Xantia 2.1TD 1997 - Keypad/immobiliser

This is the Forum for all your Citroen Technical Questions, Problems or Advice.

Moderator: RichardW

User avatar
xantia_v6
Forum Admin Team
Posts: 9052
Joined: 09 Nov 2005, 22:03
Location: France or NewZealand
Lexia Available: Yes
My Cars: -
1997 Citroen Xantia V6 (France)
1999 Citroen XM V6 ES9 (France)
2011 Peugeot 308 CC THP 155 (NZ)
1975 Jaguar XJ-S pre-HE (NZ)
x 825

Re: Xantia 2.1TD 1997 - Keypad/immobiliser

Post by xantia_v6 »

The other box with the ECU should be the suspension ECU (assuming that you have hydractive suspension...)
There is a component location diagram for the 1997 V6 linked from this topic: viewtopic.php?f=3&t=40570&p=326638 I think that the 2.1 locations are fairly similar.
If you look at the fuse board, near the top (furthest from the pedals), you will see a red plastic tab. You pull on that to release a latch and then that end of the fuse board should drop a little, allowing the other end to be unhooked and the assembly dropped. There is very little clearance, and the number of wires makes it a very awkward operation.
User avatar
white exec
Moderating Team
Posts: 7445
Joined: 21 Dec 2015, 12:46
Location: Sayalonga, Malaga, Spain
My Cars: 1996 XM 2.5TD Exclusive hatch RHD
1992 BX19D Millesime hatch LHD
previously 1989 BX19RD, 1998 ZX 1.9D auto, 2001 Xantia 1.8i auto
and lots of Rovers before that: 1935 Ten, 1947 Sixteen, 1960 P5 3-litre, 1966 P6 2000, 1972 P6 2000TC, and 1975 P6B 3500S
x 1752

Re: Xantia 2.1TD 1997 - Keypad/immobiliser

Post by white exec »

Details for 2.1TD (XUD11BTE) injection-ignition, from Xantia manual.
Might be of help with component location.
Xantia XUD11BTE 2.1TD injection-ignition _1.jpg
Xantia XUD11BTE 2.1TD injection-ignition _2.jpg
Xantia XUD11BTE 2.1TD injection-ignition _3.jpg
Chris
martin churchill
Posts: 12
Joined: 23 Jun 2019, 14:25
Location: Portugal
My Cars: Citroen Xantia Break 2.1TD
x 1

Re: Xantia 2.1TD 1997 - Keypad/immobiliser

Post by martin churchill »

the car now starts but I now have another fault.
car ticks over at 1600rmp and will not rev over 2400rpm .. TPS to ECU connections are OK. Is there a relay for the injector pump or should I look at the wiring on the pump..?
I did not have this fault before the keypad problem.It is possible that I have broken I wire from the ECU to the pump.

Could admin move this to the appropriate page if necessary.
User avatar
xantia_v6
Forum Admin Team
Posts: 9052
Joined: 09 Nov 2005, 22:03
Location: France or NewZealand
Lexia Available: Yes
My Cars: -
1997 Citroen Xantia V6 (France)
1999 Citroen XM V6 ES9 (France)
2011 Peugeot 308 CC THP 155 (NZ)
1975 Jaguar XJ-S pre-HE (NZ)
x 825

Re: Xantia 2.1TD 1997 - Keypad/immobiliser

Post by xantia_v6 »

What did you do to get the engine running?

I would advise that you should get some Lexia diagnostics. The EPIC pump is entirely controlled and monitored by the ECU, so it is difficult to pinpoint running symptoms without knowing the fault codes or live data.
martin churchill
Posts: 12
Joined: 23 Jun 2019, 14:25
Location: Portugal
My Cars: Citroen Xantia Break 2.1TD
x 1

Re: Xantia 2.1TD 1997 - Keypad/immobiliser

Post by martin churchill »

Thank you . This could be difficult for me because of my location in portugal .
\
If I change the pump, would I have any problems with the keypad and coding or is it a straight forward job to swap out the pump?
User avatar
xantia_v6
Forum Admin Team
Posts: 9052
Joined: 09 Nov 2005, 22:03
Location: France or NewZealand
Lexia Available: Yes
My Cars: -
1997 Citroen Xantia V6 (France)
1999 Citroen XM V6 ES9 (France)
2011 Peugeot 308 CC THP 155 (NZ)
1975 Jaguar XJ-S pre-HE (NZ)
x 825

Re: Xantia 2.1TD 1997 - Keypad/immobiliser

Post by xantia_v6 »

The EPIC pump is not coded, but probably needs to be matching a PSA 2.1 engine for the calibration to be correct.
martin churchill
Posts: 12
Joined: 23 Jun 2019, 14:25
Location: Portugal
My Cars: Citroen Xantia Break 2.1TD
x 1

Re: Xantia 2.1TD 1997 - Keypad/immobiliser

Post by martin churchill »

I've spent most of the day looking for a garage with a diagnostic at will fit , so far i'm out of luck. The 2.1 citroen for parts is 100+ miles away so now looking for a 406 peugeot. Checking all the connection again first. I must have loosend or broken one.
Had a quick check of the pump wires. [plug to pump] pins, 9,10,11,12 & 13 are all connected as are 3,4,& 5.which are earthed to the body.
Am I missing something? or is it just a crossed wire?
User avatar
moizeau
(Donor 2022)
Posts: 1580
Joined: 12 Jan 2015, 16:08
Location: France 36
My Cars: 91 BX TZD Estate. Dead but loved
407 HDI 136 auto
C4 2l petrol coupé
2010 Dispatch III HDI 90
AND a 1980 Z1000ST
AND a 1983 GPz1100 inj
AND a 1995 Zephyr 1100
AND a 1980 Z650 (my moped)
x 315

Re: Xantia 2.1TD 1997 - Keypad/immobiliser

Post by moizeau »

The PSA Epic is interchangeable between the Xantia and the 406. I have a Xantia one on my 406. There are two issues with the pump. The most common are the Viton o rings. When they get old they don't seal. This is shown up by an unstable idle and / or cutting out at low revs. Their condition can also lead to leaks, more of a gentle weep really. This can be seen as a small pool of diesel that collects around the timing belt tensioner spring or by putting your hand on the underside of the pump. The other issue is the harness as I previously mentioned. This will cause issues different than the idle / cutting out. The only way to identify this, to my knowledge, is with a Lexia. It can be re-wired but is a pig of a job. New harnesses are available for 200 euros and it's still a pig. I spliced in 13 replacement wires. The chances of finding a good secondhand one is slim to say the least. Your other option is a mechanical Bosch conversion as found on some Xantias and XMs. Again, not a 5 minute job.
Good luck, I know the pain.
Pete
Notice the BX is still top the list but sadly gone
martin churchill
Posts: 12
Joined: 23 Jun 2019, 14:25
Location: Portugal
My Cars: Citroen Xantia Break 2.1TD
x 1

Re: Xantia 2.1TD 1997 - Keypad/immobiliser

Post by martin churchill »

UP DATE......
After reading a thread about air in the injector pump I decided to check .. Yes one massive air lock.. Bleed and start, It ran like a bucket of nut, Foot down and sweet as a nut.. not bad for a car with 478,000 km...
A big THANK YOU to every one's input without which the car would have been scrapped.
Respect........Martin
Post Reply