Thank you for this link.
I have followed the diagnostic procedure step by step, but I don't know what I can do with the results.
All the displayed codes were ok excepting the following:
STEP THREE :
The returned code is always the same as the one obtained with the previous test.
STEP FOUR :
33 instead of 32
2- 1З (З = reverse E ;-)) instead of 2b
3- 5b instead of 62
4- 8З instead of 94
There is no interpretation of these results on the procedure...
What can I do ?