01-04-2020,
(01-04-2020 )Sherm117 Wrote: [ -> ](12-21-2019 )hhow55 Wrote: [ -> ]I would disconnect power source to ecm for 30 minutes, and maybe that would do the trick.When you say disconnect you mean disconnect the battery?
paccar product cab controllers are well known to be buggy. need a complete hard reset once in a while. Disconnecting all batteries for 30 min achieves this.
everything from gauge lights suddenly not working, ghost codes, to other more serious glitches.