Help! Traction, abs, brake. Air conditioning won't work and turn signals

Stephenj007 · 06-03-2018, 04:14 PM

Hello, I recently installed a subwoofer in my car and had to power it to the battery and the fuse box. However, after wiring it all up. The car air conditioner won't blow air, the turn signals don't turn off automatically and the traction lights are on as if there is a bad abs sensor. Idk what to do, I unplugged the battery while installing the sub with built in amp. I had to also remove the trunk lining to run the cord through. What did i mess up?

Bimmer Pleaser · 06-04-2018, 01:47 PM

Did try disconnecting thr subs? BMW electronics hate voltage fluctuations. What is your voltage when engine off and when on?

e90yyc · 06-04-2018, 03:11 PM

Pull the fuse from amp, get a baseline, and then go from there.

Another possibility is that your car is having an allergic reaction to the subwoofer, similar to when a human body rejects a transplant. The likelihood of this depends on how large the sub is, and what genre of music is usually playing through it.

06-03-2018, 04:14 PM	#1
Stephenj007 Private First Class 20 Rep 146 Posts Drives: 2008 328i Metallic Silver Join Date: Jun 2018 Location: York, Pa iTrader: (0)	Help! Traction, abs, brake. Air conditioning won't work and turn signals Hello, I recently installed a subwoofer in my car and had to power it to the battery and the fuse box. However, after wiring it all up. The car air conditioner won't blow air, the turn signals don't turn off automatically and the traction lights are on as if there is a bad abs sensor. Idk what to do, I unplugged the battery while installing the sub with built in amp. I had to also remove the trunk lining to run the cord through. What did i mess up?
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06-04-2018, 01:47 PM	#2
Bimmer Pleaser First Lieutenant 205 Rep 349 Posts Drives: nothing Join Date: Jan 2017 Location: Pike Place iTrader: (0)	Did try disconnecting thr subs? BMW electronics hate voltage fluctuations. What is your voltage when engine off and when on?
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06-04-2018, 03:11 PM	#3
e90yyc Art Collector 2425 Rep 3,448 Posts Drives: 2007 328xi (GM-delete 6MT) Join Date: Feb 2018 Location: Canada iTrader: (0)	Pull the fuse from amp, get a baseline, and then go from there. Another possibility is that your car is having an allergic reaction to the subwoofer, similar to when a human body rejects a transplant. The likelihood of this depends on how large the sub is, and what genre of music is usually playing through it.
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