Page 2 Testing for Voltage Drop This test checks for voltage being lost along a wire, or through a connection or switch. See Figure 2. 1. Connect the positive lead of a Related searches for thomas bus wiring schematics 1999 thomas built bus wiring schematicsthomas built buses wiring diagramthomas c2 wiring diagramthomas bus wiring diagramthomas freightliner school bus schematic2004 thomas bus wiring diagramthomas built bus manuals pdfthomas built bus electrical diagrams