Went to replace the aircon relay in the BSI but......
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Went to replace the aircon relay in the BSI but......
Mine is different to the one in the guide here
http://www.406coupeclub.org/phpBB3/view ... on&start=0
Mines an 02 HDI coupe, I've attached pictures of the BSI. I really didn't expect them to be different. Does anyone know the location of the aircon relay? I'm screwed otherwise!
http://www.406coupeclub.org/phpBB3/view ... on&start=0
Mines an 02 HDI coupe, I've attached pictures of the BSI. I really didn't expect them to be different. Does anyone know the location of the aircon relay? I'm screwed otherwise!
- steve_earwig
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Re: Went to replace the aircon relay in the BSI but......
The guide is for a semi-mux car while yours is full-mux. The wiring diagrams say that the relay is still in there because that's where the feed comes from but they don't show me anything actually inside the box
Btw you sure it's the relay?

Btw you sure it's the relay?
Unskilled meddling sin©e 2007
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Re: Went to replace the aircon relay in the BSI but......
http://www.forum-peugeot.com/Forum/gene ... 2940_1.htm
Might be worth aread, Dunno how you Translate it tho
http://bratene.net/?p=86


http://bratene.net/?p=86
Re: Went to replace the aircon relay in the BSI but......
Yea I've read both of those with help from google translate but the first never revealed anything and the second is a semi mux bsi, thanks anyway though!
Well I put a voltmeter across the power supply to the compressor and got nothing, so I thought what with the relay being a common fault its bound to be that, I couldn't hear it clicking. But I didn't realise about the different bsi's, theres so little info about the relays in this bsi I'm thinking that it can't be a common fault and its probably something else.
I was rushing a bit when I tested it so I'll have another look. I'm not convinced the compressor itself is ok either, no faults on the aircon ecu but the bsi says short circuit on the compressor circuit.
Well I put a voltmeter across the power supply to the compressor and got nothing, so I thought what with the relay being a common fault its bound to be that, I couldn't hear it clicking. But I didn't realise about the different bsi's, theres so little info about the relays in this bsi I'm thinking that it can't be a common fault and its probably something else.
I was rushing a bit when I tested it so I'll have another look. I'm not convinced the compressor itself is ok either, no faults on the aircon ecu but the bsi says short circuit on the compressor circuit.
- steve_earwig
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- Joined: Thu Oct 04, 2007 6:09 pm
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Re: Went to replace the aircon relay in the BSI but......
I guess it's not impossible for the relay to pack up (I guess there must be one...)
Here's something I noticed while I was looking before (From here http://www.petrila.net/pug/Service/index.htm )
Edit: Argh! It's enormous! (As the actress said to the bishop) Have a link instead http://www.petrila.net/pug/Service/406/ ... fkd9qe.gif
Look, more connections to give you grief
Here's something I noticed while I was looking before (From here http://www.petrila.net/pug/Service/index.htm )
Edit: Argh! It's enormous! (As the actress said to the bishop) Have a link instead http://www.petrila.net/pug/Service/406/ ... fkd9qe.gif
Look, more connections to give you grief

Unskilled meddling sin©e 2007
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Re: Went to replace the aircon relay in the BSI but......
Had the same thing occur for me on Monday lunchtime, no click when turning AC on or off and the short circuit fault in the BSI.Valandil wrote: no faults on the aircon ecu but the bsi says short circuit on the compressor circuit.
Going to try and put in my spare BSI and ECU tonight as a quick check to see if its the BSI relay
1997 2.1 TD Exec (Sold)
1997 3.0 V6 Coupe S (Sold)
2001 406 HDi 110 GTX (Sold)
2002 406 Coupe HDi SE (RIP)
2003 406 Estate HDi 2.2 SE (Sold)
2003 406 Coupe HDi SE (To be sold)
2001 406 Coupe 3.0 V6 SE
2003 406 2.2 HDi SE
1997 3.0 V6 Coupe S (Sold)
2001 406 HDi 110 GTX (Sold)
2002 406 Coupe HDi SE (RIP)
2003 406 Estate HDi 2.2 SE (Sold)
2003 406 Coupe HDi SE (To be sold)
2001 406 Coupe 3.0 V6 SE
2003 406 2.2 HDi SE
- Doggy
- Mod with a 2.2 HDi, De-Fapped!
- Posts: 10710
- Joined: Mon Oct 13, 2008 11:49 pm
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Re: Went to replace the aircon relay in the BSI but......
Might pay you to look at this post of mine from last year, (which I had forgotten about).
viewtopic.php?f=3&t=15688&hilit=+compressor
Mine is still working perfectly

