Starter Performance Test
  1. Remove the starter.
  1. Disconnect the wire from the M terminal.
  1. Make a connection for this test using the thickest (gauge) wire possible (preferably the same gauge as used on the vehicle).
    NOTE: To avoid damaging the starter, never leave the battery connected for more than 10 seconds.
  1. Connect the battery as shown. Make sure you disconnect the starter motor wire from the solenoid. If the starter pinion moves out, it is working properly.