The control module detected that the Gear Shift Control Module B Supply voltage stayed below the expected range.
TuningBot DTC Database · v4.37.15
P2DA1 Gear Shift Control Module B Supply Voltage Low
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P2DA1 means
Related and nearby codes
How to read P2DA1
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 P2DA1
What does P2DA1 mean?
Gear Shift Control Module B Supply Voltage Low. The control module detected that the Gear Shift Control Module B Supply voltage stayed below the expected range.
Is P2DA1 generic or manufacturer-specific?
P2DA1 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P2DA1 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
