B0071 indicates a malfunction within the deployment control circuit for the center seat belt pretensioner in the first row. This safety system component tightens the seat belt during a collision to restrain occupants. The vehicle's restraint control module has detected an electrical irregularity preventing proper operation.
Movement of the seat often damages wiring harnesses or loosens connections near the pretensioner.
Wires running to the center seat belt buckle may be frayed, pinched, or broken.
The internal squib or resistance within the pretensioner mechanism itself has failed.
Moisture or age can cause high resistance in the circuit connectors.
The module monitoring the system has an internal circuit fault.
Structural or sensor damage from a prior incident affects the circuit.
No, this code relates to the restraint system module, not the engine control unit.
The vehicle will operate normally, but the seat belt pretensioner may not function in a collision.
While codes can be cleared, the light will return if the underlying electrical fault is not repaired.
This is incorrect advice as B-codes are body system issues unrelated to the powertrain control module.