How do you measure engine cranking current?

Engine cranking current can be measured using a clamp-on ammeter or a multimeter with a current clamp attachment. First, ensure the vehicle is in a safe state, then connect the ammeter around the positive battery cable or the starter motor cable while cranking the engine. The ammeter will provide a reading of the current drawn during the cranking process, which can help diagnose issues with the battery or starter system. Always follow safety precautions when working with electrical components.