Cruise control works... nope it doesn't... yep it does! etc.

Talk about the 406's electrical system, what wires do what, how to add extra functionality, etc.

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OdinEidolon
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Cruise control works... nope it doesn't... yep it does! etc.

Post by OdinEidolon »

My cruise control has started giving problems last week. It simply didn't work. I thought it was the switches then coming back home all was fine again. It's been like this for a week.
I turn on the car, start, it doesn't work. I get where I need to using my right foot like good old times then when coming back home it works again. Or the other way around.

It just is like the rest of the car: aircon not working one day every 10, radio staying on after shutdown once every three travels. (average figures)
I can live with the aircon (BSI going mad?) and radio (dry solder joints somewhere?) but I really don't know what could be causing the cruise control issue. If it was the switch it'd do that all the time?
2001 2.2HDi saloon Executive (not the English exec, worse!) in Obsidian Black. Semi-Mux D9, build code 8761
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Doggy
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Re: Cruise control works... nope it doesn't... yep it does!

Post by Doggy »

Mine has done the same thing from time to time, but strangely, not for the last year or so......

Logic does not always apply in the Peugeot universe. :roll:
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OdinEidolon
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Re: Cruise control works... nope it doesn't... yep it does!

Post by OdinEidolon »

dogslife wrote:Mine has done the same thing from time to time, but strangely, not for the last year or so......

Logic does not always apply in the Peugeot universe. :roll:
Bah, I'll try to see if the switches are ok or maybe it's the hot weather or the car that's on it's period... :mrgreen:
Is the cc somehow related to the BSI? I don't think so right?
2001 2.2HDi saloon Executive (not the English exec, worse!) in Obsidian Black. Semi-Mux D9, build code 8761
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Doggy
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Re: Cruise control works... nope it doesn't... yep it does!

Post by Doggy »

On later cars the BSI is involved, I think because the cc stalk is part of the COM2000, so for the info to reach the engine ecu, (which actually does the controlling), it has to pass through the BSI to get there......
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)
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OdinEidolon
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Re: Cruise control works... nope it doesn't... yep it does!

Post by OdinEidolon »

dogslife wrote:On later cars the BSI is involved, I think because the cc stalk is part of the COM2000, so for the info to reach the engine ecu, (which actually does the controlling), it has to pass through the BSI to get there......
Yep but mine is pre-multiplex, so no COM2000 there. I have the thin stalks. Not involved then?
2001 2.2HDi saloon Executive (not the English exec, worse!) in Obsidian Black. Semi-Mux D9, build code 8761
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Doggy
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Re: Cruise control works... nope it doesn't... yep it does!

Post by Doggy »

No, I don't think so, Adriano.
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)
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2007 BMW E91 325i touring (slower smoother quieter)
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OdinEidolon
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Re: Cruise control works... nope it doesn't... yep it does!

Post by OdinEidolon »

dogslife wrote:No, I don't think so, Adriano.
Sad, I was somehow hoping a BSI reset could magically solve all my problems. But as I recently said on the italian forum, the car is just so powerful, comfortable, enjoyable, economical to run that I can forgive these glitches.
2001 2.2HDi saloon Executive (not the English exec, worse!) in Obsidian Black. Semi-Mux D9, build code 8761
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FarmerPug
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Re: Cruise control works... nope it doesn't... yep it does!

Post by FarmerPug »

i have the same problem
the cruise control when it does feck about works on alternate journeys, i found the way to make the non working journey working again, i pulled in turned off the car and waited for 2 minuites the time it takes for a click round the fuse box, then off i went again the cruise control worked again. But i have a fault coming up on the pp2000 coherence between the 2 brake signals, it could be one of the pedal switches needs looked at (but im not sure how to get them out to test and clean) and the other day when cleaning the fog lights i noticed a wire cut that goes to the front brakes which may affect the cruise control.
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Re: Cruise control works... nope it doesn't... yep it does!

