Cbromer

I have a 2006 BMW 530i. The sound went out so I checked on line and did the fiber optic loop and it did not work? Here’s what happens. I start the car no sound I remove the yellow radio fuse in the dash the ccc powers down I put the fuse back in and then I have sound. When I shut the car off and come back get in the car start it no sound, so pull fuse out put it back in a poof I have sound. What couLd it be? Please help

donpb

Sounds like an intermittent module.

seanjordan20

You have a long road ahead of you if you don't have the proper software to troubleshoot. You're going to need INPA and ISTA. If you don't then you're flapping. Why are you pulling a fuse? Why not do the reset by pressing the power button and eject button to see if that solves the issue.
Post the error codes and we can assist from there. Until then it's just guessing

Cbromer

Hello gentlemen thank you for responding. As far as the intermittent modules go I wouldn’t know where to start if you give me an idea where I should start that’s where I start. Now the reason for pulling the fuse is quite simple. I did it whenever I had a friend recommended it and I put the fuse back in and I had sound. Brought the car home parked it get up the next day hopped on it to go somewhere no sound. So I pulled over pull that fuse outWatch the stereo go black put it back in and I got sound. Next time I got the car no sound repeat fuse thing sound. I have no idea what to do

seanjordan20

Where in the system did you put the loop at? I would recommend you getting the software stated above and installing it on a laptop or windows tablet. It will make your troubleshooting go a lot quicker. Plus you will need the software if you plan on keeping your car for a while. It seems to me maybe you need a software update since a reset is making it work or maybe a module is on its way out. Is there any errors on iDrive or light on the dash illuminated

Cbromer

I put the loop on the satilite radio. Not to sound dumb but are there other locations? And where do I get this software?

seanjordan20

Google, sites have it for download and yes the whole system takes that loop. Once you plug it in the right place and it starts work that lets you know what module is bad

Cbromer

Oh wait there’s other place to plug that into?

seanjordan20

Yes your car is a network and the modules talk to each other. I've only had to troubleshoot my TCM with the loop so I never had to go far down the line to test. ISTA would be the best way but the loop will find your issue also if you know the correct way to troubleshoot with it

Cbromer

So I down old the software do I need any special cables?