Which of the following is NOT one of the three rules of circuit tracing?

Using a multimeter for testing is not one of the primary rules of circuit tracing. Circuit tracing typically involves understanding the flow of electricity through a system, identifying each component involved, and referencing technical documents to follow the path of the circuit accurately.

This process focuses more on mapping out the connections and relationships between various elements within the circuit rather than actively testing the circuit's functionality with devices like a multimeter. While testing with a multimeter can be a helpful tool in diagnosing issues, it does not align with the fundamental rules for tracing the circuit itself, which are centered around identification and referencing. The other options directly relate to the basic principles of following and understanding the circuit's layout.