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ls1nova71 · 04-11-2019, 09:43 PM

No. For a GenIV swap you just use the original switch and hook one wire to the cold side of the switch so the ECM sees 12v when the brakes are depressed.

04-11-2019, 09:43 PM	#2
ls1nova71 Registered User Join Date: Dec 2009 Location: Independence Mo Posts: 4,119	Re: Brake switch for Gen IV LMG 5.3 No. For a GenIV swap you just use the original switch and hook one wire to the cold side of the switch so the ECM sees 12v when the brakes are depressed. __________________ My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html