Be sure the starter switch is in the OFF position to prevent electrical shock.
Remove the wire connecting the starter switch to the magnetic switch from the starter switch terminal.
Connect the positive (+) lead of digital multimeter, Part Number 3377161, to the starter switch terminal and the negative (-) lead to the chassis or an engine ground location.
With the starter switch in the OFF position, there must not be a voltage reading. If the meter indicates a voltage, the starter switch is malfunctioning and must be replaced.
Check the cable from the positive (+) voltage terminal of the starter solenoid to the starter switch for breaks. Also, check for loose or corroded connections.
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