Passenger Airbag Circuit Open
The airbag system detects an issue with the passenger airbag circuit.
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 computer sees that there's a problem in the wiring or connection for the passenger airbag, which might make it not work properly in an emergency.
What the computer is actually seeing
The airbag control module is monitoring the passenger airbag circuit for continuity. If it sees a voltage reading that indicates an open circuit (usually around 0 volts instead of expected 5 volts), it triggers the fault code.
What a healthy reading looks like
You should see a voltage of about 5 volts on the passenger airbag circuit when the system is ready. If the resistance is greater than 5 ohms, or if there’s a complete break (open circuit), the code is triggered.
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. Start with a visual inspection of the wiring and connectors for the passenger airbag circuit for any signs of damage or corrosion. Decision point: If damaged, repair or replace the wiring; if secure, proceed to step 2.
- 22. Check for proper DTCs in the airbag control module using a scan tool. Confirm B0003 is present. Decision point: If there are other related codes, investigate and resolve those; if only B0003, proceed to step 3.
- 33. Using a multimeter, check the voltage on the airbag connector while the key is in the ON position. You should see about 5 volts. Decision point: If yes, the wiring is intact; recheck the airbag module; if no voltage, check wiring back to the airbag control module.
Common causes
- Damaged wiring or connectors in the airbag circuit
- Faulty passenger airbag module
- Faulty airbag control module
- Disconnection of airbag during repairs or maintenance
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's moderately safe, but the passenger airbag may not deploy in an accident, so it's better to fix it soon.
Will this code come back after clearing it?
If the issue is not fixed, the code will likely return after clearing.
Why does this code sometimes appear with another airbag code?
It often indicates a broader issue in the airbag system wiring or module that affects multiple circuits.
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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