Driver's Side Knee Airbag Stage 2 Deployment Fault
This code indicates a problem with the deployment of the driver's side knee airbag.
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 vehicle’s computer thinks the knee airbag isn’t working properly, which could mean it won’t deploy in an accident, raising safety risks.
What the computer is actually seeing
The airbag control module monitors the circuit for the driver's side knee airbag. If it detects that the airbag isn’t reaching the required resistance during a test, it triggers the code and turns on the airbag warning light.
What a healthy reading looks like
Resistance of airbag should be between 2.5 and 3.5 ohms during normal operation. If resistance is outside this range, the fault triggers the code.
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. Check the airbag warning light status. If it’s on, proceed. If not, the issue may be intermittent.
- 22. Inspect the driver's side knee airbag connector for corrosion or looseness. Repair any issues found.
- 33. Verify the resistance of the knee airbag using a multimeter. Expected resistance is between 2.5 and 3.5 ohms. If outside of this range, replace the airbag.
- 44. Check the wiring harness for damage or continuity issues. Repair as necessary. If wires are fine, consider replacing the airbag control module.
- 55. Clear the fault code and perform a test drive. Monitor for the return of the fault code.
Common causes
- Faulty knee airbag
- Bad airbag module
- Wiring issues or damaged connectors
- Corroded terminals
- Open or short circuit in the airbag circuit
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code active?
No, it's not safe. The knee airbag may not deploy in an accident, increasing injury risk.
Will this code come back?
Yes, if the underlying issue isn't resolved, the code will likely return.
Why does this code appear with other airbag codes?
Multiple codes often indicate a systemic issue with the airbag system, such as wiring faults or a faulty airbag module.
Working a real vehicle right now?
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