Battery + Brake (!) dash lights ON

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Apr 14, 2009 | 12:35 PM
  #1  
Hi Guys,

This issues i back on my car, just wondering if anyone has a solution

The Brake and Battery lights are lit up on my dash, they were dim but now fully solid.

Alternator is charging, 14.8 when on 12.8 when off. Any ideas?

Edit

actually anyone know how many amps the alt should be putting out?
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Apr 14, 2009 | 01:17 PM
  #2  
i believe its 110 amps
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Apr 14, 2009 | 01:42 PM
  #3  
i've always wonder what does the ( ! ) mean?
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Apr 14, 2009 | 01:47 PM
  #4  
i get that when my rims are on and i travel on the highway. after a certain amount of miles of straight driving i get the (!)

from what i was told in the past is the tps sensor. when my rims are on i get this. when i put the stockies back on, it never comes on.
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Apr 14, 2009 | 01:49 PM
  #5  
^^ thats weird because when i drive on the freeway for a while then it comes on but i have stock 18s. i heard its the tps sensor too but what cud be wrong?
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Apr 14, 2009 | 01:56 PM
  #6  
hrmm. no idea. did u try the dealer? i have no issues with my stock 17's on the car.
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Apr 14, 2009 | 02:00 PM
  #7  
110 amps, that sounds right

anyone know how to test amps for an alternator properly?
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Apr 14, 2009 | 02:24 PM
  #8  
Quote: hrmm. no idea. did u try the dealer? i have no issues with my stock 17's on the car.
maybe one of my sensors is bad
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Apr 14, 2009 | 03:39 PM
  #9  
going to do my alternator tomorrow as two dealers say that's it. Hopefully that will fix it.
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Apr 14, 2009 | 05:17 PM
  #10  
Most likely the alternator needs replacing. I believe that's Nissan's standard indicator for an alternator going bad. My Maxima did that, and I had to replace the alternator.
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Apr 14, 2009 | 05:42 PM
  #11  
does anybody know how to know if one of ur tpms sensor is bad?
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Apr 14, 2009 | 06:17 PM
  #12  
Is this a question about TPMS or alternators?


The (!) light is the early TPMS warning light. It is YELLOW in color and was later replaced with a version with the tire in the middle

The BRAKE (!)(P) light is RED and is your parking brake, low fluid and other brake issue related warning light
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Apr 14, 2009 | 06:47 PM
  #13  
brake + battery light means there is a fault in the charging system, typically caused by a bad alternator.
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Apr 14, 2009 | 07:35 PM
  #14  
Bit if you are seeing 14.8v at idle the alternator is working fine.
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Apr 14, 2009 | 10:45 PM
  #15  
that's the strange part, 14.8v is fine, but dealers says something about diode ripple. This happened a few weeks back and once a year ago. I've duplicated the battery and brake leds by pulling the 10amp alternator fuse. I;ll let you guys know when the new alternator goes in, should be thursday for sure. For now, back to driving the Audi TT
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