Hi all, first time posting here. Wife and I picked up a 2003 C4S in April which has been fantastic. The car is well sorted, but one thing that annoys me is the ambient temp sensor does not work, it just shows ---F. There are no errors displayed, it just does not show the temperature. The sensor is there by the radiator on the passenger side, and I even tried replacing it with a new one from Pelican Parts, but that did not change anything. I also tried turning on the car with no sensor attached to see if it would throw a code, and nothing changed. I scanned using a basic cheap ODB2 scanner but there are no codes present it could find.Any ideas what I can try? Thank you!

 

Buy a multimeter and check continuety back to the plug in the frunk and byond if needed. The schematics r all over the web but if u want a hard copy buy a Bemtley manual