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TuningBot DTC Database · v4.37.15

P0652 Sensor Reference Voltage B Circuit Low

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

P · PowertrainEngineOBD2

What P0652 means

P0652
Sensor Reference Voltage B Circuit Low Generic · engine Data confidence 90%

The control module detected that the signal in the Sensor Reference Voltage B circuit stayed below the expected operating range.

Possible causes

Wiring short to earth

Related and nearby codes

How to read P0652

P

Powertrain: engine, transmission and driveline systems.

0

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

652

Specific fault index within the subsystem.

Frequently asked questions about P0652

What does P0652 mean?

Sensor Reference Voltage B Circuit Low. The control module detected that the signal in the Sensor Reference Voltage B circuit stayed below the expected operating range.

Is P0652 generic or manufacturer-specific?

P0652 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P0652 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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