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Message: [QUOTE="Estrogen Hostage, post: 95897, member: 2140"] That follows what I've got on the hot side. OK, so on the other side it's down to a chafed wire/backfed relay, or a bad PCM. After looking all this over I am leaning towards a chafed wire. Can anyone check their truck and tell me what the voltage difference between the two posts and from the switched lead to ground is? This would be when the truck is running and the glow plugs are off. Someone correct me if I'm wrong, but since there is no current through the coil, the voltage on the two posts should be the same, right? The coil will just act like a piece of wire until the contact is closed, and then there will be a voltage drop across it. [/QUOTE]

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