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P2C40
Fan 4 Control Circuit High
Generic · engine
Data confidence
65%
The control module detected that the signal in the Fan 4 Control circuit stayed above the expected operating range.
TuningBot DTC Database · v4.37.15
P2C40 Fan 4 Control Circuit High
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P2C40 means
Related and nearby codes
How to read P2C40
P
Powertrain: engine, transmission and driveline systems.
2
Generic SAE-standard code: same meaning on every make.
C40
Specific fault index within the subsystem.
Frequently asked questions about P2C40
What does P2C40 mean?
Fan 4 Control Circuit High. The control module detected that the signal in the Fan 4 Control circuit stayed above the expected operating range.
Is P2C40 generic or manufacturer-specific?
P2C40 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P2C40 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