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BCM fuse keeps blowing

2002 Saurn L300. No power on interior lights...dome...map....but power everywhere else like locks..windows. As soon as key is turned to accessories, the fuse blows. I did continuity check on both sides of fuse box (engine compartment) terminals where fuse is inserted and one side is hot and the other side seems to be grounded, which of course is probably why the fuse is blowing, but not sure where to go from here. Would greatly appreciate any suggestions. I don't think the BCM itself is bad, because only interior light power is out.

Posted by Anonymous on

  • Anonymous Dec 18, 2016

    It is the BCM 2 fuse

  • Jeff Armer Dec 18, 2016

    BCM 2
    Red (10)
    Body Control Module
    Powers BCM only ! You have a short to ground on the B+ supply circuit !

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  • Cars & Trucks Master
  • 11,712 Answers

Which # fuse blows ? Find the connector at the BCM That this power wire is in an disconnect the connector ! With ohm meter see if it still has continuity to ground . If so it's not the BCM , that wire is shorted to ground . But if it doesn't show continuity with ground , it's shorted inside BCM .

Posted on Dec 18, 2016

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  • Cars & Trucks Master
  • 1,335 Answers

Sounds like you may have a pinched wiring in the circuit where the fuse supplies power to. Might want to remove all the components that this circuit operates and one by one connect them. Once the fuse pops, you have isolated the circuit and all you need to do is follow the specific wiring to that bad circuit and find the problem.

Posted on Dec 18, 2016

  • Jeff Armer Dec 18, 2016

    The fuse powers BCM only !
    BCM 2
    Red (10)
    Body Control Module

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