ESR error

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landyman
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ESR error

Post by landyman »

Hi,
2002 citroen c5 2.2 Hdi
the car is working well at the mo except if I hold the foot brake down for 3 or 4 seconds when stationary I get ESP/ASR fault and the brake warning light comes on. Doesn't seem to do it while I'm driving but every time if I'm stationary
I had the sticky handbrake issue (which I hoped was causing this also) so I have recently changed the handbrake cable (what a job that was) and the caliper and that's now fine but this ESP/ASR fault still persists

What do I need to look for, is it likely to be an actual problem with the brakes? Any little tests I can try to work out what's faulty?

thanks in advance

Al
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GiveMeABreak
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Re: ESR error

Post by GiveMeABreak »

You could have a faulty ABS sensor on one of the wheels that is causing an intermittent warning, or the brake switch possibly.

Getting it on a Lexia is you best bet to identify the problem area though.
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Marc
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Re: ESR error

Post by wheeler »

Are all 3 brake lights working correctly ?
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GiveMeABreak
Forum Admin Team
Posts: 36996
Joined: 15 Sep 2015, 19:38
Location: West Wales
My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow
x 5644

Re: ESR error

Post by GiveMeABreak »

Do you have the Auto box? and if so is it preventing gear selection to 'Drive' or 'Reverse' intermittently? Another member has these symptoms and changed the brake switch (despite it testing as ok) and that solved the problem - but I wouldn't start replacing parts until you have it diagnosed, just another avenue to follow.
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Marc
landyman
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Re: ESR error

Post by landyman »

thanks for the replies. I have a spare brake switch (the 3 brake lights are currently working) so I'll try replacing the other brake switch next to the one that does the lights and see if it's that - I'm suspicious of that as the problem started shortly after I replaced the brake switch when the brake lights were not working, then if that doesn't fix it I'll find someone with a lexia. It's a manual so at least it's not the auto box :)

Al.
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