I am looking for anyone with the schematics for the glow plug controller.
Mine seems to have gone out after sitting for about six weeks.
I know the plugs are fine. Each one ohms out within .2ohms of each other.
Also the current draw of each starts around 20A and quickly drops.
When the key is first turned on the controller relay will close for about .5 second
and then open. Last time this happend I did find one bad plug, replaced and everything has been fine for the last couple years. I have had the controller apart but without a schematic it is hard to troubleshoot.

Thanks SKI

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Ski
"Love them diesels"

63 190D (sold)
84 300SD
97 Dodge Cummins
97 HD FLSTC(if Harley made a diesel I'd have one)

check the engine temp sensor.i beleive this model has a designated sensor for the glow system.a sensor with too high resistance value will give a short duration relay cycle.