I need help wiht bsm citroen c5 hdi

[jjas40]

hi
I need help with bsm citroen c5 hdi year 2001.
BSM-A3 SIEMENS S11050001E

I am sure that this module does not work.
the car turns on the lights, clean moons, indicators ...... at will.
appears to be a bad contact in bsm.
when I touch the module by hand everything works fine.
I have not seen any bad welding.
any of you know this fault?
breakdown may be common in these cars?
thanks

[grinovsky]

poor contact at the connectors (oxidation)
or at the welding point in the BSM