Consider the example wire harness and test fixture shown here: This wire harness consists of 3 connectors: A: 5-pin, B: 4-pin, C: 1-pin Each connector mates with an associated test fixture block – shown here in gray color. The connection points are shown in bold in this diagram. Each point of connection between a fixture block pin and a harness wire is a connection point. The splice designated as 1 is a connection point. Also, each terminal of the resistor designated R1 is a connection point.