my low fuel light wont go off on 2005 Porsche Cayenne

fuel warning low fuel light stays on all time the picture garage fuel pump stays on even after fill up tank alays never below halfe full when i start engine a warning beep tells me to refuel checked instrument cluster with duramtric/piwis but shows no fault.any one got any ideas whats goin on .thank you

Asked by for the 2005 Porsche Cayenne
scan codes and see whay codes you get. something relating to fuel level sensor i suspect
thats what i cant understand im getting no codes about fuel problems or gauge problems . thanks
that can be the case,you will not always get a code for fuel level sensor. seek diag and have it tested
ok thank you i will try that.
1 more answer , 1 more comment
Fuel level sending unit (gas tank float) has probably malfunctioned and no longer is sending a proper signal to gauge as to fuel level. Need to have checked and probably replaced.
i dont think its that because fuel gauge seems to be working fine . thanks
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