What does code B0072 mean?

Q: What does code B0072 mean?

Driver Seatbelt Pretensioner Loop Open. B0072 indicates that the restraint control module has detected an open circuit in the driver seatbelt pretensioner loop, meaning the electrical path through the pretensioner squib is broken. The module monitors a small test current through the loop and sets this code when the circuit resistance is higher than expected or the circuit is completely open.

DTC codes / B00xx · Airbags, seats, doors, lights and comfort systems / B0072

B0072Driver Seatbelt Pretensioner Loop Open

B0072 indicates that the restraint control module has detected an open circuit in the driver seatbelt pretensioner loop, meaning the electrical path through the pretensioner squib is broken. The module monitors a small test current through the loop and sets this code when the circuit resistance is higher than expected or the circuit is completely open.

SystemBody

Code typeGeneric (all makes)

SeverityHigh

Fix difficultyProfessional

AreaAirbags, seats, doors, lights and comfort systems

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.