Dcore Posted April 25, 2014 Share Posted April 25, 2014 want to put a headlight relay into my kp starlet and Toyota have there dip switch set up through the ground from the lamps, Wondering if any one has a wiring diagram or can run me through how to wire in a relay to the circuit or does anyone know of a plug in kit Quote Link to comment Share on other sites More sharing options...
tortron Posted April 25, 2014 Share Posted April 25, 2014 http://www.danielsternlighting.com/tech/relays/relays.html has a section for you Quote Link to comment Share on other sites More sharing options...
kpr Posted April 25, 2014 Share Posted April 25, 2014 what are you trying to do? either way, relay doesn't care if ground switching or 12v+. if you are switching a negative onto coil of relay. you need constant 12v+ on other side of coil. and if switching 12v+ you need constant ground on other side of coil. Quote Link to comment Share on other sites More sharing options...
Dcore Posted April 25, 2014 Author Share Posted April 25, 2014 this part was helpful, no diagrams tho if anyone knows of any: SPECIAL CONSIDERATIONS FOR GROUND-SWITCHED SYSTEMS Many Japanese vehicles, as well as a few others, use a "ground-switched" headlamp circuit. In these circuits, the headlamp and beam selector switch break or complete the ground side of the headlamp circuit, rather than the feed side. On these systems, it's imperative to use both negative and positive existing headlamp wires to trigger the relays. It is tempting to run the existing headlamp feed wire to relay terminal 86 (trigger feed) and simply find a convenient ground for relay terminal 85 (trigger ground). However, this will not work with ground-switched systems. Run the vehicle's existing feed wire to terminal 86, and run the vehicle's existing ground wire to terminal85. Now, what are we going to do now that we've used-up our one and only ground wire on the 85 terminal of the low beam relay, but we still have to install the high beam relay? Go to the other side of the car and you have another ground wire! Remember, the relay trigger circuits can be as long as you like, because they take insignificant power. So, you can extend the vehicle's existing headlamp wires to your relay mounting location. It is fine to use this method regardless of whether you have a ground-switched system or not, so go ahead and use it if you're not sure. Quote Link to comment Share on other sites More sharing options...
tortron Posted April 25, 2014 Share Posted April 25, 2014 http://www.4wdaction.com.au/_phpBB/download/file.php?id=84416&mode=view Quote Link to comment Share on other sites More sharing options...
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