Got a replacement unit same part number, using the B800 reset tool I have come up with Table 38 table 02 codes 4 firing circuit, driver air bag and code Oc firing circuit head airbag, front left side. Had both seats out as most related problems with air bag light are related to this light,I tried all the connections and cleaned them, any one know where to go now. Not familiar with what these codes represent, cannot find a thread relating to these particular codes,any help would be appreciated.Z3 2 ltr 6 cylinder year 2000. I noticed when I took out passenger seat it had an extra connection (white terminal block) next to the yellow block tha t goes to the seat restraint which didn’t go any where, but not present on the drivers side.