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Audio stopped working


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Hello fellow Alphard people,

 

I've had my 2012 Hybrid for a few months now and never had a problem with audio until now. We used to get the Japanese lady, one or two radio stations and, most importantly, I could play music by connecting my phone via bluetooth. However, suddenly audio has stopped - all is silent. The volume buttons on the steering wheel no longer display anything and the knob on the right hand side of the head unit doesn't do anything when pressed except toggle between an 'Audio Off' message and blank. My phone is connected and I can see the selected radio station or music tracks, but there is no sound. There is not even the old intervention from the Japanese lady when you start up - instead there is text message in her place.

 

I have a feeling some setting or other has been changed somewhere, but for the life of me I can't find it! Anyone out there have a suggestion as to where I should look? I've managed to change the language of the head unit English (apart from most of the lower level menus) so am able to navigate top level menus, but I can't find anything that will allow me to switch audio on or off.

 

Any suggests extremely welcome!

 

Thanks in advance.

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Thanks for the suggestions. I'll take a closer look tomorrow. But to quickly answer in the meantime, I believe I have the 18 speaker system (there is a centre dashboard speaker, i.e. far away under the windshield).  Message are in English as I've changed language in the general settings menu (which I found using Google translate) - it warns that ETC is not connected, which I think is what the Japanese lady's voice would be saying if the audio had not been knocked off. My Bluetooth has been disconnected and re-connected many times - I don't think it's anything to do with this, but I will try playing with that again.

The problem really does appear, on the surface, to be a setting, as the volume buttons do not show anything in the display any more - they used to work fine and increase and decrease as you pressed the buttons. I suppose if there is a blown fuse it may be clever enough to not show any values for volume and to also show the text message instead of the voice. But then, if it was that clever, why not tell me a fuse has blown?

 

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Could you try the procedure here:

 

http://zatonevkredit.ru/repair_manuals/raw_content/AWI4PXGCrzlLPWuuVT9A

 

Open in chrome browser and you can use the built in translation from Russian to English. 

 

 

Interestingly, if the system detected a short circuit, it disables the speakers. 

Have you made any modifications to wiring? 

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  • 1 year later...
On 12/12/2022 at 10:44 AM, VirtualGuy said:

Hello fellow Alphard people,

 

I've had my 2012 Hybrid for a few months now and never had a problem with audio until now. We used to get the Japanese lady, one or two radio stations and, most importantly, I could play music by connecting my phone via bluetooth. However, suddenly audio has stopped - all is silent. The volume buttons on the steering wheel no longer display anything and the knob on the right hand side of the head unit doesn't do anything when pressed except toggle between an 'Audio Off' message and blank. My phone is connected and I can see the selected radio station or music tracks, but there is no sound. There is not even the old intervention from the Japanese lady when you start up - instead there is text message in her place.

 

I have a feeling some setting or other has been changed somewhere, but for the life of me I can't find it! Anyone out there have a suggestion as to where I should look? I've managed to change the language of the head unit English (apart from most of the lower level menus) so am able to navigate top level menus, but I can't find anything that will allow me to switch audio on or off.

 

Any suggests extremely welcome!

 

Thanks in advance.

Did you solve this issue?

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  • 1 month later...
On 12/30/2023 at 11:20 PM, Cavegod said:

Did you solve this issue?

No I haven't. I tried the fuse for the audio equipment but that didn't work. I've kind of given up for now until I get it serviced by a Toyota import specialist. Such a shame as it's such a lovely vehicle otherwise.

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  • 2 months later...
On 2/21/2024 at 10:58 PM, VirtualGuy said:

No I haven't. I tried the fuse for the audio equipment but that didn't work. I've kind of given up for now until I get it serviced by a Toyota import specialist. Such a shame as it's such a lovely vehicle otherwise.

Hi, I’m having the same issue, did you manage to fix yours and what was the cause and a fix?. Thanks Shaz

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On 2/21/2024 at 10:58 PM, VirtualGuy said:

No I haven't. I tried the fuse for the audio equipment but that didn't work. I've kind of given up for now until I get it serviced by a Toyota import specialist. Such a shame as it's such a lovely vehicle otherwise.

Hi, I'm having same issue with one of mine Alphard with 18 speakers system, what I've found out so far is, it's to do with rear top screen module which is inside the screen and something to do with wiring and amp not getting activated hence no osound, it can be fixed, I've spoken with Ben Hau who's based in B-ham he can fix it for the cost of £280. 

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40 minutes ago, Go Green Motors said:

Hi, I'm having same issue with one of mine Alphard with 18 speakers system, what I've found out so far is, it's to do with rear top screen module which is inside the screen and something to do with wiring and amp not getting activated hence no osound, it can be fixed, I've spoken with Ben Hau who's based in B-ham he can fix it for the cost of £280. 

I've not managed to sort my issue so this is good to know. I was going to take the Alphard for a service this summer and see if I could get the problem looked at then, so thanks for this, much appreciated - it's good to have a place to start looking. Let us know how you get on.

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Do all Alphards have the speaker grill in the centre of the dash, under the windscreen even if they have the 8 speaker system, ie no extra amplifiers?

I have the centre dash grill but I can only see 8 speaker grills along the sides, fairly low down. There are none on the roof.

I have a plug from the origional head unit with four pairs of wires. I get approx.  8 Megs resistance across each pair, any ideas anyone what they could be?

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26 minutes ago, Laurence said:

Do all Alphards have the speaker grill in the centre of the dash, under the windscreen even if they have the 8 speaker system, ie no extra amplifiers?

I have the centre dash grill but I can only see 8 speaker grills along the sides, fairly low down. There are none on the roof.

I have a plug from the original head unit with four pairs of wires. I get approx.  8 Megs resistance across each pair, any ideas anyone what they could be?

 No. I don't believe they do. Gen 1 certainly don't.

 

Almost certainly some after market gizmo, DVD. Digital TV.

 

I don't know what you are measuring, but it is certainly not the output impedance of an analogue amplifier channel.

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