No SOS and No AUX input

Yam_440i · 12-25-2019, 07:16 AM

Hi

This morning when I started my car I was greeted with a no SOS light on my CCC unit and dashboard. I have CCC sat nav, with usb and aux in armrest. 2007.

I have also lost access to selecting AUX input on my CCC. It's just greyed out.

I still have full radio, BMW Chimes, and all other sounds/ audio works with no problem.

Can someone please advise what's the way to resolve this?

Yam_440i · 12-25-2019, 09:06 AM

Ps. I have checked my trunk and I seem to have only a TCU unit under my trunk cover. I will order a bypass to eliminate this as a problem but should there be a MULF unit here?

Also is there anything else I can check?

My symptoms are different to others in the sense that everything else is working just apart from the AUX input.

ctuna · 12-25-2019, 11:03 AM

The mulf 2 hi which does the usb is physically under the TCU.
If you have Hi Fi sounds will continue to work with a Most Bus
module out.
Early idrive cars also have a Most Hub in the drivers kick panel.
(US driver side)

https://www.newtis.info/tisv2/a/en/

Euro configurations may differ from what we know here and
the driver side is the left side from the US perceptive.

12-25-2019, 07:16 AM	#1
Yam_440i First Lieutenant 88 Rep 352 Posts Drives: White BMW 335i convertible Join Date: Apr 2018 Location: London iTrader: (0)	No SOS and No AUX input Hi This morning when I started my car I was greeted with a no SOS light on my CCC unit and dashboard. I have CCC sat nav, with usb and aux in armrest. 2007. I have also lost access to selecting AUX input on my CCC. It's just greyed out. I still have full radio, BMW Chimes, and all other sounds/ audio works with no problem. Can someone please advise what's the way to resolve this? Last edited by Yam_440i; 12-25-2019 at 08:10 AM..
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12-25-2019, 09:06 AM	#2
Yam_440i First Lieutenant 88 Rep 352 Posts Drives: White BMW 335i convertible Join Date: Apr 2018 Location: London iTrader: (0)	Ps. I have checked my trunk and I seem to have only a TCU unit under my trunk cover. I will order a bypass to eliminate this as a problem but should there be a MULF unit here? Also is there anything else I can check? My symptoms are different to others in the sense that everything else is working just apart from the AUX input.
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12-25-2019, 11:03 AM	#3
ctuna Lieutenant General 1911 Rep 13,104 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	The mulf 2 hi which does the usb is physically under the TCU. If you have Hi Fi sounds will continue to work with a Most Bus module out. Early idrive cars also have a Most Hub in the drivers kick panel. (US driver side) https://www.newtis.info/tisv2/a/en/ Euro configurations may differ from what we know here and the driver side is the left side from the US perceptive.
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