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C05BC: The brake booster motor B position sensor power supply has a broken or

The brake booster motor B position sensor power supply has a broken or disconnected wire. It is usually a broken wire, a loose connector or the part itself.

Code C05BC at a glance
CodeC05BC
SystemChassis
GroupC05xx, Chassis
TypeGeneric: it means the same on every make

How to read and clear C05BC 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 C05BC 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.

Similar codes

What does code C05BC mean?

The brake booster motor B position sensor power supply has a broken or disconnected wire. It is usually a broken wire, a loose connector or the part itself.

How do you clear C05BC?

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, C05BC comes back.