Left blinker not working

Hello, I have been having an issue with my 2018 TRD off road where the left blinkers don't work with the stock or the hazards. The right side works just fine. I have after market headlights but the issue was present before I bought them. The stock is fine and from following the wires from where I can see there's no exposed copper, the fuse is fine too. I just wanted to see if anyone had any ideas before I have buy a new cluster as that's the only thing I can think of that could possibly fix this issue.

 

May sound obvious but have you tried new correct bulbs?

 

Is it Friday already? Seriously it sounds like your bulb is Kaput.
K.I.S.S

 

Yes I have tried new bulbs front and rear and it didn't do anything unfortunately

 

Sorry I didnt realize the front was out as well.

 

Try a voltage meter or a voltmeter to see if you're actually getting a current where the bulbs plug in ?

 

I have tried that and both ends are getting voltage just not enough, it getting around 6 volts when the right side is getting 12ish

 

OK well instead of all this question and answer maybe you could start at the beginning and tell us everything you've tried and done including the age and condition of the battery ?

 

How often do you really turn left anyway! LOL

 

Its a brand new battery 03/24 I have replaced the bulbs I have checked ohms and power the lights are getting power I checked the stock connection and it was in place, I have pulled the cluster out to check the connections and checked all wires behind both I didn't see any copper. I went back under the hood traced the wires to the fire wall didn't see any copper there either. I traced the wires from the tail lights to where it enters the cabin still no copper. I have been looking these forums for a few months now trying to find an answer. The only thing I haven't done is pulled out the radio and see if the wires from the head unit and hazard switch have chaffed against each other.

 

A lot more than I want to lol

 

https://www.tacomaworld.com/threads/left-turn-signal-and-emergency-blinker-not-working.702480/

 

what aftermarket stuff has been added?

 

I know what’s wrong with it. It ain’t got no gas in it.

But seriously, blinker fluid. Send your wife in to get it. Purple jug at AutoZone

 

You beat me to it!

 

Just head lights that’s it, it had the issue with the stock ones too. I was able to swap my cluster with a friend and it did the same issue. Good new is it doesn’t need a cluster but now I really don’t have a clue. Would anyone have access to the wiring diagrams for a 3rd gen with the connectors with them being labeled?

 

Man I wish it was that easy

 

May need to look at the ligh switch assembly. Violet wire.
Looks like your RH is working.



Check resistance on pins of C11 connector that plugs to the switch.

 

Thank you! I’ll post again when I do this I really hope this is it

 

Does the left rear turn signal work just not the left front or do neither of the left turn signals work?