Best way to find it.
Ford Q&AAsk Your Question
2003 Ford Mustang GT Question: The hazard and turn signal flasher, located exactly.
Answer #1Hightec1 February 25, 2012, 23:22Technician
First get a new flasher relay(Ford part is the best)and look under dash
next to the plug the scanner/computer connects to.
I think it is on the right of the lower dash.(drivers side)
Look under dash above the plug and match up relay with the new one.
Flasher and hazard relay should be the same relay.