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Sara




Joined: Apr 03, 2007
Posts: 2



(Msg. 1) Posted: Tue Apr 03, 2007 7:59 pm
Post subject: Cruise control turns off when headlights turned on
My husband just added a trailer hitch to our 2007 Odyssey and did some wiring to plug in the trailer lights when needed. Now the cruise control cannot be set unless the headlights are turned off! I can see that the cruise control is powered up. I turn off the headlights, then cruise control works normally, turn on headlights, and speed setting is cancelled. Guess I need to buy a manual with schematics, but does anyone know if these things are related?

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Seth1

External


Since: Jan 11, 2004
Posts: 191



(Msg. 2) Posted: Wed Apr 04, 2007 7:32 am
Post subject: Re: Cruise control turns off when headlights turned on [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
"Sara" <none.DeleteThis@000.com> wrote in message
news:998060_c432ac1d8ef14183dceb184dbb2df18e@autoboardz.com...
> My husband just added a trailer hitch to our 2007 Odyssey and did some
> wiring to plug in the trailer lights when needed. Now the cruise
> control cannot be set unless the headlights are turned off! I can see
> that the cruise control is powered up. I turn off the headlights,
> then cruise control works normally, turn on headlights, and speed
> setting is cancelled. Guess I need to buy a manual with schematics,
> but does anyone know if these things are related?


Somewhere in the trailer harness he's getting "feedback" from the trailer
lights through the ground line for the brakes. With the headlights on, that
closing of the ground line is looking to the car like your foot is on the
brakes thus cancelling the cruise control.

I would first suspect he used an improper aftermarket trailer harness that
lacks the proper isolation.

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motsco_

External


Since: Oct 24, 2006
Posts: 626



(Msg. 3) Posted: Wed Apr 04, 2007 8:26 am
Post subject: Re: Cruise control turns off when headlights turned on [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
Sara wrote:
> My husband just added a trailer hitch to our 2007 Odyssey and did some
> wiring to plug in the trailer lights when needed. Now the cruise
> control cannot be set unless the headlights are turned off! I can see
> that the cruise control is powered up. I turn off the headlights,
> then cruise control works normally, turn on headlights, and speed
> setting is cancelled. Guess I need to buy a manual with schematics,
> but does anyone know if these things are related?
>
-----------------------------

I think Seth described it perfectly. He should have installed a module
that 'adapts' the Honda connector to work with whatever style of trailer
you use.

http://www.hondasuv.com/members/showthread.php?t=21073&
http://www.hondasuv.com/members/showthread.php?t=18685&

Look through these threads and follow any links provided. You can also
sign in and _SEARCH_. No need to ask, the answers are already there.

'Curly'
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Sara




Joined: Apr 03, 2007
Posts: 2



(Msg. 4) Posted: Sat Apr 07, 2007 1:41 pm
Post subject: Re: Cruise control turns off when headlights turned on [Login to view extended thread Info.]
Thank you for your response. That helped him figure it out. Turns out he was using the wrong connector (5 wires come out of Odyssey and he had 4 wire connector for trailer) and had running lights and brake light wires going into one. We noticed the vehicle brake lights were always on too. Need different connector.
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