Laguna II 2.0 automatic airbag problem *** Solved ***

Hi my laguna II 2.0 automatic have an airbag problem with B100D, B100E, B100F, B1010 and B1044 error codes. I have checked many wirings and made some diagonostics but no solution yet. Here is the error codes explanations:
B100D rear driver throax side airbag circuit
B100E rear passenger throax side airbag circuit
B100F
B1010
B1044 airbag ecu.
Is this an ecu problem? My airbag ecu was removed when I bought the car and I got a used one with the 8200410977 oem number. I know it looks like funny...

Laguna II 2.0 automatic airbag problem *** Solved ***

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