Passenger Airbag On/Off Switch Fault
Indicates a fault with the passenger airbag switch status.
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 can't tell if the passenger airbag should be on or off, which means it might not work properly in a crash.
What the computer is actually seeing
The airbag system expects a series of voltage signals from the passenger airbag switch, typically a low 0.5V for 'off' and a higher voltage (like 4.5V) for 'on'.
What a healthy reading looks like
Passenger airbag switch should read 0.5V for 'off', 4.5V for 'on'.
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.
- 1Check the passenger airbag switch for physical damage or wear.
- 2Inspect all related wiring and connectors for corrosion or loose connections.
- 3Using a multimeter, test the passenger airbag switch voltage: it should be 0.5V (off) or around 4.5V (on). If readings are outside this range, replace the switch.
- 4Clear codes and retest the system; if the code returns, suspect faulty wiring or the airbag control module.
Common causes
- Faulty airbag switch
- Wiring issues in the airbag circuit
- Faulty airbag control module
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code present?
No, the airbags may not deploy properly in a crash, so fix this issue as soon as possible.
Will the code come back after clearing it?
If the underlying issue isn't resolved, the code will likely return.
Why does this code pair with others like B000B?
They often relate to similar issues in the airbag system, such as the driver's side switch or other related components.
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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