Forester, Impreza & Legacy
- Models with A/C have 2 cooling fans. Models without A/C have one cooling fan. On all models, radiator (main) fan operates when coolant temperature is more than 203°F (95°C) and vehicle speed is less than 12 MPH.
- On Forester and Impreza with A/C, condenser (sub) fan operates under the following conditions: A/C is turned on and vehicle speed is less than 12 MPH. A/C is turned off and coolant temperature is more than 212°F (100°C).
- Power for main fan motor is supplied from main fan relay. Power for sub fan relay is supplied from sub fan relay. Relays are located in underhood fuse/relay box. Power for relays is supplied through 20-amp fuses in underhood fuse/relay box. Power for relay coils is supplied through fuses No. 17 and 18 located in passenger compartment fuse box. Ground circuits for relay coils are switched by PCM.
- Legacy with A/C is equipped with 2-speed fans. Both main fan and sub fan operate at low-speed under the following conditions: Coolant temperature is less than 192°F (89°C), A/C is turned on, and vehicle speed is less than 6 MPH. Coolant temperature is more than 203°F (95°C), A/C is turned off, and vehicle speed is less than 6 MPH.
- Power for low-speed main fan operation is supplied from MAIN FAN RELAY 1. Power for low-speed sub fan operation is supplied from SUB FAN RELAY 1.
- Both main fan and sub fan operate at high-speed under the following conditions: Coolant temperature is more than 203°F (95°C) and A/C is turned on. Coolant temperature is more than 203°F (95°C), A/C is turned off, and vehicle speed is more than 12 MPH. Coolant temperature is less than 192°F (89°C), A/C is turned on, and vehicle speed is more than 12 MPH.
- Power for high-speed main fan operation is supplied from MAIN FAN RELAY 2. Power for high-speed sub fan operation is supplied from SUB FAN RELAY 2.
SVX
Note. Cooling fan information for SVX is not available from manufacturer.
Fan Motor (Legacy)
- Unplug fan motor wiring connector. Using fused jumper wires, connect battery voltage to fan motor harness connector terminal No. 2. (Scheme 3) See «WIRING DIAGRAMS»(ref-125984-S42597157992001101600000). Connect fan motor harness connector terminal No. 1 to ground. Fan motor should operate at low speed.
- Connect an additional jumper wire from battery voltage to fan motor harness connector terminal No. 3. Fan motor should operate at high speed. Replace radiator (main) fan motor if operation is not as specified.
Fan Motor (Forester & Impreza)
Unplug fan motor wiring connector. Using fused jumper wires, connect battery voltage and ground to fan motor wire connector terminals. See WIRING DIAGRAMS . Fan motor should operate. Replace fan motor if it does not operate.
Scheme 3
Relays
Remove relay in question. Check continuity between terminals No. 1 and 3. (Scheme 4) See WIRING DIAGRAMS. Continuity should exist. Check continuity between terminals No. 2 and 4. Continuity should not exist. Connect battery voltage to terminal No. 1, and ground terminal No. 3. Continuity should now exist between terminals No. 2 and 4. Replace relay if continuity is not as specified.
Scheme 4
| Model | Specification | ||
|---|---|---|---|
| Coolant Replacement Interval | 30,000 Miles Or 30 Months | ||
| Coolant Capacity (Includes Heater & Reserve Tank) | |||
| Forester | 6.3 Qts. (6.0L) | ||
| Impreza | |||
| 1.8L | 6.6 Qts. (6.2L) | ||
| 2.2L | 6.1 Qts. (5.8L) | ||
| Legacy | |||
| 2.2L | 6.1 Qts. (5.8L) | ||
| 2.5L | 6.3 Qts. (6.0L) | ||
| SVX | 7.4 Qts. (7.0L) | ||
| Pressure Cap | 11-14 psi | ||
| Thermostat Starts To Open | 169-176°F (84-87°C) | ||
| Thermostat Fully Open | 196°F (91°C) | ||
COOLING SYSTEM SPECIFICATIONS
