I have a mid 90's 1840 that started lighting up all the alarms on instrument cluster and fuel LEDs all light up, sometimes it runs for a few minutes then alarms and yesterday it was just warming up and hadn't moved. Thinking I have a ground problem and not sure where to get started. Do not have a manual or wiring diagram. Is there a common wire to look for that may power all the alarms. Any thoughts would be appreciated.
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