Need headlight harness upgrade

Hello!
2015 4.0L 4wd SR5

I installed 35W Auxbeam foglights and have unknown LED headlight bulbs installed. After about a year, I'm having problems.

My lights are dim and the right side often fails to power on. What I thought was a burned out light isn't, because it comes back on after I cycle the lights on/off or hi/low beam. One of the guys who works for me told me it sounded like the harness was going bad.

Since then, I've realized that the Tacoma factory lights were 50W and that the harness is insufficient even for the factory wattage.

What harness should I buy to upgrade from the 50W standard capacity to 100W or better?

Thanks for any help!

 

https://www.tacomaworld.com/threads/the-ultimate-headlight-upgrade-h4-not-led-or-hid.398066/

 

Lol, you'd be wrong. To begin with, your headlamp is designed around a nominal 60watt lowbeam and 55 watt highbeam. I say nominal, because halogen wattage ratings can be +/-10%. Your oem harness provides more than enough to power your "70 watt" LEDs.

Your lamps are failing to power up and are dim because they are overdriven LEDs with insufficient cooling. The "your harness sounds like its going bad," has to be a statement made about the cooling fans for your led bulbs. The only part in your factory harness that might make a sound is the relay or switch. Barring any ground issues at the plug, it sounds like the driver board is on the fritz for one of your lamps.

Pull the shite quality LEDs and go read the first several posts (which are up to date) in the headlamp bulb testing thread that herecomesace has linked.

 

Toy Runner,
Thanks for the reply. When I mentioned that it "sounded like" my harness was going bad, it was not a sound he heard from the truck. It was my description of what was going on. On top of the right headlight working sometimes and not others, the right foglight does the same thing. Even the right turn signal will occassionally fast blink (the sign that one blinker is burned out.) All the lights work, but they all work intermittently. That description was why my coworker said it sounded like the harness is going bad. I have read elsewhere that Tacoma harness wire gauge is insufficient even for the factory bulbs. All of these things culminated in the above post that it sounds like my higher wattage lights may have burned up the harness.

I will say that my right headlight's fan does sound like it is going bad (again intermittently.) Would an overheat on the right bulb cause intermittent problems with other lights on the right side?

I have no idea what the quality, longevity, or brand is of the headlight bulbs on my truck. These LED bulbs were in the truck when I bought it used 2 years/30k miles ago. In reading here, I have seen references to Auxbeam bulbs, which are the replacements I have bought. I have not put them in, yet, as I've installed a dual battery setup (Genesis) behind the left bulb, and I'm dreading swapping that bulb out due to all the stuff I'm going to have to take out. (The right is the problem, but I want to swap in pairs.)

Does the above affliction seem like a single bulb issue or a harness issue?