Version Discussed: v5.0 (as seen on first page of user manual).
Youtube: I think this video is the same sensor as this mod.
If your like me and bought a Universal Car Automatic Windshield Light/Rain Sensor off ebay and have spent the last couple of days pulling your hair out, then let me walk you through some of the things I found out and overcome them.
1. You open the manual and get confused by different installation methods coz they contridict each other.
- Completely ignore Installation (6) "Light sensor" layout because that is only for people who purchased a light sensor kit only this is the light & rain sensor kit so you need to follow those instructions even if you are only going to use just the light sensor or rain sensor part.
- For the light setup side of things use the wires found on Installation (4) for the 8 pin plug and follow the schematic on Installation (5).
- Do not use the red or black wire on the 8 pin plug, instead hookup the red and black wire from the 10 pin plug to give the box it's power and earth.
3. The White wire hooks up to the park switch, if you turn the park lights and the white wire receives a 12v signal it disables the auto light sensor until next key off and on.
4. The Grey wire feeds the blue and green wire it's power when. If you're like me and all your switches are 5V volts make sure you hook the grey wire up to to 5V and not 12V that way when the unit put power to the blue and green wires it feeds them 5V and not 12V.
5. The white wire can only operate on 12v it's doesn't work on 5v and if you do hook the white wire up to 5v the unit won't work. I used a relay with the 5v from the park light switch going to the coil side of the relay and then 12v on the switch side with white wire.
6. Despite on page 2 of the owners manual showing it, there is no light sensor adjustment either on the module circuit board or on the sensor itself. (I took some pictures of module board so you can look for yourself). The default setting for when the lights come on is actually quiet dark and I am usually always the last person on the road to turn on their lights. Looking on the manual the sensor should be on the front corner next to the plugs or at the back corner of the main unit, there is no solder areas on the circuit board even for this. At a guess, I'd say the unit has been upgraded but the manual hasn't and is for an older unit.
Here are some markings I noticed. The main unit says VNX or VHX vehicle sensor, the main unit circuit board has 20110331-2015 printed on it. The light sensor has 20130406 and KRAIN150308 or KRAIN150008 (solder joints intrupt the printing) printed on it.
