The control module detected an unstable or intermittent signal in the Starter/Generator Phase Y Current circuit.
TuningBot DTC Database · v4.37.15
P2D99 Starter/Generator Phase Y Current Circuit Intermittent/Erratic
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P2D99 means
Related and nearby codes
How to read P2D99
Powertrain: engine, transmission and driveline systems.
Generic SAE-standard code: same meaning on every make.
Specific fault index within the subsystem.
Frequently asked questions about P2D99
What does P2D99 mean?
Starter/Generator Phase Y Current Circuit Intermittent/Erratic. The control module detected an unstable or intermittent signal in the Starter/Generator Phase Y Current circuit.
Is P2D99 generic or manufacturer-specific?
P2D99 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P2D99 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
