Headlights - What warning light goes on?
11-09-2004, 01:40 AM
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Track Day
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Headlights - What warning light goes on?
My warning light started going on this evening and I have noticed that one of my headlights is out. I looked through the threads but did not find anything about this so I thought I would ask (so that it is documented for others):
1. When I depress the warning light reset, the warning light goes back on. I thought the reset switch resets until the next shut down / start up?
2. I also notice that there was no control panel info display lit up (like...'headlight lamp' or something like that). I suspect that indicates that the dash bulb itself for that warning indicator is out perhaps?
This is for a '79. I will go ahead and replace both headlights (recommendation from here) but I am just curious if these symptoms are consistent with a headlamp being out and perhaps if these symptoms are consistent with some other electrical malfunction.
I will reply herein with results - again for others. Always good to document oddities.
Having fun.
Thanks.
1. When I depress the warning light reset, the warning light goes back on. I thought the reset switch resets until the next shut down / start up?
2. I also notice that there was no control panel info display lit up (like...'headlight lamp' or something like that). I suspect that indicates that the dash bulb itself for that warning indicator is out perhaps?
This is for a '79. I will go ahead and replace both headlights (recommendation from here) but I am just curious if these symptoms are consistent with a headlamp being out and perhaps if these symptoms are consistent with some other electrical malfunction.
I will reply herein with results - again for others. Always good to document oddities.
Having fun.
Thanks.
11-09-2004, 02:01 AM
#2
Inventor
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There isn't a warning for the headlights. Check the glovebox manual and verify that all the warning lights are working; it may be something else.
The central warning brain is voltage sensitive. When my original alternator was failing, it would trigger a [!] without any other lights.
Some versions of euro H4s have a 'blip' on the top of the lens, which peeks over the top of the headlight cover, and shows that the light is working.
The central warning brain is voltage sensitive. When my original alternator was failing, it would trigger a [!] without any other lights.
Some versions of euro H4s have a 'blip' on the top of the lens, which peeks over the top of the headlight cover, and shows that the light is working.
11-09-2004, 02:01 AM
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There are two classes of warnings - Group B where the reset button will reset the warning lights, and Group A which will not. The Group A ones are oil pressure, oil level, brake fluid level, and brake pressure. The headlight may be a coincidence - I would check the oil and brake fluid before driving again.
Interesting that stop lamps and tail lamps will both trigger a group B alarm, but not headlamps. I suppose they figured that you could see that one of the headlamps wasn't working without a warning lamp.
This is all in the owners manual. If you don't have one, you can find them on Ebay. They have other useful info like fuse and relay layouts.
Interesting that stop lamps and tail lamps will both trigger a group B alarm, but not headlamps. I suppose they figured that you could see that one of the headlamps wasn't working without a warning lamp.
This is all in the owners manual. If you don't have one, you can find them on Ebay. They have other useful info like fuse and relay layouts.