I have a 2000 4Runner with 270k miles and recently noticed the Airbag light flashing I pulled the codes I got a B0131 for open circuit on passenger seatbelt pretensioner. I checked the repair manual it takes me to diagnosing the circuit, Airbag Sensor Assembly, and P/T Squib. Not much to it these trucks are very old now before I diagnose it whats the chances I will have to send my seatbelt for rebuild? Anyone had such problem?