How to troubleshoot no Bluetooth audio?

[Charlielj]

This is on a 2014 LX 570. First, I tried to play video via my iPhone to the rear screens via RCA A/V cable to HDMI and that goes to USB-C which connects to my iPhone 15.

Well, this obviously does not work even when pick the Rr-A/V as the source. So, I gave up on this but now my Bluetooth audio no longer works. On the back screen as well as the front screen, it shows that my iPhone is connected to the my vehicle and is currently playing but there is no sound coming out of the vehicle speakers at all. So, what do I need to do to get my Bluetooth audio working again? This is annoying. Help is much is appreciated!

 

[lx200inAR]

This is on a 2014 LX 570. First, I tried to play video via my iPhone to the rear screens via RCA A/V cable to HDMI and that goes to USB-C which connects to my iPhone 15.
View attachment 3471407
Well, this obviously does not work even when pick the Rr-A/V as the source. So, I gave up on this but now my Bluetooth audio no longer works. On the back screen as well as the front screen, it shows that my iPhone is connected to the my vehicle and is currently playing but there is no sound coming out of the vehicle speakers at all. So, what do I need to do to get my Bluetooth audio working again? This is annoying. Help is much is appreciated!
View attachment 3471391

I’d probably try repairing the phone to the truck. And maybe check the volume on your phone. Do phone calls work. While they are both bluetooth (music vs voice calls) it’s 2 different protocols between the phone and the AV system.

As far as the HDMi to rear AV, I’d want to find some way to verify that the video feed is ever making it through that box. I have t done video out of an Apple device in a while but there used to be all kinds of caveats.

 

[cnd]

Also worth checking that you have the volume on the dash turned up... that's tripped me up a few times myself.

 

[Charlielj]

Also worth checking that you have the volume on the dash turned up... that's tripped me up a few times myself.

In the past whenever my phone automatically connects to the vehicle, the volume of my phone automatically set to max so I didn't check my iphone's volume. I turned the volume of the vehicle's almost to max and I can hear a very faint sound. That was when I check my phone's volume and it was super low. Thank you for the suggestion!

 

[Charlielj]

I’d probably try repairing the phone to the truck. And maybe check the volume on your phone. Do phone calls work. While they are both bluetooth (music vs voice calls) it’s 2 different protocols between the phone and the AV system.

As far as the HDMi to rear AV, I’d want to find some way to verify that the video feed is ever making it through that box. I have t done video out of an Apple device in a while but there used to be all kinds of caveats.

Thanks! I tried disconnect and reconnect to the iphone again of my turned up and it works perfect again. I tried not to re-pair to the vehicle if I don't have to because then I'll lose all my phone contact settings.