passenger side directionals are blinking rapidly, all bulbs seem fine

[clydesdale]

I have a situation where my passenger side directionals are blinking fast, but I have all bulbs working and swapped them all to the driver's side, but the passenger side remains with the rapid blink. Any thoughts on this?

[Jaxx_]

I can't speculate the cause, but I will let you know that the relay is load based--if the load is below a threshold it will make the lights flash faster(to alert you that a bulb is out). I believe the spec is <7W, but I can't remember exactly.

If you have another one, swap the emergency flasher switch as the directional lights pass through it. It could be a quick test to eliminate it from the possible issues.

[ELVA164]

Another thing to check is the material the bulb bases are made out of. They should be a silver color (nickel), but many times they're replaced with brass. This can affect the resistance in the circuit.

[jlevie]

The common causes of this are the wrong bulbs (get them from dealer), corrosion in the bulb sockets, in the connectors, or in the grounds.

[Northern]

If it is a late model NA spec car with dual filament turn signals, make sure you're not just seeing it blink the parking light (dim) filament.

[clydesdale]

Northern,
That is what seems to be happening in the front. The front is dim. The rear seams fine, but more rapid than normal. I had swapped front bulbs to the other side, but it did not effect it. The passenger side is certainly dim.
When I put the hazzards on, they blink at the normal speed.

[iChase]

This happened to me... But it just went away after a few days. My car is bi polar like that 🌟

[Victor_PR]

I have a situation where my passenger side directionals are blinking fast, but I have all bulbs working and swapped them all to the driver's side, but the passenger side remains with the rapid blink. Any thoughts on this?

I had the exact same happen to me. It turned out that the ground cable at the bulb socket was not connected. I removed the bumper and made a proper connection. All OK now!

[AndrewBird]

Definitely check the grounds at the lights. A bad ground will cause power to find ground through the second filament in the bulb and cause a fast flash.

[goldenbb]

Had this on both sides. One side was a broken wire, the other side was in the trunk on the round connector that screws in--it has that plug with all those long, round posts on it--one of those was broken off inside and only making intermittent contact. I fixed it by soldering some wire in place of the broken off posts.