My 2004.5 didn't come with power locks from factory. I have installed actuators in all four door and everything is finally done and works great. I installed a switch in the drivers door and the actuators are triggered by a remote as well. What I am planning on doing is having the parking lights flash when the doors lock/unlock. The actuators are the two wire reverse polarity type.(one polarity causes the actuators to lock,change the polarity and they unlock.) What I intend to do is connect a relay across these wires and use the N.O. contacts to control the parking light circuit. From my research I am told that the (-) parking light wire is at the head light switch and is white/green. There are two (+) wires and they are at the wiring harness on the drivers side front fender. All the info I can find seems to assume that you are a remote start/ alarm installer and just need some vehicle specific pointers which isn't helping me a bunch. If I can understand what is going on exactly I can figure out something that will work.My questions are... first what is the headlight/parking light switch doing? Is it conecting the (-) wire to ground completing the circuit? Is this circuit for controling a relay? If these things are true I should be able to use the relay contacts I am adding to make the ground connection? Is this correct? Please advise. Thanks.

 

Without answering your question you can get the wiring diagrams by going to Dodge Bodybuilder Guide in case you didn't know that.

 

I'm assuming your normally open output from the relay is (+), correct? If that is the case run this to another relay to input 86. Connect 85 and 30 to (-) and then run output 87a to the parking light wire behind the headlight switch.

This would mean that the second relay would normally be energized until the first relay is pulsed (aka locked or unlocked). While it is normally energized 87a would get no signal, when the second relay is unenergized it would send a (-) signal to the parking light wire.

 

Well I got things working and I thought I would post what I learned in case someone else is ever looking for the same type of info. From what I could find through diagrams and later confirmed by an installer, the headlight switch does not trigger the seperate parking/relay circuits in the way one might think. When the switch is turned it connects a resistor to a wire coming from a control module and then sends back to the control module. Depending on what the control module sees (current sensing?Not sure) will determine what relays it will trigger. I ended up talking to an installer at a local stereo/remote start place and he told me what he has been doing for our trucks is splicing into the white/light green wire on the back of the head light switch which is the feed from the control module and connecting it to ground through a 2000 ohm resistor when he wants to flash the lights. I used the wires from one door lock actuator to trigger my relay. I connected everything today and it works great. Thanks to those who responded for their input.