Why does my ecm 1 fuse keeps blowing as soon as I turn the key to the on position

40

Asked by Joseph Dec 16, 2014 at 08:31 AM about the 1995 GMC Yukon SLT 4WD

Question type: Maintenance & Repair

Please give me more insight as to what
is going on With it.

5 Answers
63,145

BoholMark answered 9 years ago

It's possible that the fuse has other accessories working on it. For example, I had a Ford that the ECU and lighter shaded the same fuse.

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Joseph answered 9 years ago

That is not a good enough answer what is all on the ecm 1 fuse

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just_fun answered 9 years ago

Check ecm wires for short.If u are not starting the truck and the fuse is blowing that's where I would start

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Shaggy17 answered 7 years ago

So had a gmc yukon xl that keeps blowinv the ecm fuse went through several connections and fuses inside and out and couldnt find the problem so i hooked up a scanner and it showed the fuel composition sensor circuit was low so i lifted the truck up and checked it out and checked the wires and found a couple broken and frayed wires that needed fixed that should take care of the problem cause everything else is fine

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