19. STARTER SYSTEM MXU550EXi/MXU500i Starter MAG CONTINUTY INSPECTION Disconnect the starter MAG switch connector and cables. Connect a fully charged 12 V battery positive wire to the relay switch Yellow/Red wire terminal and negative wire to the Yellow/Green wire terminal. There should be continuity between the cable terminals while the battery is connected, and no continuity when the battery is disconnected. 19-5