Faulty Glow Plug Relay
Glow Plug Relay harness is open or shorted
Glow Plug Relay circuit poor electrical connection
Engine Light ON (or Service Engine Soon Warning Light)
Glow Plug Relay Open Circuit / Short To Ground is the generic description for the P1619 Audi code, but the manufacturer may have a different description for your model and year vehicle. Currently, we have no further information
about the P1619 Audi OBDII code.