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D3 - Sat Nav, ICE, Audio & TV All in car entertainment discussions

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Old 10th July 2017, 10:12 PM
karlcossy karlcossy is offline
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Default mmi problem no screen

mmi now stopped working while fitting interior was all ok
splash screen starts up then goes black no fuction on mmi panel
vcds cant see half the kit nav cd tuner etc and also noticed there is no light in the fibre cables anybody got any ideas please
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Old 14th July 2017, 06:44 PM
Joe2.0E Joe2.0E is offline
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Start by checking your battery. The MMI can shutdown various bits if its power source is not up to scratch. Next step would be trying to figure if one of the mmi connected modules such as Bluetooth, Amp etc. has gone faulty. If one goes down, it all goes down. You can buy a fibre optic loop from Audi to bypass each module in turn to isolate the faulty one. Scan/Clear faults as you go.
The MMI control panel can also play up if someone has spilled something on the buttons. It's a poor design having cupholders right next to the mmi panel.
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Old 15th July 2017, 07:57 AM
Tiburon3 Tiburon3 is offline
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Quote:
Originally Posted by karlcossy View Post
mmi now stopped working while fitting interior was all ok
splash screen starts up then goes black no fuction on mmi panel
vcds cant see half the kit nav cd tuner etc and also noticed there is no light in the fibre cables anybody got any ideas please
Good morning.
It seems to be a cut in the optic fiber loop, by any reason, the loop is open.
If I remember well, you were changing the full interior of the car. I assume that you dismantled the CD changer / Audi AMI modules. Try to start by there, maybe you forgot to connect the fiber optics connector.

Cheers from Spain
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Old 15th July 2017, 09:07 AM
JulianHicks JulianHicks is offline
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Just for information so you can make sense of what you see re. 'red light'.

The optical loop normally goes:
1) Control Head [aka Interfacebox] in the dash
2) Phone - passenger floor
3) Boot - Amp, Nav, TV, Radio
4) Glovebox - Media 1, Media 2 [typically CD, AMI]
5) Gateway - dashboard

You can check the path on a working MMI by using the MMI hidden 'Red screen' - the device numbers are, I believe, in loop order.

Julian
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