Help S5 2008 P0571 Brake Switch A Implausible Signal New Switch, Bulbs, Fuses NO FIX - Audi A5 Forum & Audi S5 Forum
 
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post #1 of 3 Old 15th April 2019, 01:19 PM Thread Starter
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Exclamation Help S5 2008 P0571 Brake Switch A Implausible Signal New Switch, Bulbs, Fuses NO FIX

So my car had the EPC light come on so I scanned it with my OBDEleven scanner and came up with the following error.

P0571 - Brake Switch A, Implausible Signal

Subsequently I replaced the switch with a generic part and cleared the codes. The Light came back on in hours and agin the OBDEleven came up with P0571 - Brake Switch A, Implausible Signal

At this time I checked all fuses and used a multimeter to check continuity, lastly I returned the switch and replaced it with a Genuine Audi/VW part from my local dealer.

Sadly the EPC light came back on... At this time I replaced all the fuses with new verified good fuses and replaced all brake lights with new bulbs. This is not working.

Does anyone have any additional suggestions? I have spent hours Googling this looking for a similar situation and eventual fix but have yet to find one.

Thanks....
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post #2 of 3 Old 17th April 2019, 06:39 AM Thread Starter
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Anyone have any suggestions? Cheers
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post #3 of 3 Old 17th April 2019, 09:42 AM Thread Starter
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Today a different code came up and the car is no longer showing P0571

00526 - Brake light switch Implausible signal
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