As stated truck side problem. I have no power to the center pin for pigtail. As tested with pigtail disconnected from truck. Fuse L1 in outside firewall fuse panel has power with key on. I replaced it for the heck of it because it looked like it may have blown at the side. No fix.
The brake apply backup circuit appears functional since the trailer abs lamp proves out every time I apply my brakes.
Since I'm not at home and I'm old, fat and cranky, I really prefer not to crawl around piss laden pavement unless I have an idea of where to start.
Are the any known problem areas for this circuit or connectors that include this circuit? Would anyone happen to have a wiring diagram with connector and pin locations?
'19 579 truck side trailer abs problem
Discussion in 'Peterbilt Forum' started by MicksRule, Feb 9, 2023.
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