CLK 270 CDI SRS Light on fault code: B102D

[fredboi]

Hi i'm new to this forum and need some help guy's please.
After replacing the drivers seatbelt (Due to the Re-coil beaking) on my CLK270 CDI and changing the drivers door (After somebody hit my car whilst parked up and drove off) at the same time, the SRS warning message has come on the dash.
I've had it plugged into a Snap-on Diagostic machine at my local garage and cleared all faults apart from Fault code B102D. I've looked on the lists of fault codes on the internet and this one seems to be missing.

Can anyone help?

Thanks

 

[Auto-mobile]

The yellow plug may have been damaged when the belt detonated.

 

[fredboi]

Thanks I'll strip the rear interior and look at the plug. Thanks