P05E8: The engine oil bypass valve control has a broken or disconnected wire
The engine oil bypass valve control has a broken or disconnected wire. It is usually a broken wire, a loose connector or the part itself.
| Code | P05E8 |
|---|---|
| System | Engine and transmission |
| Group | P05xx, Speed, idle and auxiliary inputs |
| Type | Generic: it means the same on every make |
How to read and clear P05E8 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 P05E8 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
- P05E4 The parking brake sensor gives a lower signal than normal
- P05E5 The parking brake sensor gives a higher signal than normal
- P05E6 The parking brake sensor gives readings outside the normal range
- P05E7 The parking brake sensor fails now and then
- P05E9 The engine oil bypass valve control gives a lower signal than normal
- P05EA The engine oil bypass valve control gives a higher signal than normal
- P05EB The cold start SCR NOx catalytic converter intake temperature is below normal
- P05EC The cold start injection timing gives readings outside the normal range
- P0500 Vehicle speed sensor malfunction
- P0501 Vehicle speed sensor range/performance
- P0502 Vehicle speed sensor circuit low input
- P0503 Vehicle speed sensor intermittent, erratic or high
What does code P05E8 mean?
The engine oil bypass valve control has a broken or disconnected wire. It is usually a broken wire, a loose connector or the part itself.
How do you clear P05E8?
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, P05E8 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.
