Resistance reading

This picture is the connection for reading the forward resistance of the diode. In this case 2.93 Meg ohms.

It may seam to be wrong and counter-intuitive, but remember where the supply voltage is coming from.

The battery or source voltage is always connected to the arrow end, not the bar or band end. The band end goes to the item needing power. whatever it might be. A light,solenoid alternator or relay.