I have a 05 Dodge Ram 1500 Dayton series and I'm leaking antifreeze

What is your question?

I was told that my water pump was going out and I think it is but I put my truck on a lift and it looked like it was leaking antifreeze from behind the water pump. And I could use some help with this- The engine light is on and reads error code p0404 but when I put coolant in the reserve the light goes off. Are these 2 issues connected?