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Where is the fuse for the diagnostic terminal on a 2004 trailblazer?
Tonygk
We have a 2002 2wd TB and I had the same problem i looked it up just like you and all of the online techs were saying look for 15amp (blue fuse) for cigar/power outlet found the fuse finally its in the fuse box under the hood on drivers side your looking for a 20a (yellow micro fuse) its about right in the center of the fuse block look at the fuse block schematic on the in side of the large outside cover its designated CIG on the cover.
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∙ 14y ago
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