I am into a project to find the current through the diode D1, and coil as in figure. It is a sealed relay with the diodes and coils inside. Only terminations are available for the measurement. Please help.
Put a small resistor in series with termination2, and then measure the differential voltage across the resistor. Isn't that voltage proportional to the current through the resistor? If you do not think so, go study Ohm's law some more...