P0650: Malfunction indicator lamp (MIL) control: circuit fault
The ECU detects a fault in the circuit that lights up the engine warning light. Usually the bulb or LED, the wiring or the instrument cluster.
| Code | P0650 |
|---|---|
| System | Engine and transmission |
| Group | P06xx, Control unit and auxiliary outputs |
| Type | Generic: it means the same on every make |
| Can you keep driving? | Yes, no rush |
What P0650 means
The ECU is what switches on the engine warning light when it finds a fault. This code means that light’s circuit is not working properly, so it may not warn you about other faults. At an inspection, a warning light that does not come on with the ignition is usually a fail.
Most common causes
- Blown warning light bulb on older cars
- Instrument cluster plug loose or corroded
- Wire between ECU and cluster broken or chafed
- Instrument cluster fault
- Internal ECU fault
Symptoms
- Engine warning light does not come on with the ignition
- Warning light stays on all the time
- Code stored with no light showing
Can you drive with P0650?
Yes, no rush The car drives the same, but it will not warn you about other faults. Get it fixed soon, and before any inspection.
Open the bonnetthe in-depth explanation
How to check it
Switch the ignition on without starting: the engine warning light should come on for a few seconds. If it does not, use the scan tool to check for other stored codes, as the light is not showing them to you.
How to read and clear P0650 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 P0650 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
- P064C The glow plug control unit is not working properly
- P064D The internal control unit lambda sensor processor (bank 1) gives readings
- P064E The internal control unit lambda sensor processor (bank 2) gives readings
- P064F An unauthorized software calibration that is not original equipment has been
- P0651 Sensor reference voltage B: circuit open or faulty
- P0652 Sensor reference voltage B: circuit low
- P0653 Sensor reference voltage B: circuit high
- P0654 The engine speed output has an electrical fault
- 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 P0650 mean?
The ECU is what switches on the engine warning light when it finds a fault. This code means that light’s circuit is not working properly, so it may not warn you about other faults. At an inspection, a warning light that does not come on with the ignition is usually a fail.
Can you drive with P0650?
The car drives the same, but it will not warn you about other faults. Get it fixed soon, and before any inspection.
How do you clear P0650?
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, P0650 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.
