & terminal
(F17) No.3 (+) - Chassis ground (-):
(CHECK) Is voltage more than 10 V?
(YES) Go to step 1C3.
(NO) Go to step 1C4.
1C3: CHECK MAIN FAN MOTOR.
1) Turn ignition switch and A/C switch to OFF.
2) Connect battery positive (+) terminal to terminals No.2 and No.3 of main fan motor connector, and negative (-) terminal to terminal No.1.