P0607: Control module performance
The engine ECU finds that it is not working as it should in its internal self-checks. It may be the power supply, software or the unit.
| Code | P0607 |
|---|---|
| System | Engine and transmission |
| Group | P06xx, Control unit and auxiliary outputs |
| Type | Generic: it means the same on every make |
| Can you keep driving? | With care |
What P0607 means
The ECU runs constant self-tests to make sure its calculations are correct. This code means one of those internal tests has failed. It can be caused by an unstable supply or buggy software, as well as a physical fault inside the unit.
Most common causes
- Poor battery or unstable voltage
- Engine or ECU earths making poor contact
- Moisture or corrosion in the ECU plug
- Outdated or corrupted software
- Internal ECU fault
Symptoms
- Engine warning light on
- Limp mode or loss of power
- Stalling or hard starting
- Other sensor codes with no obvious reason
Can you drive with P0607?
With care The engine may lose power or stall. You can drive with care, but get it to a garage soon.
Open the bonnetthe in-depth explanation
How to check it
Check the battery voltage and look for other supply-related codes. If several codes appear together, give them all to the garage, as they help show whether the ECU or its surroundings are at fault.
How to read and clear P0607 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 P0607 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
- P0603 Internal control module keep alive memory (KAM) error
- P0604 Internal control module random access memory (RAM) error
- P0605 Internal control module read only memory (ROM) error
- P0606 ECM/PCM processor fault
- P0608 The control unit vehicle speed output A has a fault
- P0609 There is a fault in control unit output B for the vehicle speed signal
- P060A The internal monitoring of the engine control unit has seen a processor fault
- P060B Analog to digital signal processing in the engine control unit is performing
- P0600 Serial communication link fault
- P0601 Internal control module memory checksum error
- P0602 Control module programming error
- P0615 Starter relay: circuit fault
What does code P0607 mean?
The ECU runs constant self-tests to make sure its calculations are correct. This code means one of those internal tests has failed. It can be caused by an unstable supply or buggy software, as well as a physical fault inside the unit.
Can you drive with P0607?
The engine may lose power or stall. You can drive with care, but get it to a garage soon.
How do you clear P0607?
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, P0607 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.
