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Starter Ground Circuit Test

NOTE: Make all voltmeter connections at component terminal rather than at cable or wire end.
  1. Disconnect inertia fuel shutoff switch connector located behind right side of instrument panel. Connect remote starter switch between starter solenoid terminal "S" and positive battery post. Using a voltmeter, connect positive voltmeter lead to starter housing, and negative lead to negative battery post. See Fig 1 . Engage remote starter switch while observing voltmeter. If voltage is greater than .2 volt, leave test equipment attached and go to next step. If voltage is .2 volt or less, starter ground circuit is okay at this time.
  2. Clean negative cable connections at battery and chassis. Engage remote starter switch while observing voltmeter. If voltage is greater than .2 volt, leave test equipment attached and go to next step. If voltage is .2 volt or less, starter ground circuit is okay at this time.
  3. Connect voltmeter between negative battery post and engine ground where negative battery cable connects. Engage remote starter switch while observing voltmeter. If voltage is greater than .2 volt, replace negative battery cable. If voltage is .2 volt or less, replace starter motor. See STARTER MOTOR  under REMOVAL & INSTALLATION.
    Fig 1: Testing Ground Circuit
    G98B12279Courtesy of FORD MOTOR CO.