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Wiring a 7 pin trailer adapter Lexus rx400h - 2007 Lexus RX 400h Hybrid

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John P Schwantes Jr

  • 1509 Answers

SOURCE: Lexus RX400h message 'Check Hybrid System' and it won't start

Trying to get past the right way is a good way to get killed ( don't try to. )

Posted on Jun 17, 2010

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Anonymous

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SOURCE: i couldn't find the ALTERNATOR in my car ,my car

Does it still have a warranty on it? If so I would use that while you got it, and get it fixed free of charge. There is probably a cosmetic plastic cover hiding the alternator. However if you locate the belts than it will lead directly to the alternator.

Posted on Jul 11, 2010

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gwidmeyer

  • 40 Answers

SOURCE: lexus rx400h 2006 - won't start "shift to park to start"

Hey Guys, The problem is that the 12V battery is low or dead. Having the battery replaced will fix this issue. (I have the same vehicle, had the same problem, and this was the fix)

Posted on Jan 10, 2011

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1 Answer

My truck has a 4 wire plug plugging into a 4 plug with 5 wires to trailer. how do you wire trailer wires to adapt to plug that plugs into the plug with 4 wires


If the trailer has electric brakes that are powered by a separate battery, you use a 4-pole to 5-pole adapter and connect the extra wire to the truck backup light circuit.
4 pin to 5 pin plug for trailer lights The Hull Truth Boating and Fishing...

Aug 12, 2017 | Cars & Trucks

2 Answers

I have a 7 pin adapter on my truck and my trailer has a 4 pin adapter, i bought a 7-4 pin adapter and my trailer lights still not working properly


Trailer lamps usually have dual filiments in a single bulb, whereas newer cars have sepaprate bulbs for each function. The two different types do not play well together. Go to a good parts store or u-haul dealer and they can provide a logic box that can fix this issue.

Apr 23, 2015 | 1992 Ford F150 SuperCab

1 Answer

When I tow with my car the left blinker doesn't work on the trailer. There is a 7 pin round plug on the car, with a flat adapter to the flat pin on the trailer. I have had the same problem with at...


Hello Carol, The 7 way is for use with a brake controller and/or a trailer that has electric brakes. The 4 way flat is a basic trailer plug connector.
Connect as follows:
Green wire- Connects to the vehicles right turn wire harness & provides brake light and right turn signal on trailer.

Yellow wire- Connects to vehicles left turn wire & powers brake light & Left turn signal on trailer

White wire- Ground

Brown Wire- Tail/ marker/ license plate lights

The Blue, Red & Purple wires on the 7 way will not be used on the adapter, those are for brakes.

I hope this information is helpful.

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Sep 18, 2011 | Honda Accord Cars & Trucks

2 Answers

I need a wiring diagram for a 7 wire system


I am guessing you mean the 7 pin trailer tow adapter.

the 7 pin RV plug itself

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The 2005 trailer tow adapter wire diagrams
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Oct 23, 2010 | 2004 Ford F150

1 Answer

Lexus RX400h message 'Check Hybrid System' and it won't start


Trying to get past the right way is a good way to get killed ( don't try to. )

May 15, 2010 | 2006 Lexus RX400h Used Cars

1 Answer

My new trailer has a 7 pin plug and my 1997 gmc has a 6 pin plug. I will need to change my 6 pin plug out to make my trailer brake work. What is the wiring sequence for a change to 7 pin plug.


buy adapter for 6 to 7 pin any auto store carries the adapters or if u want to change it out the new adapters paperwork will explain the change over

Jan 31, 2010 | 1997 GMC Sierra

2 Answers

Lexus rx400h 2006 - won't start "shift to park to start"


Hey Guys, The problem is that the 12V battery is low or dead. Having the battery replaced will fix this issue. (I have the same vehicle, had the same problem, and this was the fix)

Oct 05, 2009 | 2006 Lexus RX400h Used Cars

1 Answer

Trailer fuse blows when hooked up


Is your truck wired for a 7 pin flat plug? if so are you using an adapter? The adapters are made differently. One has the center pin as brakes and the other uses the center as Aux. power. Any chance of an animal getting to the wires? They are kown to chew on the wiring. Also try http://www.etrailer.com/faq-wiring.aspx. They have a great website with lots of info.

Jun 02, 2009 | 1999 Dodge Ram

1 Answer

Wiring diagram


If you are going from a 4 pin on your trailer to the 7 pin on the truck. You need to go to parts store or a department store (ex Wal Mart) and look in trailer section and find the adapter. Thats what I did. Also Remember if your lights don't work on trailer, check the plug to make sure its tight or check the fuse under your drivers side rear seat for that fuse box.

Apr 15, 2009 | 2006 Chevrolet Trailblazer

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