P0EC8: The air conditioning power supply relay control gives a higher signal than
The air conditioning power supply relay control gives a higher signal than normal. It is usually the part, its wiring or a connector with poor contact.
| Code | P0EC8 |
|---|---|
| System | Engine and transmission |
| Group | P0Exx, Hybrid and electric |
| Type | Generic: it means the same on every make |
How to read and clear P0EC8 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 P0EC8 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
- P0EC4 The air conditioning refrigerant temperature sensor B gives readings outside
- P0EC5 The air conditioning compressor motor speed sensor gives readings outside the
- P0EC6 The air conditioning power supply relay control has a broken or disconnected
- P0EC7 The air conditioning power supply relay control gives a lower signal than normal
- P0ECA The multiple high voltage battery temperature sensor system sensor gives
- P0ECB The multiple high voltage battery voltage sensor system sensor gives readings
- P0ECC There is a fault in the high voltage battery voltage E
- P0ECE The high voltage battery voltage E is below normal
What does code P0EC8 mean?
The air conditioning power supply relay control gives a higher signal than normal. It is usually the part, its wiring or a connector with poor contact.
How do you clear P0EC8?
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, P0EC8 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.
