Hey Everyone. First time posting here. I was searching current posts and could not find an answer to this so hopefully someone here can help. I have a 1994 Sonoma. The rear driver tail light is malfunctioning. The top part of the bulb will light when I turn on the headlights. The lower portion of the bulb that should turn on for the brakes and blinkers does not work. The steps I've taken so far:
1. Tried two new bulbs, nothing changed.
2. Replaced the entire bulb socket, no change.
3. Brought out the voltometer. I get a reading of 12-13V running through the corresponding (A on socket) lead, and it will even rotate voltage/no voltage when the blinker is on. When I plug a light in though, nothing happens.
4. While messing with it two days ago it suddenly started working when I reseated the bulb. When I got up in AM the next day, it no longer worked. That night I replaced the socket, still doesn't work.
5. Checked all the fuses, replaced the blinker fuse even though it looked fine.
It's so strange to me that I see current running through the circuit but when a bulb is inserted nothing happens. The other light in that same bulb/socket works fine so I don't think it's a grounding issue. I am completely stumped as to why it doesn't light up. Any suggestions?
Thanks!!
Alex
1. Tried two new bulbs, nothing changed.
2. Replaced the entire bulb socket, no change.
3. Brought out the voltometer. I get a reading of 12-13V running through the corresponding (A on socket) lead, and it will even rotate voltage/no voltage when the blinker is on. When I plug a light in though, nothing happens.
4. While messing with it two days ago it suddenly started working when I reseated the bulb. When I got up in AM the next day, it no longer worked. That night I replaced the socket, still doesn't work.
5. Checked all the fuses, replaced the blinker fuse even though it looked fine.
It's so strange to me that I see current running through the circuit but when a bulb is inserted nothing happens. The other light in that same bulb/socket works fine so I don't think it's a grounding issue. I am completely stumped as to why it doesn't light up. Any suggestions?
Thanks!!
Alex