Passenger Airbag Activation Signal Circuit High
This code means the passenger airbag status circuit is detecting a high voltage issue.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The airbag system has sensors that monitor for faults. If it sees too much voltage, it thinks there’s a problem, which could stop airbags from working properly.
What the computer is actually seeing
The airbag control module monitors the voltage on the passenger airbag activation circuit. It’s expecting a 0.5V to 5.0V range. If it sees a voltage above 5.0V, it triggers this code.
What a healthy reading looks like
0.5V - 5.0V for normal operation.
Guided diagnostic — the DiagCoach way
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.
- 11. Inspect wiring and connectors for damage or corrosion around the airbag circuit.
- 22. Check the voltage at the passenger airbag activation signal circuit; it should be between 0.5V and 5.0V.
- 33. If the voltage is above 5.0V, disconnect the passenger airbag module and recheck the voltage.
- 44. If the voltage returns to normal without the module, replace the airbag module. If it stays high, further inspect the wiring harness from the module to the airbag sensor.
Common causes
- Damaged wiring in the airbag circuit
- Faulty airbag module
- Corroded connectors
- Aftermarket accessories interfering with airbag system
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's generally safe to drive, but the airbag system may not deploy in an accident, which increases risk.
Will this problem come back after fixing?
If the fault is properly repaired and the wiring is in good condition, it shouldn't return.
Why is my airbag light on with this code?
The code indicates a fault in the airbag system, which is why the light is on, as a safety measure.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
Start guided diagnostic →