Howdy,I know that code P0380 is glow plug circuit relay,but how or what do I do to fix it.Any info would be great.Thanks.....

 

The most common reason for that code is that the intake air preheater relay has failed. Check your relay, and if it is bad you can replace the grid heater side with a very inexpensive universal relay from an autoparts store.

If the relay is good, then check your grid heater elements with a continuity tester and make sure that #1 is not burned out.