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post #6 of 9 (permalink) Old 5th June 2014
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Re: Electronic Parking Brake Fault Fixed

How long is it since the rear pads were changed, if ever??
Don't Know Lag's, the Scenic EPB is by the offside wheel.

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post #7 of 9 (permalink) Old 8th June 2014 Thread Starter
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Re: Electronic Parking Brake Fault Fixed

Hi Kevin
In my last posting I gave some tips on locating corrosion faults in the feed wire.
(Ignore the first bit about the Megane carminat tom tom stuff. That was not part of my posting. It seems that another unrelated thread became mixed up with mine!)

With regard to your problem - If the red led is lit on the manual button, power is being supplied to the EPB. You will need to check that the supply voltage at the manual control is healthy.
Mine was about 13/14V at the manual control and dropped to around 8V at the EPB.
Repeat the check at the multi-plug, of the power feed wire. (This is located under the rear seat beneath a large rubber blanking plug) If you have a voltage drop this is the probable cause of the 'Check EPB' warning. Too low power and it will refuse to operate.
Renault recommend manipulation of the wire and the connectors for fault location checks. Look for variations in the meter readings when doing this.
I have seen other postings about wire faults local to the multi plug, so perhaps this would be the best place to start your checks.
Hope this helps
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post #8 of 9 (permalink) Old 8th June 2014
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Re: Electronic Parking Brake Fault Fixed

Hi Nottnoc and Axvr, thank you both for your quick replies.
Its funny you should mention the brake pads Nottnoc, as i believe the warning started soon after having them replaced , and continued as a warning (but still worked) for a few weeks, but then has now changed to a fault and will not operate at all.....is it possible that this is related to the problem ? or coincidence ?
Axvr I found that connector you mention under the rear seat, but could only measure the DC at the supply side when I disconnected the connector, as the opposite side that goes to the module underneath is insulated so well in its housing that I can't see any point on it to measure. The voltage to the supply side seemed fine...
I even recharged the battery , just in case it was not at optimum level...but still no change...
The red led at the handle only lights for a second when I open the door as I unlock the car (not always) but then goes off and then the warning appears on dash and the audible beeping starts....
its beginning to drive me crazy
I have not been underneath the car as of yet, as I don't have any safe way of doing this.....
I'm thinking maybe there are sensors of some sort ? do these or can they be reset in any way ? or cleaned ? I'm nearly at my wits end....
Tahnks again
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post #9 of 9 (permalink) Old 9th June 2014
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Re: Electronic Parking Brake Fault Fixed

Hi again....
I spent some more time trying to figure this fault out this evening. I managed to measure the voltage after the connector under the rear seat, and it is measuring 12.20 V DC , which I suspect is satisfactory, of course this does not prove the DC voltage is going all the way to the module underneath the car. However I did notice something when I disconnected and reconnected the connector under the rear seat...
When connected , I can hear 3 distinct clicking sounds coming from underneath the car , I assume from the module , and after the 3rd click the dash then shows up the red "Stop" and "Parking Brake Fault" and the audible alarm starts to drive me crazy....
I disconnected and reconnected on several occasions and it was always the same, 3 clicks followed by the dash alarm ..... To try and explain the clicking sound , all I can say is it sounds similar to an electric fence clicking sound , if you know what I mean ... ?
So that's where I am at the minute.....getting more and more tired of it....anyways, thanks for looking and any help or advice is seriously welcome......Thanks all.
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Last edited by Kevin Ferguson; 9th June 2014 at 09:53 PM.
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brake , electronic , fault , fixed , parking

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