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04-11-2019, 06:33 PM | #1 |
Senior Member
Join Date: Aug 2018
Location: Western Colorado
Posts: 1,165
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TCC Brake Switch Wiring
I've been researching but haven't been able to find a definite answer. I've got a Gen III LS and a 4-prong brake switch and will be installing LED tail lights. On my dad's Gen IV with a 2-prong brake switch, we installed a 470 ohm resistor but we did that so the TCC wire would see 12v. With my 4-prong switch, is that necessary? Below is the wiring diagram from PSI. I will be connecting the red to switched 12v, purple to TCC wire out of the PCM, and white and orange to the brake switch wiring from my American Autowire harness. Do I need to install a resistor inline on the white or orange wire for the tail light wiring?
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1964 Chevy C10 - Gen IV 5.3 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=768632 1968 GMC C15 - Gen III 6.0 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=772047 1969 Chevy C10 - Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=809184 1978 Chevy Scottsdale K20 1993 Chevy C1500 - 5.3/T56 swapped 2008 Silverado Duramax |
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