headlight diagnosis
Thread Starter
Advanced
Joined: Aug 2010
Posts: 57
Likes: 2
From: Denton TX
headlight diagnosis
Just took the wife out for a cruise and dinner. On the drive home, noticed the right headlight is out (low beam), and the left front parking (amber) light is out. The marker light in front of the left front wheel is working. I checked the high beams and all four light up, but that left front amber parking light is out. It does light up when I put the left turn signal on. Is this just a bad right headlight (low beam portion burned out), or a fuse, or something worse.
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
On the surface you have a bad left front turn signal bulb ( 1 filament is burned out).
You also have a bad right low beam headlight bulb. ( 1 filament burned out).
To be sure you will have to get your 12v testlight out , you could have some dirty connector issues or ground problems.
You also have a bad right low beam headlight bulb. ( 1 filament burned out).
To be sure you will have to get your 12v testlight out , you could have some dirty connector issues or ground problems.
Thread Starter
Advanced
Joined: Aug 2010
Posts: 57
Likes: 2
From: Denton TX
Thanks Roger,
I had just put the column back together after switching out the turn signal switch. I had also just checked all the lights that afternoon before finishing the column and took a cruise to celebrate. I thought it was odd to lose both bulbs at once, but didn't know how they are wired. Looks like another project.
Jeff
I had just put the column back together after switching out the turn signal switch. I had also just checked all the lights that afternoon before finishing the column and took a cruise to celebrate. I thought it was odd to lose both bulbs at once, but didn't know how they are wired. Looks like another project.
Jeff
Burning Brakes
Joined: Oct 2006
Posts: 1,044
Likes: 0
From: Henrico VA
You can take both filaments out and easily test them by jumering wires off the battery. Both those bulbs are dual filament, so be very careful not to let the wires touch both contacts. You can easily unplug the wires with the factory disconnects and slide a multimeter in there before you do anything. This isn't a real project until you find everything around the bulbs broken. 
