sageman's 'barn find' v6 sei s1

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White Exec
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Re: sageman's 'barn find' v6 sei s1

Post by White Exec » Wed Oct 10, 2018 9:14 pm

Had a quick look on Gabor's Circuit Diagram (v2.03 Apr.2018)
viewtopic.php?f=13&t=7592&start=50#p108339
See p.82
7-way black connector in the position you show.
Looks to be part of Suspension (ECU) wiring, and yours looks to have been butchered.
Gabor puts ??? next to it on the diag, so some doubt about what it leads off to.

That connector isn't present on my S2, and unlikely to be a LHD thing, as yours isn't.
Chris
1996 XM 2.5TD Exclusive RP7165 Polar White
2003 RAV4 D4D 2.0 5dr LHD Silver WORKHORSE
1989 BX19RD Delage Red Deceased; 1998 ZX 1.9D Avantage auto Triton Green Company car 1998-2001; 2001 Xantia 1.8i auto Wicked Red Company car 2001-2003

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sageman
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Re: sageman's 'barn find' v6 sei s1

Post by sageman » Wed Oct 10, 2018 10:08 pm

I don’t really know how to read that diagram if I’m honest but seems to me it’s saying either the black 7 or white 18

I don’t think it’s the 7 as I can hear the electrovalvs go

The white 18 however does among other things interior lights which I am having trouble with as you well know
1976 Reliant kitten
1985 Reliant fox Tandy campervan
1998 Peugeot 306 GTI-6
h̶o̶p̶e̶f̶u̶l̶l̶y̶ ̶a̶n̶ ̶X̶M̶ ̶o̶n̶e̶ ̶d̶a̶y̶
1993 XM sei V6

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White Exec
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Posts: 4440
Joined: Fri Mar 11, 2011 7:38 pm
Orga / RP numbers: RP7165
1996 2.5TD saloon, manual, Polar White
Location: ex-Ealing, Cheshire, W.Sussex & Surrey. Now living in Sayalonga (Malaga, Spain)

Re: sageman's 'barn find' v6 sei s1

Post by White Exec » Wed Oct 10, 2018 10:23 pm

The connector on your photo is black, and looks if carries seven wires, some cut.
Did wonder about the EVs (maybe the two large yellows, but that's pure guesswork).
You could try unplugging it, and see what you lose.
Do the various suspension sensors appear to be working?
Very unlikely to be interior lighting, judging by its position.
Chris
1996 XM 2.5TD Exclusive RP7165 Polar White
2003 RAV4 D4D 2.0 5dr LHD Silver WORKHORSE
1989 BX19RD Delage Red Deceased; 1998 ZX 1.9D Avantage auto Triton Green Company car 1998-2001; 2001 Xantia 1.8i auto Wicked Red Company car 2001-2003

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sageman
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Location: norwich

Re: sageman's 'barn find' v6 sei s1

Post by sageman » Wed Oct 10, 2018 10:40 pm

There’s defiantly more than 7 wires on the non chewed side although some might be ground and this block is acting as a grounding point will have a count tomorrow and unplug it too

How can I tell if the suspension sensors are working or not without a Lexia

Diagram seems to show interior lighting being connected to suspension ecu I would argue that’s a possable route... but again I’m no expert
1976 Reliant kitten
1985 Reliant fox Tandy campervan
1998 Peugeot 306 GTI-6
h̶o̶p̶e̶f̶u̶l̶l̶y̶ ̶a̶n̶ ̶X̶M̶ ̶o̶n̶e̶ ̶d̶a̶y̶
1993 XM sei V6

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xantia_v6
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Re: sageman's 'barn find' v6 sei s1

Post by xantia_v6 » Thu Oct 11, 2018 7:33 am

White Exec wrote:
Wed Oct 10, 2018 8:59 pm
Info on belts replacement, and much else, here:
Private Car Data - XANTIA_XM_EVASION_2001.pdf
That only has data for the ES9 V6, not the PRV engines.
1999 XM Exclusive V6 24V ES9 Manual (LHD) 99,000 km
1997 Xantia Exclusive V6 (RHD) 45,000 miles

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White Exec
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Re: sageman's 'barn find' v6 sei s1

Post by White Exec » Thu Oct 11, 2018 7:59 am

I didn't notice that. Do you have the appropriate info, Mike?
Last edited by White Exec on Thu Oct 11, 2018 8:08 am, edited 2 times in total.
Chris
1996 XM 2.5TD Exclusive RP7165 Polar White
2003 RAV4 D4D 2.0 5dr LHD Silver WORKHORSE
1989 BX19RD Delage Red Deceased; 1998 ZX 1.9D Avantage auto Triton Green Company car 1998-2001; 2001 Xantia 1.8i auto Wicked Red Company car 2001-2003

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xantia_v6
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Re: sageman's 'barn find' v6 sei s1

Post by xantia_v6 » Thu Oct 11, 2018 8:04 am

White Exec wrote:
Thu Oct 11, 2018 7:59 am
I didn't notice that. So you have the appropriate info, Mike?
No, I don't have anything much for the S1 XM.
1999 XM Exclusive V6 24V ES9 Manual (LHD) 99,000 km
1997 Xantia Exclusive V6 (RHD) 45,000 miles

User avatar
White Exec
Citroen God!
Posts: 4440
Joined: Fri Mar 11, 2011 7:38 pm
Orga / RP numbers: RP7165
1996 2.5TD saloon, manual, Polar White
Location: ex-Ealing, Cheshire, W.Sussex & Surrey. Now living in Sayalonga (Malaga, Spain)

Re: sageman's 'barn find' v6 sei s1

Post by White Exec » Thu Oct 11, 2018 8:07 am

Going from Gabor's diagram of the 7-way black connector, there are indeed more than 7 wires coming out of it.
Pin 5 sprouts more than one wire to Gnd.

