problemchild said:
... When i fluke the wires it looks like the positive to the low beam is cutting out when h. beams are on.
Does anyone know how to bypass the h. beam relay shutting off the L. beam relay?
I read on another forum that this was an easy wire jump (no expensive wire harness mod $$$).
Dittos to the previous suggestions to use the JK or CasperElectronics harness…
Another option (as previously suggested by OC Dmax) is the
PainlessPerformance high beam relay kit. This one just turns on the high and low beams without replacing the OEM wiring.
One possible DIY method is to add a diode between the input sides of the High and Low beam relays. Wire the diode with the arrow symbol pointing to the low beam relay. This will allow the Low beam relay to come on with the High, but prevent the high beam from coming on with the low. Since there are 4 relays, one for each lamp, you need two diodes (relays are located in the engine compartment fuse box - there is also a fuse in series with each lamp). Be sure to get a high voltage diode that can take the potential back EMF from the relay coil. I haven’t tried this but in theory it should work. It’s the same principal that the JK & Casper Electronics harness’ use except that they add a second set of relays that are driven by the OEM relays via the head lamp connectors. On these setups there is one diode between one set of relays (high and low) that drive both sets of lamps. I’m currently working on a harness that’s similar to the JK/Casper but will also turn on the Fog Lamps when the Highs are on. (I’m not saving any money but I am having a little fun). The best, easiest, and most economical way to go is the JK or Casper.