[dhaining]

Hi there,
I have a 2009 Rav4 Base Model V6 4WD. It has the towing package, and a factory Toyota trailer hitch and wiring harness. Here is the part number for the wiring harness: 08921-42900.

This part is a kit containing the interior and exterior wires needed. The exterior wire is a 2 foot 4-wire assembly that contains the 4-flat trailer connector, and a connector to plug into the interior wiring harness.

This brouchure: ( www (dot) rav4world (dot) com/pdf/2006/06_trailer_wire_harness.pdf) (my first post, sorry, I had to make the URL un-clickable) has the installation instructions, and if you page down to page 4, there's a diagram showing "SUB WIRING HARNESS NO. 1" at the back end of the vehicle.

I am wondering if that part (sub wiring harness no. 1) is available separately from the entire wiring harness kit. The entire kit is more than $100. I don't need all of that, but the 4-flat connector has a lot of corrosion, and I would like to replace it.

Please let me know your thoughts on this. Thank you!

Doug H

 

[DL175]

If Toyota does not sell that piece just buy the trailer wire to join it. That is a common part that can be cut and sliced together. Just cut the old wire off and connect a new extension with a new piece like this one. I would use a crimper and butt connectors for better connection instead of just taping the wires together. The one I show you is an extension so just cut one end off to match the old piece but you maybe lucky it works without cutting it. I can't tell in the pdf file what the other end of the connector looks like. You may want a shorter wire if this is has the same connector as the one in your car because is too long.

 

[Blogson]

The flat 4 connector on the Toyota OEM trailer wiring harness kit is a standard item and can be bought in a lot of stores in addition to auto supply stores. You can even buy that connector with short pigtail wiring which you can use to connect it to your current wiring. Suggest soldering or using butt connectors and solder, either with waterproof shrink insulation. My wife's hair dryer generated enough heat to shrink the wrap on my connectors.