Post by Captain Jack »

FarmerPug wrote:it could be one of the pedal switches needs looked at (but im not sure how to get them out to test and clean).
That's what mine was. The cable going to the switch somehow completely disconnected itself resulting in a permanent non-cruise control mode. It's not difficult to get to it - you need to undo two massive torx 50 bolts holding the steering column and then gently prise prise it out. You will see two switches on the brake pedal - one for brake (left) and one for cruise (right). Also, they have a tendency to move too far out, so push them back in and pull the brake pedal towards you to "seat" them.
2003 - 2008: 1998 Peugeot 406 2.1 TD 110bhp LX Saloon
2008 - 2009: 2004 Honda Accord 2.2 CDTI 136bhp Executive Saloon
2009 - 2013: 2002 Peugeot 406 2.0 HDI 110bhp Executive Saloon
2013 - 2021: 2007 Peugeot 407 2.2 HDI 170bhp Executive Saloon (mapped to 213bhp :twisted:)
2021 - ????: 2016 Ford Mondeo 2.0 TDCi 180bhp Titanium
FarmerPug
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Re: Cruise control works... nope it doesn't... yep it does!

Post by FarmerPug »

thanks ill give it a go now i actually have a t50 to remove them bolts.
Do you still have the issue of the rattle in the steering rack? Any risk of this occuring if i undo them bolts?
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Re: Cruise control works... nope it doesn't... yep it does!

Post by Captain Jack »

FarmerPug wrote:Do you still have the issue of the rattle in the steering rack? Any risk of this occuring if i undo them bolts?
I've since found that it was the steering wheel airbag that's rattling - nothing in the steering column. I drove to work and back the other day without the airbag and it was as silent as a mouse. I tried some velcro type padding on the horn springs but it's still rattling occasionally when pulling away. Annoying.... Not quite sure how to resolve that.
2003 - 2008: 1998 Peugeot 406 2.1 TD 110bhp LX Saloon
2008 - 2009: 2004 Honda Accord 2.2 CDTI 136bhp Executive Saloon
2009 - 2013: 2002 Peugeot 406 2.0 HDI 110bhp Executive Saloon
2013 - 2021: 2007 Peugeot 407 2.2 HDI 170bhp Executive Saloon (mapped to 213bhp :twisted:)
2021 - ????: 2016 Ford Mondeo 2.0 TDCi 180bhp Titanium
FarmerPug
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Re: Cruise control works... nope it doesn't... yep it does!

Post by FarmerPug »

i get a bit of a rattle if i pull away in first with no revs and the cars about to stall but it happens to most cars so i dont mind it.
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Captain Jack
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Re: Cruise control works... nope it doesn't... yep it does!

Post by Captain Jack »

FarmerPug wrote:i get a bit of a rattle if i pull away in first with no revs and the cars about to stall but it happens to most cars so i dont mind it.
It's a really loud rattle though. Like a bolt in a can type rattle - annoying :evil:
2003 - 2008: 1998 Peugeot 406 2.1 TD 110bhp LX Saloon
2008 - 2009: 2004 Honda Accord 2.2 CDTI 136bhp Executive Saloon
2009 - 2013: 2002 Peugeot 406 2.0 HDI 110bhp Executive Saloon
2013 - 2021: 2007 Peugeot 407 2.2 HDI 170bhp Executive Saloon (mapped to 213bhp :twisted:)
2021 - ????: 2016 Ford Mondeo 2.0 TDCi 180bhp Titanium
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OdinEidolon
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Re: Cruise control works... nope it doesn't... yep it does!

Post by OdinEidolon »

There's a guide in the coupé forums about fixing the switches.
But if it was that they would just prevent the cc from working all the time, not once every week, right?
2001 2.2HDi saloon Executive (not the English exec, worse!) in Obsidian Black. Semi-Mux D9, build code 8761
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Want a remap? Contact us, learn to do it yourself on ecuedit.com or let the professionals of editecu.com do it for you!

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FarmerPug
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Re: Cruise control works... nope it doesn't... yep it does!

Post by FarmerPug »

can you post a link for that guide please, i might have a go.
You just dont know with a peugoet how often an electrical fault will reoccur.
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