The control module detected that the measured gear ratio did not match the commanded gear (Transfer Case Gear Low).
TuningBot DTC Database · v4.37.15
P279B Transfer Case Gear Low Incorrect Ratio
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P279B means
Related and nearby codes
How to read P279B
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 P279B
What does P279B mean?
Transfer Case Gear Low Incorrect Ratio. The control module detected that the measured gear ratio did not match the commanded gear (Transfer Case Gear Low).
Is P279B generic or manufacturer-specific?
P279B is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P279B 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
