Heeeelp lots of error code

R

Roger Holdorf

Member
 Norway
Hi
Is there someone who nows what my trouble can be. Look at all those error codes in att doc. It started with air bag light went on and off when I was driving. Then the turn signal worked outside but inside sometime worked and sometime would not stop, but outside was ok. When I used full head light the blue light inside did not turn off when I turned off. They also ok outside but not the blue light insideerror s.2.jpgError s.1.jpg[url][/url]
 
Concur.
Battery looks like it's given up.

Should be around 12v at rest and holding 14v idling.
 
Chris_D said:
Concur.
Battery looks like it's given up.

Should be around 12v at rest and holding 14v idling.
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You want around 12.7v at rest, 12v would mean it’s around 50% discharged :o
Rob
 
Smartbear said:
Chris_D said:
Concur.
Battery looks like it's given up.

Should be around 12v at rest and holding 14v idling.
Click to expand...

You want around 12.7v at rest, 12v would mean it’s around 50% discharged :o
Rob
Click to expand...
Ah, you're just a battery half empty kind of guy. :wink:
 
Could be battery for sure but I’d err my bets on CANBUS corruption due to corrosion on airbag control module. OP - if you search ‘airbag control module’ you will understand.
 
The battery is 2 months AGM 80 amp. I have changed turnsignal switch and looked at headlight switch non visible damage. I have charged battery but no change. I measured 14,8V on battery when engine running.
 
Roger Holdorf said:
The battery is 2 months AGM 80 amp. I have changed turnsignal switch and looked at headlight switch non visible damage. I have charged battery but no change. I measured 14,8V on battery when engine running.
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That just proves the charging system’s working ok, what voltage does the battery hold when it’s been sitting for a while?
Rob
 
Roger Holdorf said:
Just a moment I will go out and measure 12,65V
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See ph001 comments above on airbag control module then, he knows electrical systems on these cars better than most so worth following his advice
 
Roger Holdorf said:
Okay Thank you. I will change battery today
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Change? Or charge?
If it's two months old and you can check it's held a charge overnight, then maybe you should look more at [ref]ph001[/ref]'s post before you decide to change the battery?
 
Changed battery. But it did not help. I sae another thing. My alternator give 14.8, 14,7 and 14,6V it never go lower and also when I stop the car the voltage fall to 12,3V after only 10 minutes when all electrical components are switched off. And when I connect battery I get a big splash which mean that the car use much electrisity even when everything is off and closed. My BMW dealer guess that the headlight switch must be damaged. But they want USD 800 for changing it and can not garanti that it is somthing wrong with it.
 
At last. The case was that I had a head unit which the wire to Ibus could not be connected. Took it away and now everything is perfeckt :D
 
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