N14 Base Engine Troubleshooting and Repair Manual – 013-017   Starter Magnetic Switch

WARNING  Be sure the starter switch is in the “OFF” position to prevent electrical shock.

Remove the cable connecting the magnetic switch to the starter solenoid from the magnetic switch terminal.

Connect the leads of the digital multimeter, Part No. 3377161, to the two large switch terminals.

Set the multimeter to measure resistance (OHMS).

With the starter switch off, the multimeter

must
indicate resistance at infinity, open circuit.

Turn the starter switch to the “START” position.

The multimeter

must
indicate zero (0) resistance, closed circuit.

If the multimeter indicates resistance at infinity with the starter switch in the “START” position:

• Turn the starter switch off
• Remove the ground wire which is connected to one of the small magnetic switch terminals

• Set the multimeter scale to indicate volts, 24 volts or more.
• Connect the positive lead of the multimeter to the magnetic switch ground terminal and the other lead to the ground wire
• Turn the starter switch to the “START” position
• The multimeter

  must
  indicate vehicle electrical system voltage.

• If the multimeter does

  not
  indicate voltage, refer to “Starter Switch – Check” in this section

• Turn the starter switch to the “OFF” position
• Remove the multimeter leads
• Connect the starter solenoid cable to the magnetic switch terminal, and the ground wire to its corresponding terminal on the magnetic switch