Well that was quick...

[jpdavis44]

Replaced the circuit board on my left rear taillight less than a week ago...already acting up again...

 

[Fast69Mopar]

Replaced the circuit board on my left rear taillight less than a week ago...already acting up again...

What exactly is your left rear tail lamp doing? Do you have the intermittent lamp out light illuminated in the instrument cluster?

 

[SYKRAMMAN]

Replaced the circuit board on my left rear taillight less than a week ago...already acting up again...

Check the plug itself, sometimes it gets corrosion inside of it. You can use an electrical spray with a pipe cleaner to clean it up, worked on mine.

 

[HemiLonestar]

Known problem for years, circuit boards are **** on those things. My problem child was the right rear, bout once every month to two months. Take it out, remove the board, turn the actual bulb the truck says is burned out around, put it back together, good to go for a while. No more of that for me lol:

 

[jpdavis44]

What exactly is your left rear tail lamp doing? Do you have the intermittent lamp out light illuminated in the instrument cluster?

I get the lamp out light/chime and the turn signal on that side doesnt work. Everything else seems to work ok.

I will try the cleaner stuff that was suggested below because it soesnt always tell me the lamp is out, just most of the time.