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TuningBot DTC Database · v4.37.15

P2CD4 A/C Refrigerant Pressure Sensor A/B Correlation

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

P · PowertrainClimate_controlOBD2

What P2CD4 means

P2CD4
A/C Refrigerant Pressure Sensor A/B Correlation Generic · climate_control Data confidence 65%

The control module detected a fault associated with the A/C Refrigerant Pressure Sensor A/B Correlation circuit or function; the stored code identifies the affected component rather than a single failure mode.

Related and nearby codes

How to read P2CD4

P

Powertrain: engine, transmission and driveline systems.

2

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

CD4

Specific fault index within the subsystem.

Frequently asked questions about P2CD4

What does P2CD4 mean?

A/C Refrigerant Pressure Sensor A/B Correlation. The control module detected a fault associated with the A/C Refrigerant Pressure Sensor A/B Correlation circuit or function; the stored code identifies the affected component rather than a single failure mode.

Is P2CD4 generic or manufacturer-specific?

P2CD4 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P2CD4 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

ECU tuningDyno-tested results by model and engine See the results →

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