The control module detected a response consistent with a blocked or restricted Radiator Fan 2 Movement. This is the manufacturer-specific definition used by Audi.
TuningBot DTC Database · v4.37.14
P1951 Diagnostic Trouble Code (2 interpretations)
2 manufacturer-specific interpretations across 1 manufacturer in the TuningBot DTC database.
VAG
2 interpretationsThe control module detected a response consistent with a blocked or restricted Radiator Fan 2 (V177): Movement. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 18359. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).
Possible causes
Coolant Fan 2 (V177) restricted/jammed
Recommended checks
Check Coolant Fan 2 (V177) for Restriction/Blockade
Related and nearby codes
How to read P1951
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 P1951
What does P1951 mean?
Diagnostic Trouble Code (2 interpretations). The control module detected a response consistent with a blocked or restricted Radiator Fan 2 Movement. This is the manufacturer-specific definition used by Audi.
Is P1951 generic or manufacturer-specific?
P1951 is a manufacturer-specific code. In this database it is documented for: VAG. The same number can mean something different on other brands.
Can TuningBot remove P1951 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. 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
