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Old 07-05-17, 11:14 AM   #1
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Default 4 wire brake switch

Hi,

I have been trying to fit cruise control to my 2005 2.0HDi.
I have fitted the switch and programmed it on Planet but the cruise control immediately switches off.
I have checked the brake light switch and I only have 2 wires going to it.

I now need to fit a 4 wire switch and wiring.

Where do I connect the 2 extra wires to make my cruise control work.

Thanks

Mick
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Old 07-05-17, 07:40 PM   #2
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You have the pre facelift car and some of them came with the 4 wire double pole switch whereas others, including your came with the 2 wire single pole switch. These cars have an extra hole to mount a second switch and if you are lucky there will be an unused plug tucked away somwhere close by the existing brake switch. If you have this connector then you need the seperate cruise control switch which fits in the extra hole (below the brake switch I believe). This is not the same as the brake switch as it works the opposite way. I'm pretty sure the brake switch is normally open and closes when operated with the cruise switch being normally closed and opens when operated (though it could be the other way round). It costs around the same as the brake switch and ECP stocked them last time I needed to look for a brake switch for a 307.
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Old 07-05-17, 07:51 PM   #3
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I w hother look in the morning but I am pretty sure that I have not got a second hole or an extra plug for the other switch.
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Old 08-05-17, 01:16 PM   #4
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My car does not have a space for another switch. I have attached a couple of pictures
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peugeot-brake-switch-001.jpg   peugeot-brake-switch-002.jpg  
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Old 12-05-17, 02:19 PM   #5
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Come on Guys, surely somebody must know where I have to connect these 2 other wires
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Old 13-05-17, 10:21 PM   #6
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That switch looks a lot like the 4 wire switch I had in my 2004 307. Are you certain there are only two wires in it ?

If there are only two wires in the plug is there space for two more ?
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Old 14-05-17, 03:31 PM   #7
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Hi Storeman,

I have just removed the brake switch and you are right. It is a 4 wire switch but there are only 2 wires going to the plug although there are spaces for 2 more.

All I need now is to know where to connect them to!!!!
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Old 14-05-17, 07:54 PM   #8
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Quote:
Originally Posted by patspiercing View Post
Hi Storeman,

I have just removed the brake switch and you are right. It is a 4 wire switch but there are only 2 wires going to the plug although there are spaces for 2 more.

All I need now is to know where to connect them to!!!!
They will likely go to the ecu but I no longer have a 307 to physically check. I'll look and see if I can find a wiring diagram but it might take some time.
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Old 14-05-17, 07:57 PM   #9
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Just had a thought, try feeling the cable loom from the switch to see if it feels like there are more wires further up. It might be that the wires are there but have been left disconnected and covered with the tape around the loom. It's worth checking as if they are there it may be you just need to connect them to the switch and you can finally get cruise control.
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Old 15-05-17, 06:39 AM   #10
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Ok I will check that today.

Thanks Mick
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