Help: got P0116 Engine Coolant Temp CRK Range/Perf code on my '98 S70

Would like to see if any one got check engine light and the foolowing
diagnostic code (from ODBII reader): P0116 Engine coolant temp CRK
Range/Perf.

It's been the third time in the last 2 month that the check engine
light comes and the reader reports this code. Last time I erased the
diagnostic code and it did not come back in 2 month. But it happenned
twice this weekend.

Car: Vovlo '98, S70, ~76,000 miles

Any idea what I should do and why this code usually come up? Coolant
level is OK.

Thank you!

 

Usually the thermostat is setting this code would change thermostat clear
code & drive car if code comes back the ECT sensor is faulty replace the
sensor

--
"*-344-*Never Forgotten"
Is for the New York City Firemen who lost their lives on September 11,2001.
The official count is 343, but there was also a volunteer who lost his life
aiding in the initial rescue efforts. And I will never forget them as long
as I live,
nor should any American.
"Mow Green"