Passenger Airbag Status Circuit Low

The car's computer is reading a low voltage signal from the passenger airbag sensor, which should normally read around 3 to 5 volts when the airbag system is operational and the seat is occupied.

The airbag control module expects a voltage value that indicates the passenger seat's presence. A value below 1 volt suggests a low signal, indicating either an unoccupied seat or a fault in the sensor/wiring.

Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.

1. 11. Inspect the wiring and connectors for any damage or corrosion, especially under the seat.
2. 22. Check the input voltage at the occupancy sensor with the key on and seat occupied; expect 3-5V.
3. 33. If voltage is low, disconnect the sensor and measure the resistance across the sensor pins; should show the circuit is closed when occupied.
4. 44. If the sensor is faulty (no resistance when occupied), replace it and clear the code.
5. 55. If the sensor checks out, inspect the airbag control module connections, look for any faults there.

• Faulty passenger airbag occupancy sensor
• Wiring issues or a short in the circuit
• Bad connector or poor contact at the sensor or control module
• Faulty airbag control module

$$$