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Home >> Plymouth >> 1978 >> Horizon Automatic Trans >> Repair and Diagnosis >> Electrical >> Starters - BOSCH & NIPPONDENSO >> Testing >> Starter Resistance Test

Starter Resistance Test

  1. Make sure battery is at full charge. Disconnect positive battery cable at battery. Connect an ammeter (0 to 300 scale) between disconnected lead and battery terminal.
  2. Connect a 10 scale voltmeter between positive battery post and starter switch terminal at solenoid.
  3. Crank engine over and check reading on voltmeter and ammeter. Voltage reading should not exceed 0.3 volt.
  4. A reading higher than this indicates a high resistance caused by loose circuit connections, defective cable, burned starter relay or solenoid switch contacts.
  5. If current is high and starter cranks slow, starter is defective.
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