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P2B31
Fan 2 Performance/Stuck Off
Generic · engine
Data confidence
65%
The control module determined that the Fan 2 Performance/ did not change state as commanded and appears stuck.
TuningBot DTC Database · v4.37.15
P2B31 Fan 2 Performance/Stuck Off
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P2B31 means
Related and nearby codes
How to read P2B31
P
Powertrain: engine, transmission and driveline systems.
2
Generic SAE-standard code: same meaning on every make.
B31
Specific fault index within the subsystem.
Frequently asked questions about P2B31
What does P2B31 mean?
Fan 2 Performance/Stuck Off. The control module determined that the Fan 2 Performance/ did not change state as commanded and appears stuck.
Is P2B31 generic or manufacturer-specific?
P2B31 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P2B31 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