Strange rear light problem

[Jinster]

I have had a few drivers coming up to me at traffic lights telling me my rear running lights aren't working at night. So I have been looking at the rear lights every time I start the car. And they always work. Then one day, I looked in a reflection of my car as I was driving, and found that the rear lights turn themselves off if I depressed the brake for more than 1 sec (the brake lights work fine, btw). Very occasionally, they would come back with further brake pedal presses, most of the time, they just stayed off (not really off, just really really dim, actually) until I reset the lights by turning the light switch off and on again. And then they would go off again soon as I pressed the brakes.

Anyone know what might be going on?

[RFM]

1) Are there bulbs replaced, if yes, with the right ones?

2) Are there modifications done on the tail light wiring? Check the wiring and the brake light switch.

3) Check the connectors, especially ground points.

There you maybe start with.

[mikefocke]

My theory is something is heating up and thus breaking a circuit. Take one side and unplug and see if the problem remains, then plug that one back in and unplug the other and see. Maybe you can isolate the problem causing side.

[Jinster]

Yeah, thanks guys. I have an old set of lights somewhere. I will plug those in one by one and see whether problem is the light or the wiring.