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  #1045  
Old 07-27-2014, 07:23 AM
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Does anyone have a wiring diagram for an AU spec MY14?
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  #1046  
Old 07-27-2014, 07:35 AM
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Re: The Towing thread

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Originally Posted by iboughtajeep View Post
That diagram won't work as you have drawn it. You need to have the P3 trigger to the relay coil where you have "Centre".
Also, what are you referring to as "centre"? Thay way the "trigger" the relay. Unless im misunderstanding the trigger wire from the P3.
.
Yep... it'll work. The only wire we're interested in on the P3 is the red wire, which is effectively bi-directional. So for the two scenarios:

- It "receives" 12V on a braking event, and in my case this is via the relay being switched from the centre brake lamp. Note it's possible that a simple diode installed the "opposite" direction to the others may work, and I'll give that a shot first due to it being simpler and solid state. The P3 may not like the voltage drop across the diode... there are no specifications for tolerance in this regard.

- It "provides" 12V on application of manual braking. This is delivered via blocking diode to the left and right brake lights, which maintains separation for the globe monitoring.

Cheers,
Steve

Edit: This is the super simple way which I'll try first. Hopefully the P3 doesn't mind a little bit of voltage drop on the brake input.
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  #1047  
Old 07-27-2014, 08:11 AM
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Re: The Towing thread

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Originally Posted by Barboots View Post
Yep... it'll work. The only wire we're interested in on the P3 is the red wire, which is effectively bi-directional. So for the two scenarios:

- It "receives" 12V on a braking event, and in my case this is via the relay being switched from the centre brake lamp. Note it's possible that a simple diode installed the "opposite" direction to the others may work, and I'll give that a shot first due to it being simpler and solid state. The P3 may not like the voltage drop across the diode... there are no specifications for tolerance in this regard.

- It "provides" 12V on application of manual braking. This is delivered via blocking diode to the left and right brake lights, which maintains separation for the globe monitoring.

Cheers,
Steve

Edit: This is the super simple way which I'll try first. Hopefully the P3 doesn't mind a little bit of voltage drop on the brake input.
I must me misunderstanding how a brake controller works.

I was under the impression that it uses the internal gyrometer to apply the trailer brakes, and you can manually apply them with a button. If I am correct, then the P3 shouldn't be affected by voltage drop at all on the trigger wire as it doesn't rely on it for anything.

Revisiting you drawing, I can now see how you intend to wire it, however, if i was doing it, id opt for a different method where the wiring to the brake lights remained factory, and the trigger wire from the P3 went to a relay coil, in turn operating the brake lights.

The more I think about it, the more i think you won't need the diodes as normally there is a module that monitors either resistance or current draw of the lamp circuit for lamp status, neither of which should be altered. I could be wrong though....

Let me know how you go. If I get a chance tomorrow, ill sketch up the method I'm trying to describe.
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  #1048  
Old 07-27-2014, 06:12 PM
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Here is what I was trying to describe. I can't see any reason why this would not work. You may need multiple relays or at the very least multiple contacts so you can have a separate line to each brake light.

ForumRunner_20140728_091205.png

Are the brake lights LED on the MY14?
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  #1049  
Old 07-27-2014, 08:47 PM
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Re: The Towing thread

Haven't been following this thread closely lately so I might have missed something. Are you guys saying that the MY14 doesn't have a trailer plug like the MY11-13s?
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  #1050  
Old 07-27-2014, 08:58 PM
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Re: The Towing thread

That's correct Bob. All aspects of wiring in trailer requisites are more difficult. In the US there is the trailer module, but Cheap Australia didn't spec it...

So like the MY11-13, you can't wire brake controllers to the brake switch. However you can "tap" most of the required wiring circuits around where the MY11-13 plug is. Unfortunately, on MY14 all brake light circuits are individual, so if you only tap the left brake light for the controller input, you'll only get a left brake light when manually using the controller.

Now I'd like to say "so what", but I've heard there's been decent checks including such things by RTA / Transport / etc. I don't want the annoyance of perhaps having to get in there again and sort it out later. Do it once, do it right.

Cheers,
Steve
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  #1051  
Old 07-28-2014, 01:28 AM
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Originally Posted by Barboots View Post
That's correct Bob. All aspects of wiring in trailer requisites are more difficult. In the US there is the trailer module, but Cheap Australia didn't spec it...
Is that the module which deals with the sway control? What else does it do?
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Old 07-28-2014, 01:38 AM
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Re: The Towing thread

Our cars have trailer sway control, yet don't have this other module.

The trailer module is the breakout box pictured in the middle right of the schematic you linked a dozen or so posts back. I'm guessing it buffers many of the signals to avoid the circuit overloads some people have had, plus it provides the illusive "grey plug" under the dash for plug'n'play brake controller installation.
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Old 07-28-2014, 01:40 AM
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Re: The Towing thread

Back on this sh!t job again. Pity me.

uploadfromtaptalk1406529603901.jpg
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Old 07-28-2014, 01:56 AM
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Quote:
Originally Posted by Barboots View Post
Back on this sh!t job again. Pity me.
At least you are experienced, 2nd time no sweat.
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  #1055  
Old 07-29-2014, 02:34 AM
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Re: The Towing thread

Just a quick question, is the MY14 Mopar towbar the same as the MY11-13 Mopar towbar?
Is Mopar part no XAU008220WKTB the same for WK2's?

Cheers,
Matt
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  #1056  
Old 07-29-2014, 03:15 AM
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Re: The Towing thread

Long answer. My last MY14 was fitted with the MY11-13 towbar. No problems. I got a quote for my new MY14, and was given a higher price for the "new" MY14 bar, so I asked if I could get a price for the "old" one.

Nope. Old part gone. New MY14 part now applies to MY11-13 as well.

What a circus...
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