audi_q7101

My rear right tail light is not working, instead the one on the bumper lights up when the brake is pressed and/or when the lights are turned on. After doing research i found a few threads with this issue, the solution for them was the replacement of the tailgate hatch switch (picture below) but after changing it i still have the same problem. Anyone recommend anything else? do i need to get it re programmed in order to work?

flynavy

BULB?

audi_q7101

Hahaha sorry i should have mentioned THAT was the first thing i checked

flynavy

I figured that but you never know! I once got a brand new defective bulb but that was an oddity to say the least. good luck

audi_q7101

the thing is, the entire light is not working, turn signals and everything. it did work once, until i opened the trunk then closed it, then stopped working again.

j4g3d

Multimeter in the light loom is where i would be checking to see if there is power coming in. If there is, then the problem is your complete tail light is faulty.

audi_q7101

if power was coming into the light loom, wouldnt the bulb light up? but i see what you mean, maybe ill try to see where the power stops coming in through the wiring. But im pretty sure when theres something wrong, doesnt the car automatically cut off power to the tail light? and then sends power to the bumper light, which is why the bumper light is now on

audi_q7101

After playing with the wires by pushing them in, it worked! Bad connection i guess

flynavy

I'll bet it was a bad ground as the whole unit was out.