Seat-belt Buckle Switch(SBBS) is located in driver and passenger side seat. SRSCM checks if seatbelt is buckled by signal of SBBS. SRSCM controls air bag module and BPT differently in accordance with vehicle speed at the moment of collision and signal from SBBS.
The SRSCM sets DTC B1516 if there is any fault in PSBBS circuit.
Item
Detecting Condition
Possible cause
DTC Strategy
? Check Resistance
? Faulty PSBBS circuit.
? Faulty PSBBS.
? Faulty SRSCM.
Enable Conditions
? Ignition "ON"
Diagnostic Time
Qualification
?More than 2 sec
De-Qualification
?More than 10 sec