I might point out that "open" means you have NO circuit. "closed" or shorted would be the more appropriate term for a circuit using current in any quantity.

People often refer to circuits that don't work as possibly having a short. Unless they are on fire the real term for an inoperative circuit would be a possible open.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician