Coding help please

[hpy540]

I am getting 2 errors and i do notknow how to deal withthem. i have the Rolf ibus bridge working, but i do not know how to fix the radio. is is not working. I thuink i need to code the steering wheel conrtrolls to the nav to the board monitor. But do not know. these are the codes i am getting 2 codes BMBT 0x0320 0x0101

can someone point me in the right direction?

[Brian-bmw]

Other than the error codes, what are all of your symptoms?

[hpy540]

The radio doe not work. it used to before i replaced the steering wheel. the car was smushed, it had a x 5 wheel in it with blown bag. I replaced the wheel with M3 tricolor stitch wheel. Another mechanic said it was the control module, i put the one back in off of the x5 wheel( it worked withthis one before). But still nothing,

Any suggestions would be helpful

[Brian-bmw]

I just found your posts from October, but I am not sure of all the details...

1. You have navigation, correct?
2. Did you do a navigation retrofit? If so, did you use a retrofit harness or a original nav harness?
3. When you say that you "replaced it [the radio] with the correct one," what exactly did you have and did you install? Did you put in a bord monitor radio, and is it an old-gen or a new gen radio? What part number?
4. When you say the radio does not work, exactly what is not working? Does the radio appear on the screen, but you get no audio? Or, is there no radio function that visibly appears on the screen?

[hpy540]

1. Yes the Navigation works
2. the car came foctory with the navigation in it. The radio was to the best of my knowledge the factory OEM radio that came in a 2001 M5. it had sound and controll when i originaly got the car. And it did appear n the Nav screen, The car had the wrong steering wheel in it(x5 and beat up). The air bag was blown also. I changed the steering wheel with the airbag and radio control module that is mounted in steering wheel to the one from the M3 i bought to replace the airbag. some where i lost radio. I then changed it back to the one(radio steering wheel module ) that came in the car when the radio worked. Now it still does not work. No sound or no radio functions on Nav screen. At one point i did check the volume up, DN, & seek functions in the wheel controls when the power light would not come on the radio. I checked this with a luanch x431 tool. they worked but still no power light on Nav surround, no radio functions on Nav screen, No sound.

Much appreciated help and thanx again even if we dont solve this problem.

I also have a 2001 540 6 speed sitting right next to it. I am familar with these cars.

[Brian-bmw]

It could be as smiple as a blown fuse or a bad radio module...

The steering wheel controls simply communicate over the I-Bus. Therefore, it is unlikely that the steering wheel is related, expecially if the other navigation functions work OK.

So, I would check the radio fuse that is underneath the main radio plug in the trunk. If that fuse is OK, then you probably have a bad radio module.

[hpy540]

OK i just pulled C43 BM US, I believe it was radio module in trunk, i checked 7.5 Amp fuse and it was good for continuity, i looked @ radio, this was not the black module in the same location, it was silver, the plugs did not look good, looked kind of correded. I sprayed with electrical contact cleaner and still nothing. Just from my expiernce with this stuff this unit may have been underwater. the car i bought from insurance co and they whored it up but good. Swapped out a bunch of stuff and made a real mess of IHKA, mirrors, tail lights, etc. They swapped out all the good stuff as it had only 61k miles on it. No disclosure on flood and i would say it was not a flood car, way too clean, but that is not saying they could not have swapped the radio module out fo a flood vehicle......

If i take my radio our of my 540 that is sitting right next to it will that screw up the coding in my 540? Will i have to code it to the M5 for it to work?

I have read a frew places that there are better radio modules out there OEM, C53 i believe had sirus capabilities, the next one has traffic controll capabilities. I do not car about traffic stuff as not much congestion up here in the frozen tundra.

[Brian-bmw]

Radio modules are independent of coding. It is OK to swap the radio between cars.

Yes, there are newer radio modules with more features. The "New Generation" BM53 radio modules have aux input, Sirius support, and MP3 CD support. Traffic info is only available in Europe through the Euro-only BM54 radio module.

[hpy540]

Gonna swap them first and see. B back soon......

[hpy540]

WHHHOOOOOO HOOOooooo ...... Radio module bad. the one out of the other car works great. But now i need one for that car.