20 Most Recent 2009 Harley Davidson FLHT Electra Glide Standard Questions & Answers

Pressure relief valve for what. If it's the rear air shocks then on a 2009 it will be on the behind the left saddlebag. Just behind the rear shock. I’m happy to assist further over the phone at https://www.6ya.com/expert/robert_5bac37c3cb991fdb

What are you trying to bypass???

I had the same problem on my ultra classic 2009 and it seems it is a kind of rust inside the control unit and i did cleaned it but it didn't work permanent and the only cure was to replaced the throttle control cable and i guess they call it fly by wire hope this will help

Duplicate question already answered

20 years in the elements might be time to replace it .

Harley Davidson Wiring Diagrams and Schematics