Airbag System Internal Resistance Fault
There's a problem with the airbag control module's internal resistance.
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 computer thinks something's wrong with its internal wiring or circuitry. It's measuring resistance and something isn’t right, which could prevent the airbags from deploying properly in a crash.
What the computer is actually seeing
The airbag control module continuously checks its internal resistance values. It expects these to be within a certain range—typically around 1-5 ohms, depending on the design. If it detects a resistance outside this range, a fault code is triggered.
What a healthy reading looks like
Expected internal resistance should be between 1 to 5 ohms. If reading is outside this range, it indicates a fault.
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 airbag control module connectors for corrosion or damage. If damaged, repair or replace the connector. Decision: Is the connector okay?
- 22. Check the wiring continuity between the airbag control module and connectors. Use a multimeter to measure resistance; it should be less than 5 ohms. Decision: Is the wiring intact?
- 33. If the wiring is good, check the airbag control module's internal resistance using a simulator if available. If it fails, replace the module. Decision: Does the module pass the test?
- 44. If all components check out, inspect related components like seat occupancy sensors that might have a fault causing this code. Decision: Any faults found?
Common causes
- Corroded connectors
- Faulty airbag control module
- Wiring issues in the airbag circuit
- Faulty seat occupancy sensor
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
No, it can prevent airbags from deploying in an accident, so repair it as soon as possible.
Will this code come back after clearing?
Yes, if the underlying issue isn't fixed, the code will likely return.
Why is this code showing up with no visible damage?
Electrical faults can be intermittent. Corrosion or internal module issues might not show physical damage.
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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