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Home >> Ford >> 1989 >> Probe GL, Automatic >> Repair and Diagnosis >> Engine Mechanical >> Engine Cooling Fan >> Testing >> Test 16, Fan Relay Power Check
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Test 16, Fan Relay Power Check

Turn key on. Remove cooling fan relay No. 2. Using a voltmeter, check voltage between Blue/Black and Green/White terminals. If both readings are more than 10 volts, repair Black/Green wire from relay to cooling fan switch. If reading at Green/White wire is less than 10 volts, repair Green/White wire from cooling fan relay to ignition relay. If reading at Blue/Black wire is less than 10 volts, repair Blue/Black wire from cooling fan relay to cooling fan motor.