Glow Plug Relays
There should be no continuity across terminals "C" and "D". With battery voltage applied to terminal "A", and terminal "B" grounded, there should be continuity across terminals "C" and "D". If not, replace relay. See Figure .
There should be no continuity across terminals "C" and "D". With battery voltage applied to terminal "A", and terminal "B" grounded, there should be continuity across terminals "C" and "D". If not, replace relay. See Figure .