My friend brought me her car the other day with an interesting problem that I couldn't figure out. Her low beams work intermittently - they'll work until she puts her turn signals on or hits a bump, then she has to flash her high beams to get them to come back on. While her car was in my garage, the low beams refused to turn back on at all. High beams and all other lights work just fine.
- First I checked the elements in the bulbs, still good.
- I connected power to both the high and low beam terminals, the light shines on both
- I checked power at the harness, 12v on low-beams and 0v on high-beams when "normal", 0v on low-beams and 12v on high-beams when high-beams are turned on. Ground is good.
- I checked continuity between the plug and fuse box, a-okay.
- I checked power at the fuse box, also good.
- According to the Bently, (unless I'm looking at the wrong page 97-259) the power comes in to the switch (stalk), then to the fuse box, then the lights
Now at this point I'm starting to believe maybe the stalk is bad. But the part that really confuses me is that the bulbs HAVE POWER at the harness, yet they don't turn on. But when I manually apply power to the bulb, they turn on.
Any ideas? Is there a relay that I couldn't find the info for?
edit: found Daytime running lights change-over relay page 97-167
Modified by Pat @ Pitt Soundworks at 3:23 PM 4-8-2010