square hollegen head lights

[k8bloomer]

Howdy
The problem is in the headlights themselves, the standard Japanese headlights are internally wired differently than what we have available here. When you change to Canadian lights the common ground is opposite to the standard Japanese lights, this will cause a backfeed through the entire headlight system, causing dull lights and all sorts of odd symptoms.
The fix is to swap the left and right wires in the 3 connector plug in the lowbeam light plugs. Just push a very small drill bit into the slot of the connector and pull out the copper connector and swap it with the opposite one.
Leave the center wire where it is.
I just had to install lights in mine to meet compliance and found the issue, time as a Toyota mechanic wasn't wasted, they have the same problem.
John

Hey folks - zissou came over to check my highbeams-never-turn-off-once-they-are-on scenario and used what we called "JOHN'S METHOD" and switched wires on the headlight. All is working well ! And he only changed wiring on the driver side....hmmmm......anomalies......

Thanks John and all you who take the time to help out!!!! K8

[JMK]

Just for clarification, do I recall correctly that that was only an issue with the older square halogen lights and not the newer projector style? I had no such issues with mine, but in the end it didn't matter because I chose to run brand new wires out to the lights to increase current to them and thus increase the brightness, essentially building a new wiring harness anyway.

[k8bloomer]

I definitely have the older style square lights -and it looks like zissou's issues were different than mine although we have the exact same van and lights (save a few options, like he owns a dog and a karaoke) - was pretty cool to have my doppelganger parked beside me. and thanks JMK for following up throughout