Signals not working but 4 ways works, brake lights work

[asf93555]

I’ve checked
- fuses good
- flashers good
- 12v going into the switch
- continuity on the switch between red (power) and (yellow,yellow) and (green,green)

What else can I check ?

[Noelie84]

Have you checked the connection from the stalk to the flasher fuse/flasher module (not sure which it goes to first) for continuity?
When you switch the turn signal on, does the bulb light up and stay that way, or does it stay dark?

[66patrick]

I had a similar problem that kept migrating from good taillights and no brake lights, to no taillight or brakelights, but good t/s lights. Turned out to be a bad ground inside one of the taillight housings.