Bombardier SeaDoo 1998 factory shop manual, Page 260Get this manual
Subsection 05
Section 08 ELECTRICAL SYSTEM (INSTRUMENTS AND ACCESSORIES)
VTS Switch
SPX, GSX Limited and XP Limited Always confirm first that the fuse is in good conditionDisconnect BLACK wire, BLUEWHITE wire and GREENWHITE wire of VTS switchUsing multimeter, connect test probes to switch BLACK and BLUEWHITE wires; then, connect test probes to switch BLACK and GREENWHITE wiresMeasure resistance; in both test it should be high when button is released and must be close to zero when activated