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  #1  
Old 09-16-2018, 08:01 PM
csmax csmax is offline
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ABS, Brake, DSC Warning Lamps Illuminated

After sitting for a week these 3 codes (yellow) popped up.
What could cause this after sitting?
2007 3.0si
Thanks
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  #2  
Old 09-16-2018, 08:57 PM
Looking-2-win Looking-2-win is offline
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Quote:
Originally Posted by csmax View Post
After sitting for a week these 3 codes (yellow) popped up.
What could cause this after sitting?
2007 3.0si
Thanks
Yes, that's the DSC...

"The Dynamic Stability Control DSC
indicator lamp and yellow brake
warning lamp for Dynamic Brake
Control DBC light up continuously:
Dynamic Stability Control DSC,
Dynamic Traction Control DTC and
Dynamic Brake Control DBC are malfunctioning."

My 2003 Z4, (every once in a while) has those lights come on. Sometimes after I'm driving around town on a short trip (stop & go) and some times when I first start the car. When I turn off the car & restart they don't come back on. It can be weeks or months between the times they come back on. There isn't any rhyme or reason to it and I don't notice any ill-effects so I haven't spent the money for a dealership to trace-down the problem.
This doesn't help you resolve the problem just letting you know it isn't a rare occurrence.
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Old 09-17-2018, 06:03 AM
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Battery!
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Old 09-17-2018, 06:30 AM
wifesauto wifesauto is offline
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do they go out after a short drive.......and how old is the battery ?
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Old 09-17-2018, 07:29 AM
csmax csmax is offline
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Originally Posted by wifesauto View Post
do they go out after a short drive.......and how old is the battery ?
5 Years (AGM) on and off charger/maintainer
No, they do not go off after driving.
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Old 09-17-2018, 07:54 AM
wifesauto wifesauto is offline
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scan tool time
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Old 09-17-2018, 08:53 AM
fauxauditor fauxauditor is offline
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Quote:
Originally Posted by wifesauto View Post
do they go out after a short drive.......and how old is the battery ?


Almost always a battery problem...


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Old 09-18-2018, 12:26 PM
joelselman joelselman is offline
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I would check voltage, battery and alternator, then read codes, then replace/overhaul abs controller. My '01 E38 (not SURE they're the same systems) lit the same lights and showed bad front wheel speed sensors erratically and one side then the other. Finally had the ABS controller rebuilt.
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  #9  
Old 09-19-2018, 10:14 AM
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dc_wright dc_wright is online now
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The E85 electronics are very finicky about supply voltage. Doesn't take much of a voltage glitch to get one of the micro controllers unhappy. Try disconnecting the battery for about 30 minutes, then reconnect and see if you still get the warning lamps. Disconnecting the battery for that long assures all the computers and micro controllers do a full reboot and reload of their firmware. Sometimes that's all it takes to clear this.


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Old 09-22-2018, 06:25 AM
Luke17 Luke17 is offline
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Quote:
Originally Posted by dc_wright View Post
The E85 electronics are very finicky about supply voltage. Doesn't take much of a voltage glitch to get one of the micro controllers unhappy. Try disconnecting the battery for about 30 minutes, then reconnect and see if you still get the warning lamps. Disconnecting the battery for that long assures all the computers and micro controllers do a full reboot and reload of their firmware. Sometimes that's all it takes to clear this.


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dc-wright, WOW, yesterday I went to my independent Bimmer guy, and he said precisely tge same thing as you said regarding the finicky E85 electronics, ( I just had my battery, voltage, and alternator checked out..all good.)
I know this might sound inane but...when you disconnect the battery, for the reboot, do you disconnect both of the terminals or just one?
Thanks,
Luke.

