Air Valve Unit (Solenoid Exhaust Brake) on Volvo Trucks.

[@maulanalana4984]

Maaf bang..kl exosbrek g fungsi kira kira apa y bang

[@BiggyFeri]

Cek errornya dulu, ada gak bang

[@jeremymeyer364]

Hi I have replaced one, it works perfect all 3 stages..
After a few km it comes on hard by itself, without selecting it.
Switch off after a while it works fine again until it goes on again and it does not release.. Please any advice?