Lexia or KWP2000? Retro fitting Cruise Control on a Xantia?

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Re: Lexia or KWP2000? Retro fitting Cruise Control on a Xant

Post by xantia_v6 »

From looking at various 406 threads, it should work (with the connections above), and give the functions:
Miles since reset
Instantaneous MPG
MPG average since reset
Fuel range remaining
and temperature if you connect a thermistor
Last edited by xantia_v6 on 29 Jul 2012, 22:09, edited 1 time in total.

citroenxm
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Re: Lexia or KWP2000? Retro fitting Cruise Control on a Xant

Post by citroenxm »

Soooooo is someone gonna tell or show us were or how to wire it all in??????

PIT
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Re: Lexia or KWP2000? Retro fitting Cruise Control on a Xant

Post by PIT »

Wiring for Xantia II

Top connector:
1 - Battery -> pin 1 from digital clock connector (wire B25C)
2 - Ground -> pin 2 from digital clock connector (wire M7225)
3 - Accessory -> pin 3 from digital clock connector (wire A30B)
4 - Ignition -> pin 13 from dashboard left (blue) connector (wire C12C)
5 - Illumination -> from cigar lighter bulb connector
6 - Thermistor
7 - Thermistor
13 or 14 - Fuel level - pin 1 from dashboard left (blue) connector (wire 432)

Bottom connector:
5 - Reset button - through a button to Ground
6 - Low fuel - connected to the bulb on the dashboard. This is not mandatory. Its function is to switch the display to Fuel range remaining screen automatically when the low fuel light is on.
10 - Speed -> pin 3 from dashboard left (blue) connector (wire 1628)
12 - ECU fuel consumption info - > according to engine:
  • 2.0 HDI EDC15C2 - pin 63
    2.1 TD Diesel EPIC - pin 23
    1.6 BFZ Magneti Marelli 8P - pin 7
    1.8 8v LFX Sagem SL96 - pin 5
    1.8 16v LFY Magneti Marelli 1AP20 - pin 5
    1.8 16v LFY Bosh MP 5.1.1 - pin4
    2.0 16v RFV Bosh MP 5.2 - pin 4
    3.0 V6 Bosch MP7 - pin 32

citroenxm
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Re: Lexia or KWP2000? Retro fitting Cruise Control on a Xant

Post by citroenxm »

As simple as that.. well bowl me over with a feather... So i need an early 406 trip computer display and plug now??

PIT
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Joined: 25 Jul 2012, 09:24

Re: Lexia or KWP2000? Retro fitting Cruise Control on a Xant

Post by PIT »

Yes.
This is the wiring that I used. Many of the connections can be made on another place - pin 1 to 5 can all be taken from the dashboard (Not sure about the pins but I think they should exist there)

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citroenxm
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Re: Lexia or KWP2000? Retro fitting Cruise Control on a Xant

Post by citroenxm »

Fantastic.. now to find an early 406 trip computer...

next up the cruise control.. shall await for your findings..

addo
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Post by addo »

The trip computer info is just brilliant. Many thanks indeed.

PIT
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Joined: 25 Jul 2012, 09:24

Re: Lexia or KWP2000? Retro fitting Cruise Control on a Xant

Post by PIT »

Just installed the CC stalk and button. Enabled it from LEXIA. Driving home after work will be the moment of truth :)

For the trip computer, be careful. There are two types of display. One of them is only with a temperature display. You need he one with 2 light bulbs, two raw connector and 4 position switch on the side.
http://postimage.org/image/2h33e51ms/" onclick="window.open(this.href);return false;
http://postimage.org/image/2h351oe4k/" onclick="window.open(this.href);return false;

citroenxm
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Re: Lexia or KWP2000? Retro fitting Cruise Control on a Xant

Post by citroenxm »

My guess is it wont work.. you will need to bridge the clutch pedal connection and possibly brake pedal unless the ecu uses the brake light wires instead...

PIT
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Joined: 25 Jul 2012, 09:24

Re: Lexia or KWP2000? Retro fitting Cruise Control on a Xant

Post by PIT »

I have made all the connections according to the Peugeot schematic, but it didn't work :)
No connections were checked after making them, so there might be an error somewhere.
The clutch is already connected to the ECU. The primary brake switch also. Only the NC brake switch and the three wires from the stalk were missing.
I made the NC brake switch with relay to the primary brake switch.
Just need to check everything tomorrow.

EDIT:
One problem found - no positive signal to the relay :)
Fix will be performed at lunch time.

EDIT2:
Fixed.
Test after a few hours... Can't wait... :)

PIT
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Re: Lexia or KWP2000? Retro fitting Cruise Control on a Xant

Post by PIT »

AND IT WORKS!!! :)
A button, stalk, 4 wires, one relay and LEXIA is all that you need. :) But you need to have that possibility in the HDI ECU.

citroenxm
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Re: Lexia or KWP2000? Retro fitting Cruise Control on a Xant

Post by citroenxm »

FAN BLOODY TASTIC!!!

Can you put up what exactley you have done and HOW you have done it!! Ive got Stalks.. from XM's.. where is the relay you have put in and what four wires.. :lol: :P

citroenxm
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Re: Lexia or KWP2000? Retro fitting Cruise Control on a Xant

Post by citroenxm »

Disapointment... removed my steering cowling and blanking plug and theres no plugs or wireing to put in a switch and cruise stalk...

so do i need to make all that up..???

PIT
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Re: Lexia or KWP2000? Retro fitting Cruise Control on a Xant

Post by PIT »

On the left side of the steering wheel there should be a yellow plug with 4 pins. It is for the switch.
The plug for the stalk was on the right up side behind the transponder and ignition switch. It was in а foam, brown with 5 pins.
If you can not find them, you can check between the front seats under the back window buttons. I have a big 15 pin plug for CC module which is used on petrol engines.
http://postimage.org/image/7o1qvdwhf/" onclick="window.open(this.href);return false;
If you do not have it, may be you don't have CC wiring and you need to make it.

This is the place where the wires from the stalk connector go. I just soldier 3 wires next the the stalk plug for the three switches and send them to the ECU (see the schematic). The other 2 pins on the stalk plug are connected to the button just as on the 406 schematic, so no change was made there.

The forth wire and the relay are for the normal closed brake switch - 7308 on the schematic.
This is how it is connected to the brake pedal. (sorry for the ugly picture but no time for better :) )
http://postimage.org/image/5kmjhtc39/" onclick="window.open(this.href);return false;

citroenxm
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Re: Lexia or KWP2000? Retro fitting Cruise Control on a Xant

Post by citroenxm »

Those plugs arent there... time to look for a newer one i think.. ive got the exclusive hdi and my rp number is 100 cars away from the later configure ecu.. time for a Y plater if i can afford one.. having said that if i knew ALL the wiring connections id make the harness.. i work in a harness manufacturing place...