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Author Topic: EPC Light  (Read 5177 times)

Offline CitizenKane

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EPC Light
« on: 01 February 2018, 10:57 »
Hi,

The EPC light has come on in my car, but it seems to be driving fine. I noticed it after I had the battery replaced.

Is this a common thing or anyone know what it might be? I have searched around a bit but could only find threads where the EPC light came on coupled with a loss of power or other driveability issues, which doesn't seem to be the case here.

Thanks
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Offline enyap

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Re: EPC Light
« Reply #1 on: 01 February 2018, 21:50 »
Mine comes on intermittently and the engine cuts out. I know only that it is to do with an electrical fault but not sure which circuits it is relevant to. Can't even find a reference to the warning light in the circuit diagrams. Is your's on perminantly?
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Offline itavaltalainen

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Re: EPC Light
« Reply #2 on: 03 February 2018, 13:13 »
Fault codes checked?
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Offline Mr_Orange

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Re: EPC Light
« Reply #3 on: 03 February 2018, 19:31 »
Doesn't a MAF fault do this? Totally unrelated systems but a strange quirk of the car.
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Offline bgbazz

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Re: EPC Light
« Reply #4 on: 04 February 2018, 09:59 »
A faulty/non working brake light switch can throw that light up too...check both brake lights.
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Offline CitizenKane

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Re: EPC Light
« Reply #5 on: 06 February 2018, 18:06 »
Thanks all. I haven't been able to get the fault code checked yet but I am trying to get my mechanic to do it without charging me when he has a spare moment.

I'm not sure if this is related or not, but I've also noticed that all of the console lights seem to be a bit dimmer than I remember them being. Might this be something to do with it?
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Offline bgbazz

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Re: EPC Light
« Reply #6 on: 06 February 2018, 18:29 »
That could be as simple as a bad earth connection...or an indicator of something more serious. I would start with the easy stuff first. The last time I had the dreaded light come on, followed by the "go to the workshop" warning, it was just one brakelight bulb not working as it should. Tricky little things, these VWs.  I've often wondered if the warning lights need Google Translate to get the correct message across.   :wink:
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Mk4 Golf TDI Estate 4Motion, remapped 1.9. Sweet runner = keeper. She is the 66th vehicle I've owned and hopefully, the last.

Offline CitizenKane

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Re: EPC Light
« Reply #7 on: 26 February 2018, 08:37 »
Well it turns out the brake light switch was gone. I replaced it yesterday and now both brake lights are working fine.

The EPC light is still on though. Is this just because it needs to be cleared, or should it have gone off when I replaced the brake light switch and does it mean there is something else wrong?
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Offline bgbazz

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Re: EPC Light
« Reply #8 on: 26 February 2018, 09:13 »
I would get the warning light cleared first...a simple OBD11 scanner can do that.
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Mk4 Golf TDI Estate 4Motion, remapped 1.9. Sweet runner = keeper. She is the 66th vehicle I've owned and hopefully, the last.

Offline CitizenKane

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Re: EPC Light
« Reply #9 on: 26 February 2018, 09:57 »
OK thanks. I don't own any diagnostics equipment and I've never read codes before, but I suppose this is as good a time to start as any.

Any recommendations for an OBDII reader? Or will any of them do the job?
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