Go Back   Club Lexus Forums > Lexus Model Forums > RX Models > RX - Second Generation > Hybrid Technology
Sign in using an external account
Register Forgot Password?

RX 400h trailer wiring

Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 08-02-10, 12:25 PM   #1
jettech
Driver School Candidate
Trader Score: (0)
 
Join Date: Aug 2010
Location: CA
Posts: 4
Default RX 400h trailer wiring

Hi guys, this is my first post but I've been a Lexus owner for about a year now.

I'm installing a hitch on my 2008 400h but I can't seem to locate the factory wiring to plug my wiring kit into. I called the dealer and asked if my car was pre-wired and he told me that they all are pre-wired, just not all have the kit installed.

Has anybody installed one of these kits in their 400h, and can help me locate the wiring plugs? I've looked everywhere in the back but can't find any loose plugs.

Thanks...Randy
This ad is not displayed to registered members.
Register your free account today and become a member on Club Lexus!
jettech is offline   Reply With Quote
Old 08-03-10, 10:59 AM   #2
jettech
Driver School Candidate
Trader Score: (0)
 
Join Date: Aug 2010
Location: CA
Posts: 4
Default

Disregard...figured it out, and finally found the connector.
jettech is offline   Reply With Quote
Old 08-16-10, 11:00 AM   #3
CometVR4
Pole Position
Trader Score: (0)
 
Join Date: Feb 2002
Location: CA
Posts: 363
Send a message via AIM to CometVR4
Default

I'm installing a hitch this weekend? What type of wiring do you need to plug in? Is it plug and play?
__________________
'10 Lexus RX450h AWD
'10 Mercedes C63 AMG
'06 Infiniti FX35 AWD
'06 Lexus RX 400h AWD-Sold
CometVR4 is offline   Reply With Quote
Old 08-16-10, 11:44 AM   #4
jettech
Driver School Candidate
Trader Score: (0)
 
Join Date: Aug 2010
Location: CA
Posts: 4
Default

Mine was plug and play. I just went to the dealer and bought the wire harness that goes to the Lexus hitch and plugged it in and everything worked perfectly. 60 bucks, but it came with connectors on each end and also had the grommet attached where it passes through to underneath for routing to the hitch.

Mine is an 08 model though, so I don't know if your 06 would be identical. I found my connector taped up to the harness over in the left hand corner, inside.

Good luck...Randy
jettech is offline   Reply With Quote
Old 09-01-10, 03:03 PM   #5
PLamarine
Driver School Candidate
Trader Score: (0)
 
Join Date: Sep 2010
Location: MA
Posts: 31
Default

Can you give more details on the hitch installation, maybe some pics? I would like to do this myself.
__________________
2008 Lexus 400h AWD
PLamarine is offline   Reply With Quote
Old 09-01-10, 11:15 PM   #6
jettech
Driver School Candidate
Trader Score: (0)
 
Join Date: Aug 2010
Location: CA
Posts: 4
Default

Unfortunately, I didn't take any pics when I did the job, as I was in a bit of a hurry. Sorry, but if you have the same year and model you should find the connector inside the cargo compartment, over in the left hand corner. You will have to take out the bin that stores the tools and then remove the flip up floor panels. After that just remove the remaining plastic bins on the left side and you should then have access to the wiring harness there.

Like I said in my previous post, just go to the dealer and tell them you want the wiring adapter harness for the Lexus OEM hitch. It will plug directly into the connector that you uncover in the back, and then route the harness through an existing hole(there is a rubber plug already there that needs to be removed) and install the grommet that comes with the harness. Then, it's just a simple case of running the harness back to the hitch. Since the harness comes with a bracket that is no doubt supposed to install on the OEM hitch I simply positioned it where I thought it would be best and drilled a couple holes and screwed it in.

The harness comes with these plastic snap-in fasteners that I think are supposed to snap into pre-drilled holes in the OEM hitch. Since I didn't use the OEM hitch there was no place for these to snap into so I just left them and secured the harness with zip-ties as best I could. Not a big deal though. It works great as is.

As far as the hitch itself goes, it's really simple. Just remove the existing tie down brackets and install the hitch to the same holes. 15 minutes and it's done. At least, that's how mine went. I bought the Curt hitch.

I'll try to take some pics of the hitch as it is now and add them to my post later.

Hope this helps.

