The stored code identifies a fault of the Position signal fault in the gear selection actuator. 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
P159B PSA - Position signal fault in the gear selection actuator
Manufacturer-specific interpretation for PSA. All interpretations of P159B
What P159B means
Related and nearby codes
How to read P159B
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 P159B
What does P159B mean?
Position signal fault in the gear selection actuator. The stored code identifies a fault of the Position signal fault in the gear selection actuator. 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 P159B generic or manufacturer-specific?
P159B 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 P159B 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
