E61 2006- air bag light on again

I have a 530d, I had the codes read, came up with passengers seat Matt, so fitted occupancy bypass, had the light switched off, all fine. Last night I stopped the car, switched the engine off, then switched ignition on straight away, so basicly pressed the button twice quickly. Engine stopped, dash lights off then back on. Air bag light now on message on idrive???? I also seem to have faults stored on the car they all seem to be coms as if the car forgets to talk to the modules??? Could this be connected?

 

For the E61 you need to have the mat bypass modules that replace the mat and fool the passenger side seatbelt. I have a set I was going to install, but clearing the codes was all it took. The error must have kicked in when the battery went dead.

Jose