The stored code identifies a fault of the Gear selection actuator solenoid fault. Documented for the Automated manual gearbox electric control ECU on Peugeot applications; the same PSA control units are also fitted to Citroën models. PSA documentation does not characterise the failure mode further.
TuningBot DTC Database · v4.37.15
P179B Gear selection actuator solenoid fault
1 manufacturer-specific interpretation across 1 manufacturer in the TuningBot DTC database.
PSA
1 interpretationRelated and nearby codes
How to read P179B
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Frequently asked questions about P179B
What does P179B mean?
Gear selection actuator solenoid fault. The stored code identifies a fault of the Gear selection actuator solenoid fault. Documented for the Automated manual gearbox electric control ECU on Peugeot applications; the same PSA control units are also fitted to Citroën models. PSA documentation does not characterise the failure mode further.
Is P179B generic or manufacturer-specific?
P179B is a manufacturer-specific code. In this database it is documented for: PSA. The same number can mean something different on other brands.
Can TuningBot remove P179B 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
