AC code 418 -1997 c280
 

It got a little warm the other day and I turned the ac on but it did not work. went through the ac test button setup and it gave me a 416 code coolant circulation pump ? What is it and how do you fix it ? I an going to get a 134a refill kit and see if there is a sight glass to check the charge ..... any help is always appricated. thanks

RE: AC code 418 -1997 c280
 

coolant circulation pump code has nothing to do with it that code pops up almost everytime i do a test on the a/c system could be numerous things wrong with an a/c system

RE: AC code 416 -1997 c280
 

Any starting point sugestions ? Is there a sight glass for the 134A , presure switches I can bypass to see if they are bad ? Any site with wireing diag. or location charts ?


Thanks for the help