Is 2003 Lexus GX470 Pre-Wired for Trailer Connector

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Question:

Hi! How can I find out if I have a 4 way or 7 way connector for my GX470 2003. I just bought the Drawtite hitch from you. Please take a look at my photo of the existing connectors. Thanks

asked by: Thomas W

0

Expert Reply:

Given the connectors shown in the photo, although your 2003 Lexus GX470 wasn't equipped with the factory 7-way trailer connector, it looks like it's pre-wired for one. The connectors shown match up perfectly with the # HM43374 7-way trailer connector for the 2003 Lexus GX470.

You'll want to use a circuit tester like # PTW2993 on the pins of the 2 connectors you found to see if they're active. I've provided a photo showing how they're pinned out; your connectors will be a mirror image of the provided pinout photo. With the ignition on, you should see power on the 12-v pin, and power on the taillight/turn signal/brake lamp pins as each function is activated. If not, you'll need to check the fuse box to ensure the fuses for those functions are installed. If they aren't, you'll need to install them to activate them.

Luckily enough, I was able to find a .pdf copy of the owner's manual online, which isn't typical of older vehicles and was able to find the location and rating of the tow package fuses:

• Location 7, 30A Fuse- Power to Brake Controller
• Location 9, 30A Fuse- 12-V Feed to Trailer
• Location 10, 40A Fuse-Trailer Lamps
• Location 42, 30A Fuse-Trailer Taillight Converter

Once the fuses are in place and the # HM43374 is installed, you should be good to go. If the trailer you'll tow has brakes, you'll need to install a brake controller. I'd recommend a proportional controller like the Tekonsha Primus, part # TK90160. You'll also need the brake controller harness, part # 3040-P. The connector under the dash that the # 3040-P plugs into should be located above the e-brake pedal, just above the kick panel.

expert reply by: Mike L

0

Tow Package Connectors-2003 Lexus GX470
(click to enlarge)

Answer 1

Hey Anna, we have just what you need to activate the trailer wiring on your 2007 Toyota 4Runner and will plug right into the two connectors you have pictured (thanks for that by the way). What you need is the Hopkins part #HM43374 which gives you…

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Answer 2

There is no way to reuse the same bolt holes that held on the OEM 7-way with the new Hopkins Plug-In Simple Vehicle Wiring Harness for Factory Tow Package #HM43374 on your 2008 Toyota 4Runner. You can drill new holes if you wish to reuse the…

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Answer 3

The Hopkins Plug-In Simple Vehicle Wiring Harness for Factory Tow Package part #HM43374 which is a fit for a 2007 Lexus GX 470 with tow package features a one-piece molded connector and harness. The trailer connector is non-removable like some…

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Answer 4

From the picture you sent in it looks like you are needing the Hopkins Plug-In Simple Vehicle Wiring Harness for Factory Tow Package #HM43374 for your 2004 Lexus GX 470. This gives you both a 4-Way and a 7-Way connector for various trailer…

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Answer 5

For your 2003 Lexus GX470 the Hopkins 7-way part #HM43374 is the correct fit and would plug right into the two connectors you sent in a picture of. No cutting or splicing required. Then to install a brake controller all you need is a quick install…

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Answer 6

Thank you for the photo, and if you have two female connectors on your 2003 Lexus GX 470 (I can't quite tell from the photo) then you are correct that you will not be able to use the Hopkins Plug-In Simple Vehicle Wiring Harness for Factory Tow…

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Answer 7

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Answer 8

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Answer 9

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Answer 10

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Answer 11

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Answer 12

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Is 2003 Lexus GX470 Pre-Wired for Trailer Connector

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