xenons keep going off

karl210 · 10-13-2017, 05:02 PM

i have fitted genuine pre-lci xenon and angel eye headlights to my 2006 e90
I have earthed the wire that needs earthing and they worked fine for a little while. Then they would start cutting out, mainly the left one but the right one also. Sometimes they go off straight away, sometimes when i hit a bump or sometimes not atall, normally the right one goes out after the left one. I have replaced bulbs to no avail, checked wiring, wiggled it, hit them but i cant get them to cut out by doing them things.
Are these ballast failure symptoms? or is it something to do with my frm. It keeps logging short to ground and open circuit faults.
Any ideas before i put my halogens back in?
Thanks

karl210 · 10-14-2017, 03:16 AM

These are the codes. Im going to clear them, take it for a drive until a light goes out, re-read codes and check voltage supply to ballast. Im guessing if theres power to the ballast but no light on then the ballast is at fault. Just hope the frm doesnt cut the power off going to the ballast if it sees a fault.

Multifunction (Central Body - FRM (Footwell module))
DTC Description
9CBB - Short circuit fault 2
- Intermittent

9CBC - Short circuit fault 1
- Intermittent

930A - Low beam left, open short circuit
- Intermittent

930B - Low beam right, open short circuit
- Intermittent

10-13-2017, 05:02 PM	#1
karl210 New Member 1 Rep 18 Posts Drives: 325i Join Date: Apr 2017 Location: manchester iTrader: (0)	xenons keep going off i have fitted genuine pre-lci xenon and angel eye headlights to my 2006 e90 I have earthed the wire that needs earthing and they worked fine for a little while. Then they would start cutting out, mainly the left one but the right one also. Sometimes they go off straight away, sometimes when i hit a bump or sometimes not atall, normally the right one goes out after the left one. I have replaced bulbs to no avail, checked wiring, wiggled it, hit them but i cant get them to cut out by doing them things. Are these ballast failure symptoms? or is it something to do with my frm. It keeps logging short to ground and open circuit faults. Any ideas before i put my halogens back in? Thanks
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10-14-2017, 03:16 AM	#2
karl210 New Member 1 Rep 18 Posts Drives: 325i Join Date: Apr 2017 Location: manchester iTrader: (0)	These are the codes. Im going to clear them, take it for a drive until a light goes out, re-read codes and check voltage supply to ballast. Im guessing if theres power to the ballast but no light on then the ballast is at fault. Just hope the frm doesnt cut the power off going to the ballast if it sees a fault. Multifunction (Central Body - FRM (Footwell module)) DTC Description 9CBB - Short circuit fault 2 - Intermittent 9CBC - Short circuit fault 1 - Intermittent 930A - Low beam left, open short circuit - Intermittent 930B - Low beam right, open short circuit - Intermittent
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