P0612: The fuel injector control unit relay control has an electrical fault
The fuel injector control unit relay control has an electrical fault. It may be the part itself, its connector or the wiring.
| Code | P0612 |
|---|---|
| System | Engine and transmission |
| Group | P06xx, Control unit and auxiliary outputs |
| Type | Generic: it means the same on every make |
How to read and clear P0612 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 P0612 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
- P060D The internal control unit accelerator pedal position gives readings outside the
- P060E The internal control unit throttle position gives readings outside the normal
- P060F The internal control unit coolant temperature gives readings outside the normal
- P0611 The fuel injector control unit gives readings outside the normal range
- P0613 The gearbox control unit processor is not working properly
- P0614 The engine control unit and the gearbox control unit are incompatible
- P0615 Starter relay: circuit fault
- P0616 Starter relay: circuit low
- P0600 Serial communication link fault
- P0601 Internal control module memory checksum error
- P0602 Control module programming error
- P0603 Internal control module keep alive memory (KAM) error
What does code P0612 mean?
The fuel injector control unit relay control has an electrical fault. It may be the part itself, its connector or the wiring.
How do you clear P0612?
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, P0612 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.
