420A Fuel warning light?

[xGTG480x]

Hello the yellow gas light came up on my dashboard but I have a full tank of gas’s and it’s not my fuel sending unit or my fuel pump can any one help me out

 

[pauleyman]

I"d have to look it up for a 420 but there are usually 2 sensors. One for the gauge and one for the light.

 

[BLACK'98DSM]

The same float is used to send the gauge reading and trigger that warning light. What makes you so sure it isn't the sending unit? Alternatively it would be a short or loose connection.

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