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PSM & ABS light (no LED's)

 
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Old 08-24-2012, 11:53 AM
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Angry PSM & ABS light (no LED's)

Heya,
So I am hoping someone can offer some insight here... I have a 2000 996 C4 coupe tiptronic. In the last week my ABS & PSM lights will come on. I do not have LED tails installed (or anywhere else actually), it does not happen when I hit the brake, it only happens when I turn on my running lights (first position on the switch). My MAF is good, the car throws no codes whatsoever, and when I restart the car the lights turn off. If I drive with them on my cruise control does not work either. Through searching I have seen that it could be a bad brake switch, but that will trigger when you engage the brakes. LED tails or some other LED item, or a bad MAF. I have none of these things. I am wondering if maybe it is a fuse? the only thing is the lights and such do work. Any help or ideas would be appreciated
Thanks much
 
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Old 08-24-2012, 12:57 PM
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ECS Tuning - Porsche has a reputation beyond reputeECS Tuning - Porsche has a reputation beyond reputeECS Tuning - Porsche has a reputation beyond reputeECS Tuning - Porsche has a reputation beyond reputeECS Tuning - Porsche has a reputation beyond reputeECS Tuning - Porsche has a reputation beyond reputeECS Tuning - Porsche has a reputation beyond reputeECS Tuning - Porsche has a reputation beyond reputeECS Tuning - Porsche has a reputation beyond reputeECS Tuning - Porsche has a reputation beyond reputeECS Tuning - Porsche has a reputation beyond repute
From the symptoms you provided it sounds like a faulty brake light switch. This switch can be the source of many problems, including inoperative cruise control, brake lights not coming on, or brake lights staying on all the time.
 
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Old 08-25-2012, 09:28 AM
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Thanks,
I did replace the brake switch as well as the MAF just to eliminate those possibilities.
Same symtoms....
PSM & ABS lights appear as soon as I turn on running lights. I can hit the brake lights all day long and no failures.
Cruise control also will not work in this state. I checked every fuse (all of them yes) and all seem ok.
I have searched and searched on this site and many others and have not found anything else. Does anyone have any other ideas other than my car is haunted ?
 
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Old 08-26-2012, 01:27 PM
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Solved thanks
 
 
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