SRS DTCs for 400E
 

I am getting a number of SRS codes on my N2/2 control module (socket 30) and they have returned after clearing them. I'm getting DTC 2, 3, 4, 5, 6, 8 and 9. I am not getting a red SRS light on the cockpit display, though. A few months ago, I removed the passenger front seat to carry something in my car and I observed that the red SRS light was coming on, because I unplugged the harness under the seat. When I reinstalled the seat and ran the car, the SRS light went out. I just noticed a recent post that would suggest that a special tool is required to reset SRS codes. Is this true on the 124 as well? I can't imagine all those DTCs with no SRS light in the cockpit. Any ideas?