Ambient Light Sensor?
#1
#2
There was a recent thread around rear view mirror issues:
https://www.jaguarforums.com/forum/x...ht=rear+mirror
See Keith Westra's post No 11 for photos of the sensor and connector.
Graham
#3
That post mostly shows the rain sensor. The light sensor is on the rear of the mirror itself.
I will post this picture as you can somewhat see it. The light sensor is in the hole on the left side of the picture, near the mounting point. The dial in the center adjusts how dark it has to be before the lights turn on.
I'm not sure of any way to remove it from the mirror and I don't know if you can get an aftermarket mirror with a light sensor or not.
I will post this picture as you can somewhat see it. The light sensor is in the hole on the left side of the picture, near the mounting point. The dial in the center adjusts how dark it has to be before the lights turn on.
I'm not sure of any way to remove it from the mirror and I don't know if you can get an aftermarket mirror with a light sensor or not.
#4
#5
mark
#6
I was just washing mine today and thought I saw the ambient light sensor on the back of the mirror mount....an irregular rectangle shape with an open depression.....or is it somewhere else...on top of the dash for instance?
My auto on lights don't seem to work, I turn the steering wheel knob behind the steering wheel to auto but still have to turn the lights on with the light stalk control.
Not a big deal...and no doubt I am doing something wrong....I really should read the whole manual one of these days......
cheers,
jj
My auto on lights don't seem to work, I turn the steering wheel knob behind the steering wheel to auto but still have to turn the lights on with the light stalk control.
Not a big deal...and no doubt I am doing something wrong....I really should read the whole manual one of these days......
cheers,
jj
#7
Originally Posted by jamjax
I was just washing mine today and thought I saw the ambient light sensor on the back of the mirror mount....an irregular rectangle shape with an open depression.....or is it somewhere else...on top of the dash for instance?
My auto on lights don't seem to work, I turn the steering wheel knob behind the steering wheel to auto but still have to turn the lights on with the light stalk control.
Not a big deal...and no doubt I am doing something wrong....I really should read the whole manual one of these days......
cheers,
jj
My auto on lights don't seem to work, I turn the steering wheel knob behind the steering wheel to auto but still have to turn the lights on with the light stalk control.
Not a big deal...and no doubt I am doing something wrong....I really should read the whole manual one of these days......
cheers,
jj
Last edited by K.Westra; 03-07-2012 at 03:09 PM.
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jamjax (03-08-2012)
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#8
Mark, Since you are going to be doing some wiring anyway, I wonder if something like this would work for you:
LAND ROVER P38 AUTO HEADLIGHT HEADLAMP SUN LIGHT SENSOR | eBay
LAND ROVER P38 AUTO HEADLIGHT HEADLAMP SUN LIGHT SENSOR | eBay
#9
Mark, Since you are going to be doing some wiring anyway, I wonder if something like this would work for you:
LAND ROVER P38 AUTO HEADLIGHT HEADLAMP SUN LIGHT SENSOR | eBay
LAND ROVER P38 AUTO HEADLIGHT HEADLAMP SUN LIGHT SENSOR | eBay
Mark
#11
There is also a knob on the back of the mirror to adjust how dark it has to be before the lights come on. I keep mine set at the brightest level so my lights come on as soon as possible and its just about perfect for me.
#12
#13
Thanks
#14
The design has been changed on the 4.2's. No knob on the mirror now and a much bulkier pack for the ambient and rain sensors, masked by a shaded area on the windscreen:
Attachment 17565
The marks are rain on the screen - not on the seats!
Graham
Great photo that is it exactly.
So on the 4.2's you have to adjust the auto on for the lights exactly how???
cheers,
jj
#15
jj,
There's no adjustment available on the 4.2's, it's now a 'predetermined level'.
Just set the rotary collar on the light switch to AUTO. When the light fades to the predetermined level Jaguar have decided justifies lights, sidelights and headlights automatically switch on and the sidelight icon in the instrument panel illuminates. As it gets lighter, the lights automatically switch off again. Recommendation is to leave the switch in AUTO but you can always override it using the rotary switch.
Graham
The following users liked this post:
jamjax (03-09-2012)
#16
I have looked at mine but don't see any indication as to which way makes the lights come on when it is lighter out. Which way does the knob need to be turned? Lights are working fine but like you I would like them to come on as early as possible when it is lighter out.
Thanks
Thanks
#17
Keith,
The design has been changed on the 4.2's. No knob on the mirror now and a much bulkier pack for the ambient and rain sensors, masked by a shaded area on the windscreen:
Attachment 17565
The marks are rain on the screen - not on the seats!
Graham
The design has been changed on the 4.2's. No knob on the mirror now and a much bulkier pack for the ambient and rain sensors, masked by a shaded area on the windscreen:
Attachment 17565
The marks are rain on the screen - not on the seats!
Graham
#18
While trying not to be dense, I'm still not certain if the ambient light sensor is in the mirror or in the bracket for the mirror that is attached to the windshield. I also verified no knob but I do have a push button on the bottom of the mirror that says "auto" and causes a little green light to illuminate when depressed. What does this button do? If the the ambient light sensor is in the mirror, I can but a mirror from Coventry West for $175 and take out the ambient light sensor and relocate it some place. However, if the ambient light sensor is part of the bracket on the windshield, I may be able to find a way to attach the new mirror to the old bracket, leaving the sensor untouched.
Mark
Mark
#19
While trying not to be dense, I'm still not certain if the ambient light sensor is in the mirror or in the bracket for the mirror that is attached to the windshield. I also verified no knob but I do have a push button on the bottom of the mirror that says "auto" and causes a little green light to illuminate when depressed. What does this button do? If the the ambient light sensor is in the mirror, I can but a mirror from Coventry West for $175 and take out the ambient light sensor and relocate it some place. However, if the ambient light sensor is part of the bracket on the windshield, I may be able to find a way to attach the new mirror to the old bracket, leaving the sensor untouched.
Mark
Mark
The button is for the mirror dimming function - not the headlights.
When set to AUTO, the mirror darkens when headlights approach from behind to reduce the glare. It's very effective.
You've probably read about occasional problems with gel leaking from rearview mirrors? This is the photo sensitive gel used to darken the mirror.
Graham
Last edited by GGG; 03-09-2012 at 03:42 AM.