Airbag Deployment Control Module Fault
This code indicates a fault in the airbag deployment system.
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 is having trouble communicating, which can prevent the airbags from deploying properly in a crash.
What the computer is actually seeing
The airbag control module monitors several sensors and internal components to determine if the airbag system is functioning properly. If it detects a failure within the communication or functionality of these components, it will trigger this code.
What a healthy reading looks like
The airbag control module usually should show an operational voltage between 10-14 volts when the vehicle is on. Additionally, the internal resistance of the module should be within manufacturer specifications, typically under 5 ohms when conducting a diagnostic check.
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 the airbag wiring harness and connectors for damage or corrosion. Fix any issues found. Decision Point: Did you find any wiring/connectors issues? If yes, repair and retest. If no, proceed to step 2.
- 22. Check the battery voltage; it should be between 10-14 volts with the vehicle running. Decision Point: Is the voltage within range? If no, address battery or charging system issues. If yes, proceed to step 3.
- 33. Scan the airbag control module for additional trouble codes that might point to specific sensor failures. Decision Point: Are there other codes? If yes, troubleshoot those codes first. If no, proceed to step 4.
- 44. Test the airbag control module for fault by bench testing or replacing it with a known good module. Decision Point: Does the code clear with a known good module? If yes, replace the module. If no, further diagnose the vehicle's internal wiring and remaining airbags.
Common causes
- Bad connection in the airbag wiring harness
- Faulty airbag control module
- Damaged sensors in the airbag system
- Corroded connectors
- Internal 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 the event of a crash, creating a serious safety risk.
Will this code come back after clearing?
If the underlying issue isn't resolved, the code will likely return.
Why does this code appear with other codes?
Airbag systems often have multiple interconnected components, and a failure in one can affect others.
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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