[Searay55555]

Hi All,

I have a 2012 E93 335is, with the technology package (hard drive) and the Logic7 system. I recently fried the amp due to water exposure, and am getting the "No Warning Tones" alert. No chimes, and no sound out of the speakers at all. I replaced the amp with a Logic 7 out of an '07 335i, and I still have the same problems. I've tested the wires coming out of the amp to the speakers and they are pushing current. The LED lights inside the amp (yellow and red) are lit solid, no blinking.

The fiber optic connection that goes into the amp is NOT solid red. It is solid for 9-10 seconds and then their is a brief break (blink). I think it is supposed to be a solid light constantly.

I've checked all of the fuses in the fuse box, and everything appears okay. FM tuner seems to be working in the CCC. I can put a CD in, and it accepts it but it does not play the tracks. It shows and reads the tracks but it does not start to play them. I can even select tracks, but the counter sits at 0:00. I can switch to AUX, where I have a Sirius radio hooked up, but again nothing. I do not have the Sat. radio module. I can select a song in my music collection on the hard drive, but again it does not actually play it. It just sits at 0:00.

Navigation and all of the other CCC functions seem to work, except sound output. I've tried to reboot the CCC, but this did nothing.

Any ideas at all on where to start looking? I'm thinking there may be something wrong with the head unit, or maybe there is a fuse back there that I don't know about.

I'm lost on this one.

Thanks, Kevin

[ctuna]

You might try updating the firmware for the amp using winkfp.

https://www.e90post.com/forums/showthread.php?t=1751808

Water Drains
https://www.e90post.com/forums/showt...hlight=battery
https://www.e90post.com/forums/showthread.php?t=1566005
https://www.e90post.com/forums/showt...hlight=battery
https://www.e90post.com/forums/showt...hlight=battery

Logic 7
https://www.e90post.com/forums/showthread.php?t=1056432
http://www.bmwlogicseven.com/?p=3837
http://www.bmwgm5.com/
https://www.e90post.com/forums/showt...5#post24455335
http://www.e90post.com/forums/attach...2&d=1260829447
http://www.google.fr/url?sa=t&rct=j&...slMu2A&cad=rjt
https://www.bmwgm5.com/Logic7_E90_91_92_93.htm
http://www.bimmerfest.com/forums/sho...d.php?t=982666

http://www.e90post.com/forums/attach...1&d=1209780605
Most
http://www.e90post.com/forums/showthread.php?t=727663
http://www.e90post.com/forums/showthread.php?t=347222
https://www.google.com/search?q=BMW+...VCkMqy2aCK09M:
http://www.1addicts.com/forums/showt...php?p=19256760
https://www.teacremotes.com/bmwgm5/

The second link in the last group of links tells how to read the Logic 7 amp status
LED's

[Searay55555]

Thanks for the insight. I have done a little research, and it seems that the fact that the light is not solid red is not a problem. I also traced the fiber line up to the front of the car, in the drivers foot well, and it is also showing up there. So, it appears as though there is not a bad component somewhere in the line that needs to be bypassed. The rest of the issues still baffle me.

Kevin

[ctuna]

Your reply is very confusing did you not see this


Steady yellow means its getting input fiber optic signal from the head unit (CCC or CIC) and output signal travels to the head unit correctly through other units , so you should hear the sound in most cases, but rarely it also could be some software glitch with CCC, when you don't get sound with working amp. Try CCC reset.
Blinking yellow means AMPLIFIER IS WORKING and getting input signal from the head unit, but output signal is somewhere lost due to the next bad unit in the loop. So you just need to find a bad unit and either bypass it or replace it with a working one. Most common units to fail are: Sirius satellite unit, Bluetooth telephone unit

No Yellow LED, but you can see blinknig red LED deep inside most likely means 3 things:
amp is bad
no power getting to the amp check last 2 thick wires red and brown 12V should be present always, otherwise check fuses in the trunk.
No fiber optic input getting into the amp from head unit, but in this case you should see a red LED on for 15-20secs, this means amp is waiting for a signal and if no signal present it will go to sleep mode. Easy to check, you should see a blinking red LED in the CAR CONNECTOR with the amp fiber optic connector disconnected. If its blinking it means head unit is sending signal to the amp and amp CPU has to accept it and send the output signal back to other units and head unit eventually. Rarely, But if no red led present in the connector it means no signal is coming from the head unit due to either bad head unit or some fiber optic wire damage. If you remove head unit and you see a red light blinking, you should see the same blinking at the amp connector.

[Searay55555]

I have the solid yellow light in the amp. And, I also have the blinking red LED (fiber) in the car connector that goes all the way up the the front connector, so I think I have a solid loop.

I also rebooted the CCC again by holding the volume button in for 25 seconds. I still have the same symptoms.

FM tuner seems to be working in the CCC. I can put a CD in, and it accepts it but it does not play the tracks. It shows and reads the tracks but it does not start to play them. I can even select tracks, but the counter sits at 0:00. I can switch to AUX, where I have a Sirius radio hooked up, but again nothing. I do not have the Sat. radio module. I can select a song in my music collection on the hard drive, but again it does not actually play it. It just sits at 0:00.

[Searay55555]

Another point to make is, the whole system was working properly until I tilted the car up from the front and flooded the rear of the amp, frying the smaller board of the two.

[milest3ch]

Wondering if you ever resolved this issue. Having the same problem with my 2011 E93 328i