Last edited by Luke17; 09-22-2018 at 06:29 AM.
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Old 09-22-2018, 11:40 AM
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Quote:
Originally Posted by Luke17 View Post
dc-wright, WOW, yesterday I went to my independent Bimmer guy, and he said precisely tge same thing as you said regarding the finicky E85 electronics, ( I just had my battery, voltage, and alternator checked out..all good.)
I know this might sound inane but...when you disconnect the battery, for the reboot, do you disconnect both of the terminals or just one?
Thanks,
Luke.
Just the positive is all that's required.
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Old 09-22-2018, 12:21 PM
Luke17 Luke17 is offline
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Just the positive is all that's required.
Thanks Podnah...very much appreciated.
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  #13  
Old 09-22-2018, 05:10 PM
z4mepp z4mepp is offline
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similar with the ABS system. several locations alerting, pillars and passenger seat. removed and wiggled the connectors. all good ever since.

wondering is there such a thing as a canned corrosion contact cleaner that doesn't eat plastic?
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Old 09-22-2018, 07:12 PM
csmax csmax is offline
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Disconnected battery charged it, reconnected lights still there. 2nd drive cycle lights gone.
Removed 5 year old H6 agm battery replaced with new H6 agm so far so good.

Thanks for the replies.
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Old 09-23-2018, 06:40 AM
Luke17 Luke17 is offline
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Originally Posted by csmax View Post
Disconnected battery charged it, reconnected lights still there. 2nd drive cycle lights gone.
Removed 5 year old H6 agm battery replaced with new H6 agm so far so good.

Thanks for the replies.
Good news, thanks for the sit rep.
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  #16  
Old 10-13-2018, 08:14 AM
csmax csmax is offline
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New battery did not help
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Old 10-13-2018, 10:36 AM
Looking-2-win Looking-2-win is offline
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After having this issue off & on over a year I just found what most likely was causing my problem... After a couple of weeks sitting in the garage it wouldn't turn over. I figured my battery & took it in to charge & test for dead cells or whatever. Result battery was good so I put it back in & drove to the parts store for an alternator test. Test showed the alternator's voltage regulator wasn't putting out correctly. Seeing I don't know how old the alternator is I figured that I was going to be pulling it out for the regulator I'd replace 3 things at once.
After pricing the stuff at the parts store I found them online at much better prices (all new of course). So I ordered the alternator, alternator regulator & Belt Tensioner Idler Pulley.

When it comes in & I install it all I should have this DSC warning light thing resolved.
( I hope)
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  #18  
Old 04-29-2019, 08:09 PM
csmax csmax is offline
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Dealer wants $4000 to replace dcs controller and bleed system.
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Old 04-29-2019, 09:23 PM
Looking-2-win Looking-2-win is offline
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Ouch !!
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  #20  
Old 04-30-2019, 10:34 PM
nxs0152 nxs0152 is offline
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$4000!!!

I thought the warning lights went away on the 2nd drive cycle after you disconnected the battery?
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Old 05-01-2019, 09:15 PM
Andyz4 Andyz4 is offline
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For anyone who has to replace their alternator, make sure to check your oil filter housing gasket while youre in there. If it is leaking I believe your new alternator may suffer the same fate. My battery light came on at a track event a couple weekends ago, and I was forced to McGyver a pair of jumper cables and the biggest marine battery Walmart sells to get home (90 mi away). It was only later when I removed the dead alternator that I discovered its underside was practically dripping with nasty oil, and the almost imperceptible leak from the filter housing above it. All good now, and the owner a bit wiser for the experience.
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Old 06-05-2019, 05:59 AM
csmax csmax is offline
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Originally Posted by nxs0152 View Post
$4000!!!

I thought the warning lights went away on the 2nd drive cycle after you disconnected the battery?
No.
2 scenarios-
after about 12 miles they they will come on
2nd or 3rd start

if I disconnect battery and let sit for a few hours it will clear
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  #23  
Old 06-05-2019, 06:28 AM
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Originally Posted by csmax View Post
No.
2 scenarios-
after about 12 miles they they will come on
2nd or 3rd start

if I disconnect battery and let sit for a few hours it will clear
That does sound like a failed or failing alternator.
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  #24  
Old 06-13-2019, 06:49 AM
csmax csmax is offline
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That does sound like a failed or failing alternator.
Dealer plugged it in said it was control module and pump, no mention of alternator
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  #25  
Old 07-15-2019, 06:10 PM
dwmmlm dwmmlm is offline
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I have the same lights display occasionally. Scan shows DSC-ABS Pressure Sensor failure. I am replacing both this week and we'll see what happens. Easy job.
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