my e70 lci mutted suddenly

[Cnoro]

hello guys
yesterday i was listening to the radio, and suddenly it stops play music and start playing a strange sound

i noticed after that, i got no more acoustic signal warnings and no pdc acoustic signal



did it happen to anybody this and how to solve?

thanks

[jbash87]

You most likely have an open MOST loop. This meaning that one of the devices that communicates via fiberoptic (MOST) is not working properly. Depending on your options those would be CIC, CD Player, Amp, and combox. Check for trouble codes. ISTA will tell you which device is not responding.

[Cnoro]

Originally Posted by jbash87

You most likely have an open MOST loop. This meaning that one of the devices that communicates via fiberoptic (MOST) is not working properly. Depending on your options those would be CIC, CD Player, Amp, and combox. Check for trouble codes. ISTA will tell you which device is not responding.

in my CiC , navigation has voce ( that voice now is more bass sound )
i saw yesterday that was a fiber optic red light in the trunk to the amplifire,

the fuse 7.5A is ok