I have a 2009 Sebring and the turn signal on the passenger side is not working properly. When I turn it on I hear it blink normally a few times then start to blink very quickly. The bulb has two filaments but only one of the two comes on when it blinks. One of the filaments is used when the driving lights are turned on and both are used when the turn signal is turned on.
I swapped the bulbs between passenger and driver sides. The driver side worked fine and the passenger side had the same issue. The rear turn signal works and blinks at the same fast rate as the single filament in the front bulb.
I replaced the multifunction switch but it did not fix anything.
The passenger side headlight had stopped working a while ago and my father-in-law diagnosed a bad ground. He spliced in a new ground for that bulb holder and it fixed the problem. He suggested doing the same for this bulb holder. I am ok doing that, but I am confused by the wiring diagram from the Haynes manual.
The bulb holder has three wires: black, white, and white with a tan stripe on it. I assumed that the black was ground and the each of the other two wires provided power to one of the filaments. In the wiring diagram it looks black is ground, the WH/TN wire goes to the TIPM, and the white wire is not connected to anything. Am I reading that correctly? If so, how does that one wire control the two filaments separately?