The control module judged the Shift Solenoid "G" Control signal implausible: it stayed inside electrical limits but did not match the value expected for the current operating conditions.
TuningBot DTC Database · v4.37.15
P099A Shift Solenoid "G" Control Circuit Range/Performance
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P099A means
Related and nearby codes
How to read P099A
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 P099A
What does P099A mean?
Shift Solenoid "G" Control Circuit Range/Performance. The control module judged the Shift Solenoid "G" Control signal implausible: it stayed inside electrical limits but did not match the value expected for the current operating conditions.
Is P099A generic or manufacturer-specific?
P099A is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P099A 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
