Two questions here, the first regarding the heated seat regulation. Is it based on a simple voltage drop series shunt or is there some sort of complicated pulse width modulation thing going on?
The reason I ask is that having just repaired the back pad in my drivers seat I checked out the voltage on the connector as the seats only seem to have been working on full power for quite some time. On setting 3 there is the expected 13.7 volts, but on the lower two settings, no volts. If it isn't a simple series regulator then I'm thinking maybe I have to wait for the regulator to kick in. Speaking of which, does anyone know where it is?
Secondly, the location of the indicator flasher is eluding me. I can hear that it's somewhere under the steering column but can't seem to see it by just removing the felt trim. Before I start pulling more bits off can someone give me a definite idea of its location?
V6 Xant hot seat regulator and flasher
Moderator: RichardW
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V6 Xant hot seat regulator and flasher
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Lexia ponce
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Lexia ponce
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MMmm, tried that, none of them vibrate. AFAIK I'm looking for a grey relay, I know it's in there somewhere, but none of the ones that are visible/feelable seem to be it.
It infuriates me to be wrong when I know I'm right
Lexia ponce
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Lexia ponce
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- CitroJim
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Should be one of the ones tucked right back in under.. With the indicators on, hold a screwdriver to your ear and use it as a stethoscope...xantia_v6 wrote:To clarify, it is one of the relays (grey or black) next to the under-dash fuses.
The seat regulation is done electronically but how I'm not too sure as I've never dared to dissect a leather seat to find the controller. All I know is the regulator controls are just small switches that select different values of resistors to determine the heat. The switches themselves are quite flimsy and the contacts run around a PCB track. They're not hard to disassemble and being so flimsy, regular use is sure to wear out the tracks and open-circuit them at some settings.
The wiring diagrams are not very forthcoming, just showing an ECU in each seat and a few wires going to the regulator switches.
Jim
Runner, cyclist, time triallist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
Runner, cyclist, time triallist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
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Thanks all
It may just be then that if the ambient temperature is too high then the regulator wont even turn the seat heat on unless you have it on full blast, which I would presume just overrides the regulator.
So the regulator is an ECU in the seat I worry that things can sometimes be a little too complicated for their own good.
It may just be then that if the ambient temperature is too high then the regulator wont even turn the seat heat on unless you have it on full blast, which I would presume just overrides the regulator.
So the regulator is an ECU in the seat I worry that things can sometimes be a little too complicated for their own good.
It infuriates me to be wrong when I know I'm right
Lexia ponce
http://perception.dyndns.biz/~avengineering/index.htm
Lexia ponce
http://perception.dyndns.biz/~avengineering/index.htm
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- Posts: 1626
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Renault Kangoo 1.6 auto, tarted up and remapped
Still missing the Xantia V6
Not missing the AX - Contact:
It infuriates me to be wrong when I know I'm right
Lexia ponce
http://perception.dyndns.biz/~avengineering/index.htm
Lexia ponce
http://perception.dyndns.biz/~avengineering/index.htm
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- Posts: 1626
- Joined: 26 Feb 2004, 23:21
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- My Cars: C5 V6 Mk1 assainated by wife
Renault Kangoo 1.6 auto, tarted up and remapped
Still missing the Xantia V6
Not missing the AX - Contact:
Yes I'm all sorted now. Thanks
Did some further testing of the seats, and now all the pads are working I've discovered that they do actually get warm on setting 2 at least. There seems to be some kind of time/thermostatic cycle going on so that they are not supplied with continuous current as they are when set to full.
Did some further testing of the seats, and now all the pads are working I've discovered that they do actually get warm on setting 2 at least. There seems to be some kind of time/thermostatic cycle going on so that they are not supplied with continuous current as they are when set to full.
It infuriates me to be wrong when I know I'm right
Lexia ponce
http://perception.dyndns.biz/~avengineering/index.htm
Lexia ponce
http://perception.dyndns.biz/~avengineering/index.htm