Lexia

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pj3107
Can find the S1 radio
Posts: 11
Joined: Sat Jan 06, 2024 12:18 pm
Orga / RP numbers: 7437 3.0 Hatchback Auto Silver

Lexia

Post by pj3107 » Mon Jul 07, 2025 11:42 am

Hi Everyone
Looking for a bit of tech assistance....yes it involves a computer !! ....am looking to purchase a LEXIA DIAGNOSTIC INTERFACE PEUGEOT CITROEN DIAGBOX PP2000 UK Including the PC

Does anyone have experience with this stuff ? It comes with a lead to an OBD2 plug

I would like to know if this thing will communicate with my 97 XM V6 ?

Assume I will need a cable from OBD2 to 30 pin ? ..one that actually works

So anyone out there that could give me a few pointers it would be much appreciated

xantia_v6
XM Guru
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Location: Christchurch, New Zealand or Beaune, France

Re: Lexia

Post by xantia_v6 » Mon Jul 07, 2025 5:51 pm

The 16 pin to 30 pin adapter cables are not easy to find now. The original Lexia 3 had a 30 pin round connector in the cable, to which was connected either a 30 pin rectangular adapter or a 16 pin OBD2 adapter cable. Later versions did away with the 30 pin round connector and had a OBD2 to 30 pin rectangle converter.

I think that they are hard to find now. I bought mine 15 years ago so can't help much with that.

If you get desperate, you can make your own adapter using an OBD2 socket from a later car and a 30 pin plug salvaged from the wiring harness of a series 1 Xantia, where the same connector happened to be used for a different purpose.

Note that when configured for a car with the 30 pin diagnostic socket, the pins on the OBD2 connector are mostly reassigned for custom purposes, and I have heard of people destroying their Lexia interface by selecting a vehicle of the wrong type.
1999 XM Exclusive V6 24V ES9 Manual (LHD) 115,000 km
1997 Xantia Exclusive V6 (RHD) 51,000 miles

Dieselman
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Re: Lexia

Post by Dieselman » Tue Jul 08, 2025 6:36 am

These might help.
I haven't checked the accuracy of the OBDII to 30 pin connector diagram, yet.
Citroen 30 pin to OBD2.jpg
citroen_obd2.jpg
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