Subaru Forester Engine Cooling System 1999 2000 (2) PDF

2. Radiator Main Fan
A: OPERATION
DETECTING CONDITION:
Condition:
Engine coolant temperature is above 95C
(203F).
Vehicle speed is below 19 km/h (12 MPH).
TROUBLE SYMPTOM:
Radiator main fan does not rotate under the
above conditions.
2A1 : 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 fan motor.
3) Start the engine, and warm it up until engine
coolant temperature increases over 95C (203F).
4) Stop the engine and turn ignition switch to ON.
5) Measure voltage between main fan motor con-
nector and chassis ground.
Connector & terminal
(F17) No. 2 (+) ? Chassis ground (?):
H2M1709A
:
Is the voltage more than 10 V?
: Go to step 2A2.
: Go to step 2A5.
2A2 : CHECK GROUND CIRCUIT OF MAIN
FAN MOTOR.
1) Turn ignition switch to OFF.
2) Measure resistance between main fan motor
connector and chassis ground.
Connector & terminal
(F17) No. 1 ? Chassis ground:
H2M1715B
:
Is the resistance less than 5
?
?
: Go to step 2A3.
: Repair open circuit in harness between
main fan motor connector and chassis
ground.
2A3 : CHECK POOR CONTACT.
Check poor contact in main fan motor connector.
<Ref. to FOREWORD [W3C1].>
:
Is there poor contact in main fan
motor connector?
: Repair poor contact in main fan motor
connector.
: Go to step 2A4.
3
[T2A3] 2-5DIAGNOSTICS
2. Radiator Main Fan

Subaru Forester Engine Cooling System 1999 2000 (2) Summary of Content

2. Radiator Main FanA: OPERATIONDETECTING CONDITION:Condition: Engine coolant temperature is above 95C(203F). Vehicle speed is below 19 km/h (12 MPH).TROUBLE SYMPTOM: Radiator main fan does not rotate under theabove conditions.2A1 : CHECK POWER SUPPLY TO MAINFAN MOTOR.CAUTION:Be careful not to overheat engine during repair.1) Turn ignition switch to OFF.2) Disconnect connector from main fan motor.3) Start the engine, and warm it up until enginecoolant temperature increases over 95C (203F).4) Stop the engine and turn ignition switch to ON.5) Measure voltage between main fan motor con-nector and chassis ground.Connector terminal(F17) No. 2 (+) Chassis ground ():H2M1709A:Is the voltage more than 10 V?: Go to step 2A2.: Go to step 2A5.2A2 : CHECK GROUND CIRCUIT OF MAINFAN MOTOR.1) Turn ignition switch to OFF.2) Measure resistance between main fan motorconnector and chassis ground.Connector terminal(F17) No. 1 Chassis ground:H2M1715B:Is the resistance less than 5?: Go to step 2A3.: Repair open circuit in harness betweenmain fan motor connector and chassisground.2A3 : CHECK POOR CONTACT.Check poor contact in main fan motor connector.Ref. to FOREWORD [W3C1].:Is there poor contact in main fanmotor connector?: Repair poor contact in main fan motorconnector.: Go to step 2A4.3[T2A3] 2-5DIAGNOSTICS2. Radiator Main Fan