Certainly! Here's a step-by-step guide on how to use a circuit tester:

1. Familiarize yourself with the tool by doing a simple test of the battery. Connect the circuit tester ground clamp to the negative terminal of the vehicle battery. Now touch the probe tip of the circuit tester to the positive battery terminal. The light in the circuit tester handle should illuminate .

2. Insert the tester into the receptacle until it is fully seated. The tester should illuminate immediately with any combination of its three lights .

3. Check the tester. If one yellow light in the middle of the three is illuminated, this indicates that there is an open or disconnected ground in the circuit .

4. Separate the wires from the switch or open the outlet/electric socket/electric switch with a screwdriver. After opening the outlet you’ll be able to see the wires. Separate the wires very carefully .