Thread: HUD fading in and out and EXT temp

When I bought the car a couple months ago I noticed the HUD would fade in and out. but after a week of driving it, she hasnt done that since.
Well she began to fade in and out again. Almost like when I hit bumps in the road but not exactly.
Any idea what to check on this?

Also on the heater control unit it says EXT and a temp. I'm guessing thats exterior temp. My question is everytime I start the car it begins at 126* and then moves down to about 10-15* warmer than the actual outside temp. Could this be a bad sensor?

Do a search for hud resolder. You have to re solder the photosensor.

I'm not having any luck finding any how to for the HUD resoldering... can you point in the right direction for this... thanks

ignition switch prob has build up on it....replace it it will cause electrical gremlins all over the car...

Update: Found some time to pull the HUD out and investigate. Noticed that the serial cable connector was starting to pull out. Made sure it was fully connected and put the HUD back together. So far been about 100 miles and he HUD hasnt faded out on me yet. I think I am all set in that department.

Now for the EXT temp. Anyone have any ideas on that?