wwest

Just got added to my 01 AWD RX300.

For those with RX300 shop manuals.

Parts required:
1. Zettler minature "dip" relay P/N AZ830-2C-12DSE
2. 2k ohm 1/4 resister
3. 1N4007 diode

The N.O. relay contacts when closed "shunt" the 2k resistor across the rear axle heighth sensor between it's output (green/yellow, pin 18) and it's reference voltage input (black/orange, pin 20). Pin numbers are on the headlight beam level control ECU connector mounted on the firewall just above your right toe when braking.

Relay coil with parallel diode is connected between highbeam combination switch (C17) and 12 volt battery source. Anode side of diode to connector IE1, (light green/red wire) and emitter side to pin 14 (red/white wire) of "level" ECU connector.

Internal headlamp assembly will now move upwards about one degree, ~4" at 20 feet, with highbeams on. Since Highbeams also move with lowbeam HIDs you will need to adjust the highbeams, only, back down about one degree.

mooretorque

Way to go, Willard!!!! How well does it work, i.e. what sort of pattern are you getting?? Too much spread, given different projected pattern of the low beam??

Two thumbs up, either way!!

wwest

moments ago, still daylight. 1 degree parameter was "copied" from the Porsche 996 so hopefully coverage and spread will be okay.

lance_888

post pics.