As said, this is guesswork, but some of the wires are not cut through (two thick yellow, two brown), so some functionality should still be there.

On the Gabor diag (equivalent Citroen diagrams show exactly the same), that 7-way connector links the following to the Suspension ECU:
- brake pressure sw
- rear EV
- front EV
- body movement sensor
- and Gnd connections to m1 and the ECU.

See what happens when you unplug it.

The door switches (for interior lights) do link via the white 18-way connector to the Susp ECU, and this is to signal to the ECU that a door/boot has been opened, and to switch car into Soft mode. There is also the (Gnd) connection to the interior lights (see p.65), supplied by #598 (int lights control).

Monitoring behaviour of suspension sensors and Suspension ECU
Without Lexia, it's not easy to tell (when driving) whether the various sensors are working as they should.
One way of doing it is to wire in a couple of LEDs, to come on when the front and rear EVs are energised (putting the car into Soft).
XM EV Protection Diodes and LEDs v2.pdf
There is also a good bit of info on the forum about adding these LEDs. They need not be 'permanently' wired into the cabin/dash, but can be a temporary installation, if preferred.
If you can post details (identfying version/numbers) of your Suspension ECU (see the label on it), we should be able to tell you which of its connector cables to tap into.
With the LEDs connected and working, it is possible to test each one of the sensors while driving.
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Chris
1996 XM 2.5TD Exclusive RP7165 Polar White
2003 RAV4 D4D 2.0 5dr LHD Silver WORKHORSE
1989 BX19RD Delage Red Deceased; 1998 ZX 1.9D Avantage auto Triton Green Company car 1998-2001; 2001 Xantia 1.8i auto Wicked Red Company car 2001-2003

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sageman
Knows how to use the parking brake
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Location: norwich

Re: sageman's 'barn find' v6 sei s1

Post by sageman » Thu Oct 11, 2018 6:42 pm

I was wrong seems there is only 7 on each side of the connector
However

On each side the colours change
In order (there’s numbers inside the connector)

Green green green green brown yellow yellow
But on the other side
Green brown brown brown brown yellow yellow

Only the last four remain
The two yellow are hydroactive which both appear to work (or at the very least make a loudish thunk)

As for the brake pressure switch I’m sure before I got my hydrolics pressireised I was getting two pressure warnings one for hydrolics and one for brake I assume there must be another brake warning circuit somewhere because how I’m reading that diagram it shouldnt be connected

I have taken a photo will put it up later
1976 Reliant kitten
1985 Reliant fox Tandy campervan
1998 Peugeot 306 GTI-6
h̶o̶p̶e̶f̶u̶l̶l̶y̶ ̶a̶n̶ ̶X̶M̶ ̶o̶n̶e̶ ̶d̶a̶y̶
1993 XM sei V6

User avatar
White Exec
Citroen God!
Posts: 4440
Joined: Fri Mar 11, 2011 7:38 pm
Orga / RP numbers: RP7165
1996 2.5TD saloon, manual, Polar White
Location: ex-Ealing, Cheshire, W.Sussex & Surrey. Now living in Sayalonga (Malaga, Spain)

Re: sageman's 'barn find' v6 sei s1

Post by White Exec » Thu Oct 11, 2018 7:14 pm

A few steps forward, finding that those large yellows look like the EV supply lines!
Actually, very handy finding them there, as they provide two hugely convenient points to wire in the LEDs suggested above - much easier than having to do this at the ECU box. Lucky you!

Quite common to find a colour change from one side of a connector to the other.

Brake/hydraulic pressure switches
There are three on the car:
1 - Rear brake lights: switch is built into the brake pedal rubber pad. It closes as soon as your foot touches the pedal. See p.55 on Gabor's circuits, #319 Brake Pedal. This switch also trips out cruise control, if fitted.
2 - Main system hydraulic pressure switch: Located under the car, at the rear LH edge of the front subframe, this pressure switch (p.35, #672 Hydr Pressure) monitors the suspension/brake hydraulic line pressure, and triggers the Pressure Warning on the LH display if pressure is low.
3 - Brake line pressure switch: This pressure switch (p.84, #670) is there to tell the suspension ECU when the brakes are applied firmly, which puts the suspension rapidly into Firm, to give body stability and prevent 'dive'.

I would suggest you now install the two LEDs (and resistors) detailed in the sheet above, each fed off the yellow wires you have at that 7-way connector, and run to a convenient Gnd point. This will confirm that they are indeed EV lines, and will also allow you to find out whether the other sensors are operating.

To avoid having to run some wiring inside the car for these LEDs (it's no fun trying to get through the firewall), you could try temporarily positioning them here (just under the scuttle cover), so they can be seen from the driver's seat:
.
DSCF3255_1_r.jpg
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Chris
1996 XM 2.5TD Exclusive RP7165 Polar White
2003 RAV4 D4D 2.0 5dr LHD Silver WORKHORSE
1989 BX19RD Delage Red Deceased; 1998 ZX 1.9D Avantage auto Triton Green Company car 1998-2001; 2001 Xantia 1.8i auto Wicked Red Company car 2001-2003

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