The control module detected that the signal in the Shift Solenoid "G" Control circuit stayed below the expected operating range.
TuningBot DTC Database · v4.37.15
P099B Shift Solenoid "G" Control Circuit Low
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P099B means
Related and nearby codes
How to read P099B
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 P099B
What does P099B mean?
Shift Solenoid "G" Control Circuit Low. The control module detected that the signal in the Shift Solenoid "G" Control circuit stayed below the expected operating range.
Is P099B generic or manufacturer-specific?
P099B is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P099B 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
