Hi, I'm having a bit of trouble with my 2003 vectra dti.

I had it scanned the other day with op-com because my airbag light came on. but the op-com would not connect to alot of the ecu's airbags,DIS,Body control module,etc...

But the problem I'm having is after the scan the spanner light came on constant. And the present code I'm getting is U2106 no communication to transmission control module. But my car is a manual not auto.

I'm useless with car electrics and code readers so any info is much appreciated.