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**dmjlambert** · 07-08-2020, 08:41 AM

Richard pointed out that the headlight circuit and turn signal circuit are connected by the side markers. I suggest disconnect or remove the bulbs from the front side markers and see if the behavior changes. If the problem is resolved then you can try some incandescent bulbs in that position.

07-08-2020, 08:41 AM	#13
dmjlambert Senior Member Join Date: Apr 2016 Location: Cypress, TX Posts: 3,563	Re: LED tail light signals will not flash when lights are on Richard pointed out that the headlight circuit and turn signal circuit are connected by the side markers. I suggest disconnect or remove the bulbs from the front side markers and see if the behavior changes. If the problem is resolved then you can try some incandescent bulbs in that position.