Airbag Crash Sensor Fault
The airbag system has detected a fault in a crash sensor.
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 isn't working right because it thinks a crash sensor is faulty, which can stop the airbags from deploying properly in a crash.
What the computer is actually seeing
The airbag control module sees an implausible signal or no signal from crash sensors, which triggers a fault code.
What a healthy reading looks like
The expected signal from crash sensors is typically a resistance of 2-5 ohms while inactive and a change in voltage during an impact.
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 all wiring and connectors leading to the crash sensors for damage or corrosion.
- 22. Check the vehicle's battery voltage — it should be between 12.4V and 12.8V with the engine off.
- 33. Use a multimeter to measure resistance at the airbag crash sensor; look for 2-5 ohms.
- 44. If the resistance is out of range, replace the crash sensor and retest.
- 55. If resistance is within range, clear the code and perform a functional test of the airbag system.
- 66. If the code does not return, the issue is resolved. If it does, replace the airbag control module.
Common causes
- Wiring issues to the crash sensors
- Faulty crash sensor
- Poor connections or corrosion at connectors
- Airbag control module failure
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
No, the airbag system may not deploy in a crash, which is a serious safety risk.
Will the code come back after clearing it?
If the underlying issue isn't fixed, it will likely return.
Why does this code pair with other airbag codes?
Multiple airbag codes can indicate multiple faults in the system or relate to the same underlying issue, like a wiring problem.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
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