P2670: The actuator power supply voltage B is below normal
The actuator power supply voltage B is below normal. It usually comes from the battery, the alternator or a poor connection.
| Code | P2670 |
|---|---|
| System | Engine and transmission |
| Group | P26xx, Auxiliary outputs and cooling |
| Type | Generic: it means the same on every make |
How to read and clear P2670 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 P2670 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
- P266B The position sensor circuit for rocker arm actuator A on bank 2 is outside its
- P266C The position sensor circuit for rocker arm actuator A on bank 2 has a low signal
- P266D The position sensor circuit for rocker arm actuator A on bank 2 has a high
- P266E The position sensor signal for rocker arm actuator A on bank 2 is intermittent
- P2671 The actuator power supply voltage B is above normal
- P2672 The injection pump timing offset is not working properly
- P2673 The injection pump timing calibration needs its learning procedure
- P2674 The injection pump fuel calibration needs its learning procedure
What does code P2670 mean?
The actuator power supply voltage B is below normal. It usually comes from the battery, the alternator or a poor connection.
How do you clear P2670?
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, P2670 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.
