Thread: HUD... Pain in the A$$...

I have the same problem, when i look down thru the windshield nothing is lit up. I have only had the car for a week and it hasnt worked at all. Today while trying to figure out the problem i found a small black module looking thing with fins that was unplugged. I plugged it in and the hud came on........for about 2 minutes then went out again. I checked the connection at what i thought was the hud module and later found out it is the drl diode. Connection was good but the diode was very hot, so i took it out to inspect and re-installed once it cooled down.......hud works again, for about 2 minutes. Is the drl diode in anyway connected to the hud?????

Originally Posted by robstout

I have the same problem, when i look down thru the windshield nothing is lit up. I have only had the car for a week and it hasnt worked at all. Today while trying to figure out the problem i found a small black module looking thing with fins that was unplugged. I plugged it in and the hud came on........for about 2 minutes then went out again. I checked the connection at what i thought was the hud module and later found out it is the drl diode. Connection was good but the diode was very hot, so i took it out to inspect and re-installed once it cooled down.......hud works again, for about 2 minutes. Is the drl diode in anyway connected to the hud?????

I dont think so except for the dimming function but theres a reason it has that much heat sinking.

Well it must have just been coincidence that the drl diode had anything to do with it. I went to work yesterday with the diode off the car and the hud worked for a few minutes and then disappeared. Is that a normal occurence for this spring issue?