[naz]

i got that light once when i didn't clamp the battery terminals tightly enough.. hopefully it will be as simple as that for you.

if you've got coolant, the terminals are on tight, don't see any loose wires/connectors/grounds, nothings leaking.. maybe see if the radiator fan is coming on.. water pump maybe? thermostat? plug wires in tight? hopefully its something small like that

maybe drive around see if its any specific condition that triggers the light..

good luck man