it wont be a bulb if its lit and giving the code. As you've said either it will be the pre tensioner on the seat or the slip ring behind the steering wheel. Generally it will be a break in either wire. Repair or replace. No need for fancy over priced ebay connections. Either solder the connection and heat shrink it or replace with parts from a breaker. Worth noting the code will remain even when the issue is fixed until it is coded outOriginally Posted by Fogey