Accessory guideCurrent Clamp

This comprehensive guide teaches motorists and working mechanics how to use a current clamp to measure electrical current without disconnecting or breaking the circuit, covering tool selection, safe connection, step-by-step measurement, and result interpretation. It is written for technicians who already understand basic electrical theory and want to add a reliable, non-invasive diagnostic method to their skill set. You will learn to set up and zero the clamp, take accurate readings on both high and low current circuits, and interpret those readings with worked examples from real diagnostic jobs. By the end, you will be able to confidently diagnose parasitic draws, starter current, alternator output, and fuel pump current, while knowing when a professional scan tool or oscilloscope is required.