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Hello everyone,
I have recently installed daytime running lights on my car by making simple circuit using relay and connecting power to ignition, so lights go on when turn key and go off when I turn on side lights. Everything worked fine. Now I want to modify my circuit so my DRL's would go on when I unlock the car and stay on until I turn sidelights on. I have used two relays in this case, but I'm getting problem with back feed. When unlocking the car my blowers and radio go on, which should normally go when turn ignition on.
this is my original first circuit,
this is new circuit. Could you let me know what to do to stop back feed, I have tried already to put diodes in several places, but with no luck. I also noticed that even when interior lights go off there is still 12v in positive wire. Negative wire has -12v. Is there any other way of designing circuit to do the same thing please? I have basic electrical knowledge, therefore don't know the tricks
Please help, as I really like to make it and I spent so much time trying to do it with no luck
I have recently installed daytime running lights on my car by making simple circuit using relay and connecting power to ignition, so lights go on when turn key and go off when I turn on side lights. Everything worked fine. Now I want to modify my circuit so my DRL's would go on when I unlock the car and stay on until I turn sidelights on. I have used two relays in this case, but I'm getting problem with back feed. When unlocking the car my blowers and radio go on, which should normally go when turn ignition on.
this is my original first circuit,
this is new circuit. Could you let me know what to do to stop back feed, I have tried already to put diodes in several places, but with no luck. I also noticed that even when interior lights go off there is still 12v in positive wire. Negative wire has -12v. Is there any other way of designing circuit to do the same thing please? I have basic electrical knowledge, therefore don't know the tricks
Please help, as I really like to make it and I spent so much time trying to do it with no luck 
