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im cam, a licenced diagnostic tech.
this is a coolant sensor minium temperature code.
i have seen this code before 2 times.
the first was a water pump issue as there was low flow and it needed to be replaced.
the 2nd was a electronic thermostat issue.
it was stuck open causing the engine temperature to not reach its proper operating temperature .
the operation of the thermostat will need to be checked. you should not see any flow in the radiator untill the engine reaches over 200 deg.
if you notice circulation at less than this than the thermostat will need to be replaced
let me know what you find