Quote:
Originally Posted by Grady
Yes current is a great check but current will be the same throughout the entire circuit. Voltage is what will vary depended on where your issue is. If you battery is bad with high internal resistance when you put a load on the system the battery voltage will drop. If your relay, fuse or wire is bad the voltage will drop after the issue not at the battery.
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No voltage will be the same throughout the circuit. The current will vary with load.