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TuningBot DTC Database · v4.37.14

P0C21 Auxiliary Transmission Fluid Pump Phase U - V - W Circuit Low

Generic (OBD-II) interpretation in the TuningBot DTC database.

P · PowertrainTransmissionOBD2

What P0C21 means

P0C21
Auxiliary Transmission Fluid Pump Phase U - V - W Circuit Low Generic · transmission Data confidence 78%

The control module detected that the signal in the Auxiliary Transmission Fluid Pump Phase U - V - W circuit stayed below the expected operating range.

Related and nearby codes

How to read P0C21

P

Powertrain: engine, transmission and driveline systems.

0

Generic SAE-standard code: same meaning on every make.

C21

Specific fault index within the subsystem.

Frequently asked questions about P0C21

What does P0C21 mean?

Auxiliary Transmission Fluid Pump Phase U - V - W Circuit Low. The control module detected that the signal in the Auxiliary Transmission Fluid Pump Phase U - V - W circuit stayed below the expected operating range.

Is P0C21 generic or manufacturer-specific?

P0C21 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P0C21 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

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