Once locating the fuse on the back of the head unit, pull the fuse out and check to see if the arch in the colored plastic is connected. If not, the fuse is “blown” and needs to be replaced. Replace fuse with the same amp rating and radio will power on.
How do you reset a Pioneer DEH receiver?
Why won’t my Bluetooth connect to my Pioneer radio?
Devices have not been paired
If this is the first time trying to connect, make sure the Pioneer FH-X730BS and the desired device are in pairing mode when connecting . You can pair your devices under the Bluetooth settings. Navigate the Pioneer FH-X730BS Bluetooth settings to turn on pairing mode.
Does Deh-S31BT work with iPhone?
(iPhone function is not available for DEH-S31BT.) This function is only available when an iPhone/Android device equipped with voice recognition is connected to the unit via Bluetooth. and then talk into the microphone to input voice commands.