IS200/300 head unit illumination/dimming
IS200/300 head unit illumination/dimming
You don't need to connect this up at all, but here's a brief guide if you want to do it.
On the picture below, you can see the amp bypass lead already connected in my car (with two connectors, a black one and a brown one). The OEM connector that used to plug into the OEM head unit is the white one with lots of wires going into it. You should be able to see an orange wire coming off the black bypass lead connector. This orange wire is the illumination wire, and the bypass lead that I bought had a scotchlock connector on the end already :
![[Image: IMG_2451.jpg]](http://i5.photobucket.com/albums/y179/SteveHammatt/IMG_2451.jpg)
You can check out the wiring diagrams in the online manual to see which wire you need to tap into for illumination (look under "Electrical Wiring Diagram", then "System Circuits", then "Illumination". My car is a 1999 Sport model (with amp, 8-speaker system), and on mine it's a green wire that goes into pin 2 of the white OEM connector. Beware though, there is more than one green wire (on mine at least), so make sure you pick the right one ! In the picture below is it the green wire second from left, next to the red one :
![[Image: IMG_2454.jpg]](http://i5.photobucket.com/albums/y179/SteveHammatt/IMG_2454.jpg)
Now you need to connect the orange wire from the bypass lead into this green OEM wire. I used the scotchlock that came with my bypass lead, and here it is connected :
![[Image: IMG_2458-1.jpg]](http://i5.photobucket.com/albums/y179/SteveHammatt/IMG_2458-1.jpg)
To finish off the wire, and unconnected with the dimming, here's another picture, showing where I've connected power for the aerial amplifier (blue lead on the amp bypass cable, connecting to the black wire that runs alongside the main aerial wire), after cutting off the OEM white connector on this black wire :
![[Image: IMG_2463.jpg]](http://i5.photobucket.com/albums/y179/SteveHammatt/IMG_2463.jpg)
![[Image: Sig-enginebay.jpg]](http://i5.photobucket.com/albums/y179/SteveHammatt/Sig-enginebay.jpg)
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
steviewevie
25-06-2016, 01:31 AM #1When I installed my new head unit, I saw that it had a dimming feature. A lot of head units have this, though not all. To use this feature on mine, it needs switching on in the head unit menus (default is off). With the dimming function active and connected up, when I turn the lights on, the head unit illumination automatically dims.
You don't need to connect this up at all, but here's a brief guide if you want to do it.
On the picture below, you can see the amp bypass lead already connected in my car (with two connectors, a black one and a brown one). The OEM connector that used to plug into the OEM head unit is the white one with lots of wires going into it. You should be able to see an orange wire coming off the black bypass lead connector. This orange wire is the illumination wire, and the bypass lead that I bought had a scotchlock connector on the end already :
You can check out the wiring diagrams in the online manual to see which wire you need to tap into for illumination (look under "Electrical Wiring Diagram", then "System Circuits", then "Illumination". My car is a 1999 Sport model (with amp, 8-speaker system), and on mine it's a green wire that goes into pin 2 of the white OEM connector. Beware though, there is more than one green wire (on mine at least), so make sure you pick the right one ! In the picture below is it the green wire second from left, next to the red one :
Now you need to connect the orange wire from the bypass lead into this green OEM wire. I used the scotchlock that came with my bypass lead, and here it is connected :
To finish off the wire, and unconnected with the dimming, here's another picture, showing where I've connected power for the aerial amplifier (blue lead on the amp bypass cable, connecting to the black wire that runs alongside the main aerial wire), after cutting off the OEM white connector on this black wire :
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
Chris Talking of dimming, i always used to notice on my last IS that when the hazzard lights or indicators were on the radio display back light used to flicker in time to the flash of the light.I haven't noticed it, but will keep an eye out for it the next time I'm out in the Lex at night.
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
steviewevie
25-06-2016, 02:51 AM #3Chris Talking of dimming, i always used to notice on my last IS that when the hazzard lights or indicators were on the radio display back light used to flicker in time to the flash of the light.I haven't noticed it, but will keep an eye out for it the next time I'm out in the Lex at night.
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
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