This lesson outlines the logical steps used to troubleshoot DC circuits. • Discuss the general sequence of steps employed when troubleshooting DC circuits • List some potential sources of information about a circuit • Discuss how safety rules and procedures fit into the troubleshooting process • Describe how methodical testing can isolate probable cause of the problem • Use Ohm’s Law to calculate unknown values in a voltage divider circuit • Describe how to use a multimeter to troubleshoot a DC breaker control malfunction
