HUD does not bright/dim automatically
Le Mans Master
Joined: May 2006
Posts: 5,987
Likes: 18
From: DuBois PA
St. Jude Donor '11-'12-'13-'14-'15
Hmmm Yeah you could be right, I should know better then relying on my memory?
I'm probably thinking of the Twilight Sentinel thingy... I've scanned that Thread and it appears to mostly be a cold colder joint issue right?
Tim
I'm probably thinking of the Twilight Sentinel thingy... I've scanned that Thread and it appears to mostly be a cold colder joint issue right?
Tim
Thread Starter
Race Director
Joined: Oct 2002
Posts: 10,864
Likes: 198
From: Southern CA
Yes a solder joint with known failure problems on the cb sensor.
Pro
Joined: Aug 2010
Posts: 545
Likes: 4
From: Calgary Alberta
From the service manual.
Head Up Display (HUD) Description and Operation
The head-up display (HUD) is a secondary display system that optically projects critical vehicle information off of the windshield. The head-up display (HUD) system has an electric tilt adjust that is controlled by the HUD up/down switch. Moving this switch directs the motor to move the HUD image up or down on the windshield. The HUD is also equipped with automatic dimming which gives the HUD the ability to sense outside light conditions, via a photo-cell and automatically adjusts the brightness levels. The HUD image brightness can be manually adjusted by moving the HUD dim switch. There is an ambient light sensor which allows the HUD image display to adapt to the brightness levels of the environment. During the start up of the vehicle all segments of the head-up display illuminate for 3 seconds.
Head Up Display (HUD) Description and Operation
The head-up display (HUD) is a secondary display system that optically projects critical vehicle information off of the windshield. The head-up display (HUD) system has an electric tilt adjust that is controlled by the HUD up/down switch. Moving this switch directs the motor to move the HUD image up or down on the windshield. The HUD is also equipped with automatic dimming which gives the HUD the ability to sense outside light conditions, via a photo-cell and automatically adjusts the brightness levels. The HUD image brightness can be manually adjusted by moving the HUD dim switch. There is an ambient light sensor which allows the HUD image display to adapt to the brightness levels of the environment. During the start up of the vehicle all segments of the head-up display illuminate for 3 seconds.
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
It means the internal light sensor in the hud itself is having issues. You would have to take the dash cover off, pull out the hud and take it apart to gain access to the sensor. Resoldering it might work or you might have to find something as a replacement, but there's no part numbers on this sensor....so no idea. I replaced the entire HUD on mine when this happened and they were only $196 at the time. No clue if they are even available now or not. Try an electronics store and see if you can obtain a sensor(s), till one actually works.
Thread Starter
Race Director
Joined: Oct 2002
Posts: 10,864
Likes: 198
From: Southern CA
It means the internal light sensor in the hud itself is having issues. You would have to take the dash cover off, pull out the hud and take it apart to gain access to the sensor. Resoldering it might work or you might have to find something as a replacement, but there's no part numbers on this sensor....so no idea. I replaced the entire HUD on mine when this happened and they were only $196 at the time. No clue if they are even available now or not. Try an electronics store and see if you can obtain a sensor(s), till one actually works.
Mine 2
