2004 Pontiac Aztek Q&A

2004 Pontiac Aztek Question: the code is reading coolant is to cool,,but my heater works good, but my ingine

code reading coolant to cool -
Answer 1
poss stuck opn themostat or coolant sensor issues. that code can trigger if pcm see's to slow of a warm time -
Answer 2
scan test it to see what the temp sensor reads -