Mine is still working perfectly
2002 HDi 2.2 Exec Estate, (2008-12) (wonderful)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
Re: Went to replace the aircon relay in the BSI but......
Cheers Doggy, i'll see if the laptop has enough charge for me to find the option and use it, otherwise i'll go with the stand on one leg route....
1997 2.1 TD Exec (Sold)
1997 3.0 V6 Coupe S (Sold)
2001 406 HDi 110 GTX (Sold)
2002 406 Coupe HDi SE (RIP)
2003 406 Estate HDi 2.2 SE (Sold)
2003 406 Coupe HDi SE (To be sold)
2001 406 Coupe 3.0 V6 SE
2003 406 2.2 HDi SE
1997 3.0 V6 Coupe S (Sold)
2001 406 HDi 110 GTX (Sold)
2002 406 Coupe HDi SE (RIP)
2003 406 Estate HDi 2.2 SE (Sold)
2003 406 Coupe HDi SE (To be sold)
2001 406 Coupe 3.0 V6 SE
2003 406 2.2 HDi SE
Re: Went to replace the aircon relay in the BSI but......
I'll give that a try aswell, fingers crossed!
Re: Went to replace the aircon relay in the BSI but......
No luck for me!
Going to try to stick 12v on the compressor when i get a chance to see if it kicks in
Going to try to stick 12v on the compressor when i get a chance to see if it kicks in
1997 2.1 TD Exec (Sold)
1997 3.0 V6 Coupe S (Sold)
2001 406 HDi 110 GTX (Sold)
2002 406 Coupe HDi SE (RIP)
2003 406 Estate HDi 2.2 SE (Sold)
2003 406 Coupe HDi SE (To be sold)
2001 406 Coupe 3.0 V6 SE
2003 406 2.2 HDi SE
1997 3.0 V6 Coupe S (Sold)
2001 406 HDi 110 GTX (Sold)
2002 406 Coupe HDi SE (RIP)
2003 406 Estate HDi 2.2 SE (Sold)
2003 406 Coupe HDi SE (To be sold)
2001 406 Coupe 3.0 V6 SE
2003 406 2.2 HDi SE
Re: Went to replace the aircon relay in the BSI but......
can you post a photo of the other side of the pcb and I will see if I can help, relays can be checked easy. Where abouts are you? if you are local I can see if I can help you.
Re: Went to replace the aircon relay in the BSI but......
It's not easy to get at the other side of the PCB, you have to desolder a lot of connectors, I have a spare that I've been playing with.
Re: Went to replace the aircon relay in the BSI but......
Unfortunately the state reset didn't work for me either
there's been a buzzing coming from under the dash occasionally though that cycles on and and off for about 10 seconds then stops, I wonder if it's the relay trying to kick in.
There is a picture of the board in this thread though! http://www.passion406.com/t829-probleme ... 6-hdi-2003

There is a picture of the board in this thread though! http://www.passion406.com/t829-probleme ... 6-hdi-2003
- steve_earwig
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- Location: Jastrebarsko, Croatia http://www.jastrebarsko.hr/lokacija/
Re: Went to replace the aircon relay in the BSI but......
That thread seems to say it wasn't the BSI after all 

Unskilled meddling sin©e 2007
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Re: Went to replace the aircon relay in the BSI but......
Yea it seems so, my french is far from great but seems to me like he's saying something about the fuse box maybe