27-03-2019, 09:13 AM
I would expect that one side of the ammeter connects directly to the battery. The other side feeds components on the car. Thus the measuring the resistance between each ammeter wire and the batter cables should reveal which is which.
Both the battery and ammeter should be disconnected while measuring resistance.
The feed side is battery positive if negative earth and vice versa.
Both the battery and ammeter should be disconnected while measuring resistance.
The feed side is battery positive if negative earth and vice versa.
Jim