Do you happen to know what the trouble code number is? There are only ten but I haven't been able to find the SRS control module "activated" code. According to Alldata, they are:

1 - No fault stored in memory
2 - Control unit
3 - Ignition circuit, driver's airbag
4 - Ignition circuit, front passenger's airbag
5 - Driver's belt lock
6 - Front passenger's belt lock
7 - Resistor, front passengers seat, airbag
8 - low voltage
9 - Control lamp
10 - Control unit

If your mechanic is talking about either 2 or 10, a new module is required. I can post the diagnostic procedure for your particular code if your mechanic doesn't know how to proceed.