Circuit Breaker Test
- Pull out 20-amp circuit breaker No. 18 from junction block, but DO NOT remove. Ensure circuit breaker terminals remain in contact with terminals in junction block. Connect negative voltmeter lead to a good ground.
- Using positive voltmeter lead, check for battery voltage at both terminals of circuit breaker. If there is voltage at only one terminal, replace circuit breaker. If battery voltage is not present at both terminals, repair open or shorted circuit to circuit breaker.