What does code B0046 mean?

Q: What does code B0046 mean?

Left Curtain Deployment Loop Open. B0046 means the restraint control module has detected an open circuit in the left side curtain airbag deployment loop, so the circuit cannot fire the inflator as designed. The module monitors loop resistance and continuity, and it sets this code when the measured resistance is far above the expected range or the circuit is completely broken.

DTC codes / B00xx · Airbags, seats, doors, lights and comfort systems / B0046

B0046Left Curtain Deployment Loop Open

B0046 means the restraint control module has detected an open circuit in the left side curtain airbag deployment loop, so the circuit cannot fire the inflator as designed. The module monitors loop resistance and continuity, and it sets this code when the measured resistance is far above the expected range or the circuit is completely broken.

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.