Skip to main content
Starter Performance Test

  1. Disconnect the wires 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.

  1. Disconnect the battery from the M terminal. If the pinion does not retract, the hold-in coil of the solenoid is working properly.

  1. Disconnect the battery from the starter body. If the pinion retracts immediately, it is working properly.
  1. Firmly clamp the starter in a vise.
  1. Reconnect the wire to the M terminal.

  1. Connect the starter to the battery as shown, and confirm that the motor runs.
  1. If the electric current meets the specification when the battery voltage is at 11.5 V, the starter is working properly.
    Specification
    Electric Current:
    50 A or less