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Auto headlight sensor

Posted: Thu Oct 06, 2022 3:49 pm
by razboy
OK guys, need some help. My auto headlight sensor is not working. I have been told it is located in the small black bump on top of the dashboard at the bottom of the windscreen, and also told by others that it is in the same housing as the rain sensor behind the interior mirror - car is a pre facelift 2009

Re: Auto headlight sensor

Posted: Thu Oct 06, 2022 5:48 pm
by Cuprabob
It's located on the rear of the interior rear view mirror. It's pretty obvious when you look at the rear of the mirror.

Re: Auto headlight sensor

Posted: Thu Oct 06, 2022 9:08 pm
by razboy
Thanks, so what is the small black bump on top of the dash at the bottom of the windscreen?

Re: Auto headlight sensor

Posted: Fri Oct 07, 2022 6:06 am
by spacewalker
light and rain sensor is one (2in1)
reverse mirron is holding on iton the windscreen

Re: Auto headlight sensor

Posted: Fri Oct 07, 2022 10:31 am
by Cuprabob
razboy wrote: Thu Oct 06, 2022 9:08 pm Thanks, so what is the small black bump on top of the dash at the bottom of the windscreen?
Only thing I can think of is that it contains the antenna for the receiver for the remote locking.

Re: Auto headlight sensor

Posted: Fri Oct 07, 2022 10:35 am
by Roy_01
Sunlight sensor for the AC system.

Re: Auto headlight sensor

Posted: Fri Oct 07, 2022 10:43 am
by razboy
Roy_01 wrote: Fri Oct 07, 2022 10:35 am Sunlight sensor for the AC system.
would that sunlight sensor also control the auto lights on function?

Re: Auto headlight sensor

Posted: Fri Oct 07, 2022 2:25 pm
by Roy_01
No. The rain/light sensor on the windscreen turns it on and off.
The sensor on the back of your rear view mirror is for high beam assist.

Re: Auto headlight sensor

Posted: Fri Oct 07, 2022 4:34 pm
by Cuprabob
Roy_01 wrote: Fri Oct 07, 2022 10:35 am Sunlight sensor for the AC system.
Thanks Roy, I forgot about that.