It should be a fused circuit. There is also the possibility that the circuit was tapped into to signal the electric brake controller and a possible failed connection at that point. Since the elec brake controller is inop I would trace that connection first.
Have you found the relay?
2005 peterbilt 379 brake light switch location
Discussion in 'Trucks [ Eighteen Wheelers ]' started by Smellfunny, Jul 24, 2012.
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