C5 2.0HDI (04) Brakelight switch problem

[nickim123]

My engine management light came on with a anti pollution fault, had the car put on computer by local garage (not dealer) and it said brake light switch problem (what this has to do with anti pollution i don't no) so we changed the switch, ok for a couple of days then comes on again, computer still says same problem, every time we clear the fault it comes back within a few miles, has anyone experienced the same or any suggestions

[kenhall1202]

This might be relevant. The brake switch (which is located in the passenger side footwell ) on my 2005 C4 has had similar recurring problems. The solution from Citroen is to fit a new switch together with a new short section of wiring loom which I believe has resistor(s) built into it. These come as a kit which I bought from eBay - see http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... 1525533197" onclick="window.open(this.href);return false;

[nickim123]

Thanks Ken, i spoke to Citroen and gave them my reg and they say there is not this modification for my car.