My turn signal light is blinking really fast, what to do?

[greatape]

this has been my problem off and on. Lately, cleaned the connector on the fender, pulled the bulb, cleaned a little bulb grease. that lasted about 4 turn signals, ready to order the harness now. (front right signal)
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2007 SE V6 titanium

Had the same issue w/my 4th Gen..seal the harness well

 

[eRocks]

Sorry to dredge up an old thread, by I'm having a similar issue on a 2019 SR5 with only 300 miles on the clock.

When engaging the right turn signal there is a rapid clicking noise, but the right dash arrow doesn't illuminate and none of the three (front, mirror, rear) right turn signals illuminate or flash. If I put the parking lights on, the right front turn signal will illuminate. If I put the hazards on, only the left side will flash. Would just the right rear bulb going out cause the entire right side to not function?

 

[ran]

I did go in an buy new harness's, didn't think this was a problem with 5th gen.
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2007 SE V6 titanium