1.9 TD ECU Wiring Diagram needed

Tebster · Post by **Tebster** » 02 Jun 2004, 02:51

Hi,
Has anyone got an ECU wiring diagram for a 1999 xantia 1.9 TD ?
Thanx in advance,
paul

AndersDK · Post by **AndersDK** » 02 Jun 2004, 13:48

Hi Paul,
On the bottom of this page, you find the petrol 1.8 16V ECU connections :
http://citroeny.cz/servis/xantiaser/ele ... ektro.html
I know it's not a diesel ECU, but maybe this may just exactly give you the straw to get on with your problem.

Tebster · Post by **Tebster** » 03 Jun 2004, 01:44

Thank you AndersDK,
This link was very useful, I thought the aircon relay was connected to the main ecu but without a schematic its hard going, however this has given me another avenue to explore with my mad electrical fault, I will now be testing continuity from the relay to the ecu, could it also be possible that the bitron unit is in cahoots with the ecu ??
Regards
Paul

AndersDK · Post by **AndersDK** » 03 Jun 2004, 03:48

Paul, as far as I read the diagrams, the bitron has no connections to the main ECU, other than possibly sharing some of the power & earth feeds.
The Xantia A/C electric installation is reputed to cause grief for many owners. It's far more complex than it really needs to be IMHO.
Even the factory installed A/C electrics in the BX model is fairly complex.
It's caused by a mix of 2 worlds really : automotive electric engineers way of thinking + a fairly standard refrigiration setup.