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B309D: The right side crash sensor 4 is not working properly

The right side crash sensor 4 is not working properly. It may be the sensor itself, its connector or the wiring.

Code B309D at a glance
CodeB309D
SystemBody
GroupB30xx, Body
TypeGeneric: it means the same on every make

How to read and clear B309D with Final OBD

Plug an OBD2 scanner in under the steering wheel, switch the ignition on and open Final OBD. Under Faults you’ll see B309D with its description and whether it’s confirmed, pending or permanent.

If the engine stores it over standard OBD, with FREE you read this code with its explanation for nothing and clear it. With PRO you also read the faults of every control unit and clear them in all of them.

Clearing the code only turns the light off: if the cause is still there, it comes back. Clear it once it’s fixed, and not right before an inspection. It’s all in how to read and clear fault codes and in inspections and OBD.

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What does code B309D mean?

The right side crash sensor 4 is not working properly. It may be the sensor itself, its connector or the wiring.

How do you clear B309D?

With an OBD2 scanner and an app like Final OBD, which clears it for free if it’s stored by the engine control unit. But clearing it only turns the light off: if the cause isn’t fixed, B309D comes back.