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P05F9
Stop - Start Status Signal Circuit
Generic · engine
Data confidence
65%
The control module detected improper operation of the Stop - Start Status circuit.
TuningBot DTC Database · v4.37.15
P05F9 Stop - Start Status Signal Circuit
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P05F9 means
Related and nearby codes
How to read P05F9
P
Powertrain: engine, transmission and driveline systems.
0
Generic SAE-standard code: same meaning on every make.
5F9
Specific fault index within the subsystem.
Frequently asked questions about P05F9
What does P05F9 mean?
Stop - Start Status Signal Circuit. The control module detected improper operation of the Stop - Start Status circuit.
Is P05F9 generic or manufacturer-specific?
P05F9 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P05F9 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