engine cuts out when i break, or use any lights

[Drewpot30]

Hi
can anyone help?

I am new to caterhams and have only had mine a few weeks. Its an sv 1.8 k series engine roadsport light. I noticed a few days ago that when I braked a buzzing sound appeared(similar to the sound when you use the indicators) but it went after 10 mins or so. Then on Friday it was back but if I indicated and braked the lights buzzer sounded very quick. Then it went again. Today the buzz appeared again and when I indicated/braked the engine just died. I pulled over turned the ignition off and then restarted the car and it was fine. 2 mins later it did the same again. Then it stopped and it was fine.
None off the other electrics cause an issue just the lights.

Cheers if anyone can help. I am not very mechanical minded so need any help I can get!

[Purespeed]

I would think the reason the lights cause the problem and nothing else in just the current draw. I would check 3 areas: 1, earth on wiper motor bracket 2, earth on chassis near battery (if there is one) 3, earth on vertical chassis tube under nose cone.

Jason

[phelix]

And check the connections at the battery as well - had something similar years ago in a tin-top when the dealer installed a new battery and forgot to tighten the terminals - car started OK (??) but flashed someone to let them out and the engine died!

[Yellow 7]

There might be an earth near the wiper motor bracket. If that goes bad then you get all sorts of strange earthing problems - intermittent motor among them. Gauges can play up light switches do odd things...
Worth checking.

[Drewpot30]

Thanks for the help and advice, but no luck have sent it off to Caterham Midlands to have a luck Tried all earths, brake light switches etc.

Cheers

[Scotty996T]

Hang in there Drew. Sure they'll suss it, and sounds like a great car otherwise. Have you had yourself checked for weird electrical influence