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Voltage Drop Test

NOTE: Make all voltmeter connections at component terminal rather than at cable or wire end.
  1. Disconnect inertia fuel shutoff switch to prevent vehicle from starting. Connect remote starter switch between starter solenoid terminal "S" and positive battery post.
  2. Connect positive voltmeter lead to positive battery post, and negative lead to solenoid terminal "M". See Fig 1 .
    Fig 1: Testing Voltage Drop
    G95B12519Courtesy of FORD MOTOR CO.
  3. Engage remote starter switch. Voltmeter should indicate .5 volt or less. If voltmeter indicates .5 volt or less, go to STARTER GROUND CIRCUIT TEST. If voltmeter indicates more than .5 volt, go to next step.
  4. Move negative voltmeter lead to solenoid terminal "B". Engage remote starter switch. If voltmeter indicates less than .5 volt, solenoid connections or contacts are bad. Clean solenoid terminals "B", "S" and "M". Repeat steps 1) through 4).
  5. If voltmeter still indicates more than .5 volt at terminal "M" and less than .5 volt at terminal "B", solenoid contacts are bad. Replace solenoid. If voltmeter indicates more than .5 volt at terminal "B", clean cables and connections at solenoid.
  6. If voltmeter still indicates more than .5 volt at terminal "B", check for poor positive battery cable connection or bad cable. Repair as necessary.
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