high beam wire

[hl2011hid]

I have 2011 highlander which has separate low and high beam.
I plan on retrofitting bi-xenon projector into either low or high beam slot. I cannot find the high beam wire. I need that wire to connect to solenoid. Anybody can offer some help or hint?

[sweeneyp]

Originally Posted by hl2011hid

I have 2011 highlander which has separate low and high beam.
I plan on retrofitting bi-xenon projector into either low or high beam slot. I cannot find the high beam wire. I need that wire to connect to solenoid. Anybody can offer some help or hint?

shouldn't it be hanging right off the back of the high-beam bulb outside of the housing??? The back of the bulbs are exposed on the back of the headlight housing. it there is wrapping around the wires on the socket just undo it to get to them
pic form ebay:

its the inside bulb

and to Toyota Nation!

[guytdt]

I don't see it at all. The high beam has only 2 wires (1 positive wire and 1 negative wire). Looking for the wire that really turns on the high beam. I cannot use these 2 wires since it always has current due to DRL and will turn my solenoid on all the time. Same as OP I also investigate this too. I tried to put MH1 bi-xenon into my high beam but because of this I have to take it out.

[sweeneyp]

OH i see what your saying now, like in the light stalk, the high beam activation wire. His post had me confused. Would the solenoid getting volts all the time hurt it? Like have it activated all the time? (only during day time when you turn on the headlights the solenoid would disengage) . I'll look throgh the TIS documents i have to see if there is some relay, otherwise you might have to tap into the steering column light stalk to get that signal.

[guytdt]

Originally Posted by sweeneyp

OH i see what your saying now, like in the light stalk, the high beam activation wire. His post had me confused. Would the solenoid getting volts all the time hurt it? Like have it activated all the time? (only during day time when you turn on the headlights the solenoid would disengage) . I'll look throgh the TIS documents i have to see if there is some relay, otherwise you might have to tap into the steering column light stalk to get that signal.

Thanks a lot, sweeneyp

[sweeneyp]

Sorry it took awhile, I got real busy here. Well I don't have any schematics for the 2011+ years since their relay/DRL system changed from the 08-10 models. But I do have the pin layout for the light control switch in the steering column.

Below is for an 08, I don't know if this will work with a 2011 or not, but its a start. You could take a multimeter and test for voltage when you activate the high beam on the socket. This layout is for the light stalk (before you get to headlight relay's and DRL relay's), you have to take the steering column cover off (really easy, 2 screws behind the steering wheel to the left and right. Just turn the steering wheel till you see one - unscrew it, then turn again and get the other. After that the covers will pop off.)

for starters you would have to feed this into a relay to power the solenoid as the current is likely to be very small (the wires are absolutely tiny, like 22-24+ gauge). It looks like you would have to tap two wires. If you just tap 11, you will get high-beam, but lose the flashing ability, but if you tap 17 you can flash but no constant high-beam (the constant high-beam by pushing forward vs short by pulling back). So if you tap 11 and 17 you should retain full highbeam function. But again this is for an 08 and I could be wrong, test with a multimeter before you do anything.



good luck

[hl2011hid]

Thank you for the diagram. Unfortunately, it looks too difficult to run the wire from inside under steering column all the way to the headlight. I guess there should be a wire or two out there in the engine bay? or some kind of high beam relay?
Anybody having the one for 2011-2012 (headlight diagram), please share!