Glow Plug Relays
On I-Mark models, 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 "C" and "D". If not, replace relay. See Fig 1 .
On I-Mark models, 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 "C" and "D". If not, replace relay. See Fig 1 .