Thread: why right blinks faster than left?

I would suspect blown globe.

Originally Posted by Mick_Marsh

I would suspect blown globe.

X2
Yep, find the broken globe and replace

Sometimes people wrongly fit a 5W indicator globe instead of the correct 21W type and the bulb failure detector circuit then causes the fast flash.

When was the last time you topped up your blinker fluid?

Originally Posted by bee utey

Sometimes people wrongly fit a 5W indicator globe instead of the correct 21W type and the bulb failure detector circuit then causes the fast flash.

Is there a detection circuit in most cars, particularly old ones? I just thought it was the loss of resistance that caused the other bulbs to blink faster. But then, i only know enough about electrickery to hurt myself.

Originally Posted by jasonharrison

When was the last time you topped up your blinker fluid?

Hydraulic blinkers

Originally Posted by Disco-tastic

Is there a detection circuit in most cars, particularly old ones? I just thought it was the loss of resistance that caused the other bulbs to blink faster. But then, i only know enough about electrickery to hurt myself.

Electronic flasher units (usually the square plastic ones) have had this function since around 1978, it's a legal requirement. It's also why you see the odd vehicle with replacement LED indicators going gangbusters, because they don't load the flasher unit correctly. LED compatible flashers or load resistors are used in these cases to correct the flash rate. You can even refit the electronic flasher units to early model vehicles, my P76 collection all got one each way back when. You just removed the 2 pin smoke filled device and plugged in the electronic unit after adding an earth wire to the existing 3 pin socket.

Ah, but in a D2 there is no flasher unit.

The indicators are run by the BCU.

There must be some detection mechanism in it.
Regards Philip A