Citroen Xantia clima ECU

[eliberatoro]

Hi !

I have problem with an Xantia hdi clima controller ECU. I can not test it with lexia. The part number is 9635623080 / RFTD 661613N. I change the ecu but the same result. If I connect an older clima ecu RFTD 660463N 962741828006 than I can test it but the heat/AC flap can not be memorated and it works reverse. (it blows cold whet it set to hot)

It have some trick to test these ecus or I just pick two bad of them ?

[Liteace]

1, (it blows cold whet it set to hot)


2, It have some trick to test these ecus or I just pick two bad of them ?




1, Is that not normal on french s**te

2, Probably

[eliberatoro]

Thanks, but 1. it is an older revision ecu with totaly different hardware so it is not a mireacle it is works rewerse. It was used another type of DC motor.

[eliberatoro]

Here is a pic of the 2 type of ecu

View image: IMG 6425 (http://postimage.org/image/1vwg4lap0/)

[ominimicu]

could be that MOSFET. test it out. Mosfet check procedures can be found on google, you just need a multi-metre.

I sugges though replacing it with an ECU, that looks the same inside.

[eliberatoro]

Thanks!

As I wrote I changed with a same ECU and the result is the same. I measure that fet and it is ok. I even wach the signal an a oscope and the ecu is respond to the tester, so the communication is ok.
Maybee some bug with the chinese Actia/Lexia3 interface ?

[eliberatoro]

Problem solved....

LEXIA3 (chinese bulls*****t) has a bug. Can not communicate with the clima ecus from `99 Xantia Xsara (RFTD661613N)