I'm chasing an elect ghost on my 72 MB 280se that won't allow my turn signals or highbeam flash to operate. I've tried a new switch, same issue, the brights work with headlights on, the parking lamps/trnsgnl work but no signal flash. Could you advise or direct me please, I've been searching the web, studying the schematic and I'm perplexed.

I appreciate your time and guidance, thank you,

David