D3 Rear indicator LEDs keep blowing

[audifin]

Back in June my left side rear indicator stopped working, too many LEDs had blown. I replaced them all and it worked fine for about 3 weeks, then they were blown again. I thought maybe I had bad batch of LEDs or something and replaced them again, but now they've stopped working again...

So I wonder if the "control PCB" is broken and is now frying the LEDs? Has anyone had similar problem?

I replaced the rear light LEDs about a year ago and have had no problems whatsoever.

[Conquistador]

When you say replaced them, do you mean opened it up and fixed it or just replaced the whole light unit?

[audifin]

I opened it and soldered new LEDs.

[Delboy]

Check the current limiting resistors on the circuit, I still have the pcbs from my old lights, the passenger side was on its way out with blown leds and the drivers side was fine IIRC.

[audifin]

Originally Posted by Delboy

Check the current limiting resistors on the circuit, I still have the pcbs from my old lights, the passenger side was on its way out with blown leds and the drivers side was fine IIRC.

Thanks Del, any advice how to check them? i.e. can I measure them on the board or do I need to remove them? From memory there are about half a dozen connected in parallel.

[Delboy]

You should be able to measure the resistance through them by connecting the multimeter on either side set to ohms hopefully they will Al be the same resistance.