Led sidelights fitted, everything lights up when braking

[l33th3tr33]

Hey all, I've fitted some led sidelights and now everything lights up when I brake, sidelights, dash, clocks, lock and rear window heater switches, headunit display brightens the lot.

Any ideas on the cause other than s**t bulbs? They're halfords own brand led sidelights. Brand new product.

 

[davo172]

Put stds back in see if still same . Can't see why I have LEDs fitted for years they shouldn't cause problems really

 

[BoatNonce]

Earth fault. Probably at the tail lights, as it's related to the brakes. Check the earth straps behind the lining inside the boot.

 

[l33th3tr33]

Will do later. Also if I keep the brake pedal pressed and take the key out the engine still runs until I release the brake pedal! This only happens when I have dipped beam on.

 

[BoatNonce]

Ooh. That shouldn't be happening.

 

[l33th3tr33]

Yeah tell me bout it! I've put the std bulbs back in and the dash doesn't light up now but the little display in the clocks and my headunit dim when using brakes. I'll have a look at the earth later and see what's what, that's if I'm not in a cell for killing my boss.

 

[sbridgey]

Wow thats very weird, I reckon MicKPM needs to get in here for this one!

 

[BoatNonce]

When you turn the key off, that should be it, no fuel pump, no spark and no fuel.

 

[l33th3tr33]

it literally runs as normal, revs as well, just cuts out as it should by turning the key but when releasing the brake pedal instead.

 

[ThomasBrentnall]

Unplug both rear light clusters. Put the leds in and see if it still does it

 

[barnesautos]

^^^^. If that is no better - try running the rear lamp earth to a fresh earth point temporarily and see if it cures it.

 

[l33th3tr33]

Unplug both rear light clusters. Put the leds in and see if it still does it

This stopped it. I found the os had a rusty connection so I cleaned it up, to no avail. The car also didn't stay running without the key while the lights were out.

 

[ben lee]

If you changed the rear sidelight bulbs sounds like you have fitted a single filement bulb instead of a twin filiment bulb.

 

[Jaff.]

That's an earth fault. And if the Clio is the same as my Megane then the fuel pump earth together with the rear clusters so your possibly back feeding the pump via the brake light.

check all the earths on the car as a first step

 

[beneccersley]

where is the rear lamp earth point please?

 

[MarcB]

I have LED side lights and LED numberplate lamp and i have none of these problems.

They have been fitted for months.

I would do as suggested above and clean / replace the earth point on the car and check the connectors of the rear light units also.