2000 Toyota Tundra Trailer Lights Not Working

If the signals are all correct coming out of the converter the problem is somewhere on the trailer.

2000 toyota tundra trailer lights not working. The factory harness probably also has a wire for either reverse lights or auxiliary power not used by the 4-Way. Trailer Lights Not Working Using Curt 55367 on a 2000 Toyota Tundra Determining Correct Wiring Harness for 2001 Toyota Tundra Parts Needed to Install 7-Way and Brake Controller on 2002 Isuzu NPR. In my experience of a light does not work its usually a bad ground.

Left signal light stays lit on the dash and does not blink and is stuck on lit up when lights are lit. You would have to trace the harness under the dash down the kick panel and under the hood. Service type Rear lights are not working Inspection.

The Curt harness C55367 only has inputs for battery feed to power the trailer lights which if that isnt work would be the likely reason why turn signals brake lights tail lights and ground. It is not the trailer as verified it worked with another toyota. As of the 2010 model year this has been corrected.

Disconnect your trailer but leave the cable hooked up and see if your lights work. That has always been the issue for me if I had one part of the lights not work when other trailer lights like the brakes did work. Trailer brake and turn lights not working on tundra running lights work - All lights and brakes work with other vehicles brake and turn signal do not work with my Tundra.

On the Tundra the white wire is the ground on both connectors find the corresponding wire on the trailer connector and ensure it is connected to the trailer. Check the wiring plug on the truck- there may be some gunk grime corrosion up in there on one of the pins. The tail light and brake light same bulb are an LED bulb but that shouldnt make a difference seeing how as they have worked just fine previous to a few days ago.

Frichco228 Jul 11 2020. If the signals are correct going into the box you know that the truck is not the problem. Interestingly I bought a lcd tester that you plug into the 4 pin connection it worked.