[dbtractor]

So to start out several years ago the fuel gauge started reading backwards out of nowhere and. Now just recently I have gone into the HH menu and changed an option under HB H3 LAP to yes and the gauge reads properly again. My question is what does lap mean because the service manual does not say anything about it.

Here is a link to a video of me changing the setting. filtered-571A2A11-4783-4AFA-B23E-9811883B1C4F.MP4

 

[dcavni]

If i judge by my 4050 i would say, that starting tractor in the cold simply lowered voltage low enough, that instrument panel resetted. It happens to me also, i start the tractor in the cold and clock is gone, so probbably everything else resets to defaults....