Brake lights work, running/parking lamps work, turn signals hyper flash. Signal on left totally doesn't flash, signal on right does flash. Checked fuses, checked connections. Stumped.

Any helpful input greatly desired.

2014 STX super crew.

 

Could be the flasher. On my truck, it is up under the steering column. Should say EP27 on it.

 

What year is your truck? Reading that the 2014s don't have a serviceable switch, but run off of the bcm. Thanks!

 

I was just looking at the Phillips Bulb chart on their web site and was thinking of getting LED's for my 2015 , I was looking for rear back up LED bulbs. The rear back up LED's are't listed , but stop, tail and side marker are. BUT when you click on buy it says some times because of the electrical system and LED low electrical draw it shows the bulb is burned out on the computer. BUT they have a fix for it Phillips says. I might buy a set of tail light bulbs to see if they work or the computer tells me 'bulb is out'.

 

Here's what you need for the turns, https://www.superbrightleds.com/more...IB4aAiWt8P8HAQ

You'll need a resistor for each light, JUST for the turns, all others will work normally.

For the reverse lights, look in owners manual, or pull a bulb out, and cross reference the sizes.

 

You'll want 3156 (or 3157) for your reverse lights stainless. 3157 would be your rear brake and 194 would be your rear license plate bulbs. 7443 for your front turn signals.

We have everything available, including the Load Resistor that the OP mentioned. My guess is he either does not have that.

Load Resistors (or on some trucks you can replace the relay flasher) are required when you put LED bulbs in