Honda TRX500FA6 AT Owner's Manual page 40

Indicators & Displays
(4) "E _ _ _ _ _ F"
When the fuel gauge show "E _ _ _ _ _ F" (4) and "LO FUEL" (5)
blink 3 times alternately and fuel mark blinks, you should refuel as
soon as possible.
The amount of fuel reserve is approximately:
4.9 ℓ (1.29 US gal, 1.08 Imp gal)
Fuel gauge failure:
If the fuel gauge "E – – – – – F" (6) is blinking, the fuel gauge
function has failed. See your dealer.
(6) "E – – – – – F"
30 Instruments & Controls
(4)
(5)
(5) "LO FUEL"
(6)