I seached and did not find this problem. new to toyota. new to forum. I have a couple questions.

1. Are the lighting system on these trucks always problems?
2. I have one head light that is dimmer than the other.( yes i replaced the bulb and end connector.) Ideas?
3. Is there a best practice or good idea to replace the wiring to the back lights. ( Want to add some Back up lights) Old wires look ripe for being torn off by anything.

 

the headlights are problematic. Sometimes acid from the battery on the passenger side will corrode the headlight wiring.
I bypassed most of my headlight wiring with a PIAA H4 wiring kit I got dirt cheap.
4Crawler makes a similar kit that helps a lot