Hi all,

My problem is fixed. It was indeed the overload relay (2/30, relay 105 on Volvo microfiche). That particular relay controls power to : central lock, cigar lighter, radio, heater fan settings (1,2,3,4). In my case central lock system was working because the previous owner had an aftermarket lock and starter system installed. However, as soon as plugged in the relay, everything went back to normal and SRS light was reset. I thought you might want to know.
Ihsan