stoplight always burning even without key
https://www.google.com/shopping/product/9820688343613389695? q=2006+Chevrolet+TrailBlazer+LT+4WD+ignition+relay&bav=on.2,or.r_qf. &bvm=bv.56146854,d.aWc,pv.xjs.s.en_US.zw3S- PWncBk.O&biw=1309&bih=710&tch=1&ech=1&psi=rEGBUpbuKKn4yAH 574C4BA.1384191862968.5&sa=X&ei=vEGBUorRH8viyAHEjIGIAQ&ved =0CHEQ8wIwBQ
No. 47----starter (same deal)~
not entirely sure...because I haven't got my mitts on YOUR relay box~but the 2002 vehicle featrued a "starter" relay in the same configuration~
....also would remove any corrosion which will be built up with every start on the 1/0 black battery cable connection to the chassis....wirebrush that one for a Solid ground to all accessories including the 750 mA ECM ~
here's where you'll find the LEGEND to all that stuff~ http://www.wiringdiagrams21.com/2009/05/22/2007-chevy-trailblazer-l6- engine-compartment-fuse-block-relay/
....a little help here?~
check the stoplamp switch located on the brake pedal assembly. it may not be releasing and may be keeping the circuit closed all the time.
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