Randy
jettech is offline   Reply With Quote
Old 09-02-10, 04:39 AM   #7
PLamarine
Driver School Candidate
Trader Score: (0)
 
Join Date: Sep 2010
Location: MA
Posts: 31
Default

Thanks. I might buy the factory hitch at about $350 and try this out. Mine has the towing prep package. I only haul a small utility trailer and a log splitter now and then.
__________________
2008 Lexus 400h AWD
PLamarine is offline   Reply With Quote
Old 09-02-10, 04:59 PM   #8
CometVR4
Pole Position
Trader Score: (0)
 
Join Date: Feb 2002
Location: CA
Posts: 363
Send a message via AIM to CometVR4
Default

We have towing prep package. Also I ended up getting the harness from Lexus for $50. It plugged right in, also it was a bit of a PITA to put everthing back together. I'm getting ready to head to NC with my ZX-14 in tow and the lights worked on the trailer.
__________________
'10 Lexus RX450h AWD
'10 Mercedes C63 AMG
'06 Infiniti FX35 AWD
'06 Lexus RX 400h AWD-Sold
CometVR4 is offline   Reply With Quote
Old 12-12-12, 08:05 PM   #9
Stealth1
Driver School Candidate
Trader Score: (0)
 
Join Date: Nov 2012
Location: ON
Posts: 7
Default

Does anyone have pictures showing the tow prep package transmission cooler? I am buying a 2008 RX400h and haven't been able to find any way to confirm it has this. There's a cooler in front of the ac condenser but i've seen people say it's in the lower corner of the bumper.

Please help!
Stealth1 is offline   Reply With Quote
Old 12-12-12, 11:11 PM   #10
maseace
Driver
Trader Score: (0)
 
maseace's Avatar
 
Join Date: May 2012
Location: WA
Posts: 171
Default

If it has the towing package, you will see a small radiator behind the driver side lower grille below the foglight. It helps to use a flashlight. Also I hear the towing prep models have the open front grille 'L' logo, and the non-towing models have the solid L with the blue background (like the rear blue logo).
maseace is offline   Reply With Quote
Old 12-14-12, 09:59 AM   #11
Stealth1
Driver School Candidate
Trader Score: (0)
 
Join Date: Nov 2012
Location: ON
Posts: 7
Default

Yeah I couldn't see anything since the car wasn't on a hoist and I didn't have a flash light. it would be awesome if someone could post a picture up.
Stealth1 is offline   Reply With Quote
Old 12-14-12, 11:05 PM   #12
maseace
Driver
Trader Score: (0)
 
maseace's Avatar
 
Join Date: May 2012
Location: WA
Posts: 171
Default

Here you go.
Attached Images
  
maseace is offline   Reply With Quote
Old 12-14-12, 11:28 PM   #13
Stealth1
Driver School Candidate
Trader Score: (0)
 
Join Date: Nov 2012
Location: ON
Posts: 7
Default

Amazing, picking her up tomorrow and this was a key part of the purchase so i'm praying it's there.
Stealth1 is offline   Reply With Quote
Old 12-19-12, 08:02 AM   #14
glassmanj
Rookie
Trader Score: (0)
 
Join Date: May 2012
Location: ky
Posts: 69
Default

i believe if you simply search the threads you'll find instruction on how to install trailer hitch. also you'll find that the toyota and lexus trailer hitches are identical with both part numbers stamped on it so buying the lexus version is simply almost twice as much. and you can get lexus hitch cap on ebay for $10. do the search and you'll find everything you need to know.
glassmanj is offline   Reply With Quote
Old 10-14-13, 09:29 AM   #15
meades12
Driver School Candidate
Trader Score: (0)
 
Join Date: Feb 2013
Location: IN
Posts: 1
Default Help me on where the electrical connection is?

Quote:
Originally Posted by jettech View Post
Hi guys, this is my first post but I've been a Lexus owner for about a year now.

I'm installing a hitch on my 2008 400h but I can't seem to locate the factory wiring to plug my wiring kit into. I called the dealer and asked if my car was pre-wired and he told me that they all are pre-wired, just not all have the kit installed.

Has anybody installed one of these kits in their 400h, and can help me locate the wiring plugs? I've looked everywhere in the back but can't find any loose plugs.

Thanks...Randy
Randy,

Where did you find this connection? I have a 2008 Lexus RX 400h with the blue tint on the lexus emblem.

Mark

Last edited by meades12; 10-14-13 at 09:30 AM.. Reason: Missed my vehicle maked
meades12 is offline   Reply With Quote
Old 10-14-13, 09:29 AM
 
 
 
 
Reply

Tags
2008, 400h, connector, harness, hitch, lexus, oem, prep, prewired, rx, rx400h, tow, trailer, wire, wiring

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
2012 led stripped headlights from Sewell questions jchen IS F 18 08-16-13 02:27 PM
IPhone help with ES330 lotsof8s ES300 and ES330 1 06-13-13 10:50 AM
Where does trailer brake controller harness plug in? sfeist LX570 3 10-08-12 04:39 AM
How do I know if my RX300 has the towing prep package? gobble RX - First Generation 2 11-29-04 09:53 AM
CD Changer Wire Harness DavidGS300 Lexus Audio, Video, Security & Electronics 7 08-15-01 10:30 AM

All times are GMT -7. The time now is 09:23 PM.

Join ClubLexus
Advertising


Copyright © 2000-2008 Internet Brands, Inc. All Rights Reserved
Privacy Policy | Disclaimer | Terms of Use | JOBS


Get all contact info