: Power for the diagnostic port (typically an orange wire with a red stripe).
: This is the primary location for most interior and lighting circuits. It is typically found under the dashboard on the driver's side or behind a removable kick panel . 2001-peterbilt-379-fuse-panel-diagram
: Some 379 models feature a smaller mini-fuse panel behind the steering wheel or near the instrument cluster. : Power for the diagnostic port (typically an