P2BD0: The battery charge system negative contactor B control gives a lower signal
The battery charge system negative contactor B control gives a lower signal than normal. It is usually the part, its wiring or a connector with poor contact.
| Code | P2BD0 |
|---|---|
| System | Engine and transmission |
| Group | P2Bxx, Engine and emissions |
| Type | Generic: it means the same on every make |
How to read and clear P2BD0 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 P2BD0 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
- P2BCC The negative battery charge system contactor B has got stuck
- P2BCD The negative battery charge system contactor B has got stuck
- P2BCE The battery charge system negative contactor B control has a broken or
- P2BCF The battery charge system negative contactor B control gives readings outside
- P2BD1 The battery charge system negative contactor B control gives a higher signal
- P2BD2 There is a leak in exhaust aftertreatment system A
- P2BD3 There is a leak in exhaust aftertreatment system B
- P2BD4 The engine electronics coolant pump C control has a broken or disconnected wire
- P2BAC NOx exceedance: EGR deactivated
What does code P2BD0 mean?
The battery charge system negative contactor B control gives a lower signal than normal. It is usually the part, its wiring or a connector with poor contact.
How do you clear P2BD0?
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, P2BD0 comes back.
Read it on your car
Final OBD reads and clears engine faults through standard OBD for free, each one explained in plain English. With PRO it also reads the faults of every control unit, each make’s own codes included, and clears them in all of them.
