Hi, My 2000 Tundra came without a trailer hitch. I just had a Class III hitch installed at U-Haul. It is a nice tubular steel hitch with just the receiver showing. However the guys at U-haul seemed to be a little confused on the proper wiring harness. They offered a plug-in harness or a splice in harness. Obviously the plug-in harness cost more. I noticed that the Toyota parts dealers offer two trailer wiring parts, a harness and a fuse box. Do I need both? Can I go with the U-haul plug-in harness? Thanks, Jeff
Trailer wiring harness for 2000 Tundra
Nov 20, 2004
2 Replies
Jeff,
I have the same truck and I too bought an aftermarket hitch. I bought a Hoppy (#43365) trailer wiring harness which just plugged right in ("T" connection) to my stock taillights.
Here it is:
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Hope this helps.
John
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For what it is worth, most new vehicles wiring may not handle the added load of trailer lights. You could easily overload one of the circuits and burn up your light or turn signal switches or even parts of the wiring harness.
With that being said, I installed a Draw-tite T-One wiring connector on my
2002 Tundra that utilized Toyota's existing wiring harness to send auxiliary power from the battery to a relay adapter included with the kit mounted at the rear of the truck thus taking the majority of the added load off the vehicles wiring harness. Installation was quite simple and easy to do.Dodge had a similar problem shortly after they released their new Dodge Ram pickups back in the 90's when people would splice directly into the rear light harness for their trailer connectors that it fried the light switch wiring connector so bad that Dodge had to come out with a pig-tail replacement for the dealers to use instead of replacing the complete under-dash wiring harness.
Larry
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