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P0623
Generator Lamp Control Circuit
Generic · battery
Data confidence
90%
The control module detected improper operation of the Generator Lamp Control circuit.
Possible causes
- Wiring
- poor connection
- bulb
- ECM
TuningBot DTC Database · v4.37.15
P0623 Generator Lamp Control Circuit
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P0623 means
Related and nearby codes
How to read P0623
P
Powertrain: engine, transmission and driveline systems.
0
Generic SAE-standard code: same meaning on every make.
623
Specific fault index within the subsystem.
Frequently asked questions about P0623
What does P0623 mean?
Generator Lamp Control Circuit. The control module detected improper operation of the Generator Lamp Control circuit.
Is P0623 generic or manufacturer-specific?
P0623 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P0623 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. 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