[Snoopy Singh]

I have added $676 to the vo in the Cas and Frm ecu's, then coded cappl, caudi, ctune, chost etc. Everything was successful and when I check the .trc files they have changed from stereo to hifi. After leaving the car for 15mins I checked the speaker output voltage and its still at 11.9volts max volume, same as it was when in base stereo mode. I'm using the Bmtechnic black cable with the expertmode profile, (tried with manipulation profile too) and just cant figure this out.

Please someone help

Thanks

[bmw325i]

Did you recode 2urad?

[Snoopy Singh]

Thank you for your response. Ah, I didn't code the 2urad. I have the ccc pro navigation headunit ($609) will the 2urad apply to me?

[taibanl]

Are you measuring vAC or vDC

[Snoopy Singh]

I'm measuring ac, Not sure if this is relevant, but car is a 2006 e92 335d and I'm using the bmtechnic black cable package. Also the car was fully updated by main dealer not long ago. So although I have the ccc pro nav, the backround on the display is now silver rather than brown. Could it be that my ncs expert files are too old due to the car being updated now.

Thanks

[Snoopy Singh]

Is everyone else as stumped as me. C'mon folks anyone have any thoughts on this ?

[Teq]

I can't understand what is the problem?

[Snoopy Singh]

Added $676 to VO using expert profile, FA Write this to CAS and FRM. Then I SG-Coderein the Cappl, caudi, ctune, chost and ctune. After waiting for car to sleep I went back into ncs and read the cappl module and the .trc file shows that the changes have taken place. Hifi is now showing rather than stereo which it was before. So this is telling me that the coding was successful.

My problem is that when I use a Volt meter on AC to check the speaker output, it is not 5v low level, its still at around 9/10volts exactly the same as it was in stereo mode.

Anyone have any thoughts to whats going on or have any suggestions to what else I can try or may be missing.

Thanks

[WilliamS]

You are checking the voltage from the wires from the head unit to the amp not after the amp to the speaker correct?

[Kenti]

Didn`t think the coding would help on voltage, just flattening out the curve. Speaker output will always be the same, as long as it comes from the same amp ( without adjusting the level output on the amp). Low level output is when using the red and white connectors who just send the signal forward to an amp.

[Snoopy Singh]

Originally Posted by WilliamS

You are checking the voltage from the wires from the head unit to the amp not after the amp to the speaker correct?

Correct, I am measuring the outputs directly from CCC idrive headunit. My car had base stereo/Idrive with the horrible eq curve, front and underseats together and no amp or tweeters, therefore only 4 outputs from headunit going directly to speakers. Front L + R and Rear L + R. Front speaker and underseats wired together.

I'm checking the front left output wires from the headunit with a scope and test tone cd. The way I understand it, is when you code the headunit to hifi, it will remove the eq curve and change output from hi level speaker to low level output. Low level preamp signals are usually 4 or 5 volts are they not? At max volume, the voltage reading was 9.8volts. After coding I was expecting the volume output to max at around 4 or 5volts because the car would now think hifi option is installed and all it has to do is send the audio signal to the amp.

Have come across other posts where some have had great success in coding from stereo to hifi and then reporting a max voltage of around 5volts. I cant see where I'm going wrong. The coding doesnt seem to be doing anything at all.

Thanks for your help folks

[WilliamS]

when you added the $676 did you go to your modules and select 2Rad or 2uRad and do a SG_CODIEREN on it then process. This should allow the module to read the VO and make the change over needed.

[Snoopy Singh]

Yes, Using expert profile Added $676 to VO and FA write this into cas and frm. Selected cas then fa write then execute job, change ecu to frm, the fa write and execute job.

After this I selected cappl, changed job to SG_CODIEREN and execute job. I repeated the SG_CODIEREN and execute job for chost, ctune, caudi, cgate as these are the idrive related modules. There is no 2rad or 2urad modules when I'm selecting an ecu to process. Are 2rad and 2urad only for vehicles without idrive only?

thanks

[WilliamS]

No 2 rad I think comes with a module but I cant remember which one.

[taibanl]

2urad does bot apply to the Op. He has cappl

[Snoopy Singh]

So I thought to hell with the scope and test tones and just put in an original cd with tracks that I know well and listen at a fixed volume.

Removed $676 from vo and coded back to default. Listened to the system. Way too much bass/boom and hardly any mids or highs.

Coded back to hifi and then re-listened to the same track at same volume and could definitely hear a difference. Bass was now more detailed and not too boomy and mids and highs were now a little more obvious.

So coding has clearly worked, I just don't understand where other members are getting this 5volts on max volume from. Maybe I'm not connecting the test probes right.

[taibanl]

Originally Posted by Snoopy Singh

So I thought to hell with the scope and test tones and just put in an original cd with tracks that I know well and listen at a fixed volume.

Removed $676 from vo and coded back to default. Listened to the system. Way too much bass/boom and hardly any mids or highs.

Coded back to hifi and then re-listened to the same track at same volume and could definitely hear a difference. Bass was now more detailed and not too boomy and mids and highs were now a little more obvious.

So coding has clearly worked, I just don't understand where other members are getting this 5volts on max volume from. Maybe I'm not connecting the test probes right.

It's possible that Cappl doesn't have low level output?

[Scrippy]

If your VO reflects the options you want and you have the necessary hardware just do a SG_RESET to your modules or code in an empty PSW.MAN file. This will load no data forcing the module to query the whole system and VO will handle it for you best.

[bmw325i]

The headunit is probably clipping at max volume.