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Starter Ground Circuit Test

NOTE: Make all DVOM connections at component terminal rather than at cable or wire end.
  1. Disconnect inertia fuel shutoff switch harness connector. Inertia fuel shutoff switch is located behind right side of instrument panel. See Figure. Connect remote starter switch between starter solenoid terminal "S" and positive battery post. Using DVOM, connect Red lead to starter housing, and Black lead to negative battery post. See Fig 1. Engage remote starter switch while observing DVOM. If voltage is more 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 DVOM. If voltage is more 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 DVOM between negative battery post and engine ground where negative battery cable connects. Engage remote starter switch while observing DVOM. If voltage is more 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.