ItalianoIT
DeutschDE
EspañolES
PortuguêsPT
FrançaisFR
РусскийRU
P0620
Generator Control Circuit Malfunction
Generic · battery
Data confidence
90%
The control module detected improper operation of the Generator Control circuit.
Possible causes
- Wiring
- alternator
- battery
- ECM
TuningBot DTC Database · v4.37.14
P0620 Generator Control Circuit Malfunction
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P0620 means
Related and nearby codes
How to read P0620
P
Powertrain: engine, transmission and driveline systems.
0
Generic SAE-standard code: same meaning on every make.
620
Specific fault index within the subsystem.
Frequently asked questions about P0620
What does P0620 mean?
Generator Control Circuit Malfunction. The control module detected improper operation of the Generator Control circuit.
Is P0620 generic or manufacturer-specific?
P0620 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P0620 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
Other file services
Understand the system behind this code: Diagnostic Strategy and DTC Logic