P2B68: The coolant pump D control gives a higher signal than normal
The coolant pump D control gives a higher signal than normal. It is usually the part, its wiring or a connector with poor contact.
| Code | P2B68 |
|---|---|
| System | Engine and transmission |
| Group | P2Bxx, Engine and emissions |
| Type | Generic: it means the same on every make |
How to read and clear P2B68 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 P2B68 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
- P2B62 The coolant pump B power supply voltage has an electrical fault
- P2B64 The coolant pump B control unit is getting too hot
- P2B66 The coolant pump D control has a broken or disconnected wire
- P2B67 The coolant pump D control gives a lower signal than normal
- P2B69 The coolant pump D power supply voltage has an electrical fault
- P2B6B The coolant pump D control unit is getting too hot
- P2B6D The engine coolant flow control valve position sensor fails now and then
- P2B6E The turbocharger A temperature sensor has an electrical fault
- P2BAC NOx exceedance: EGR deactivated
What does code P2B68 mean?
The coolant pump D control gives a higher signal than normal. It is usually the part, its wiring or a connector with poor contact.
How do you clear P2B68?
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, P2B68 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.
