| 1. | Disconnect the wires from the S terminal and the M terminal. |
| 2. | Make the connections as described below using as heavy a wire as possible (preferably equivalent to the wire used for the vehicle). To avoid damaging the starter, never leave the battery connected for more than 10 seconds. |
| 3. | Connect the battery as shown. If the starter pinion moves out, it is working properly.
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| 4. | Disconnect the battery from the M terminal. If the pinion does not retract, the hold-in coil of the solenoid is working properly.
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| 5. | Disconnect the battery from the starter body. If the pinion retracts immediately, it is working properly.
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| 6. | Clamp the starter firmly in a vise. |
| 7. | Connect the starter to the battery as described in the diagram below, and confirm that the motor starts and keeps rotating.
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| 8. | If the electric current and motor speed meet the specifications when the battery voltage is at 11.5 V, the starter is working properly.
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