Operation CHARM
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Ford Truck
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1982
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E 150 Van V8-302 5.0L
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Repair and Diagnosis
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Starting and Charging
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Charging System
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Testing and Inspection
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Pinpoint Tests
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A: Series With External Voltage Regulator (EVR)
>>
A12 - S Circuit Test
A12 - S Circuit Test
^
Engine at idle.
^
Check for power at S terminal on EVR connector.
^
Is voltage approximately 1/2 of base voltage at
BAT
terminal?
YES --
Replace EVR. Repeat test step A12.
NO --
Go to A13.
A13 - Alternator Stator Voltage Test