Good Morning : Having similar issue with our 2017 Peterbilt 567. Have lost parking lights in headlights and rear tractor tail parking lights. No blown fuses and after tracking as much wire as we see no visable breaks. When power probed receiving screwy voltages at point of lights. Before spending $1,500 on a chassis control module would like to see if there is a way to test. Thank you for your help - Kevin VIN : 1XPCD49X2HD448056
Having the same problem on a 2019 kenwoth w900 so wired all the wiring harness are like brand new wondering if the computer could be bad
