The control module detected a fault associated with the DC/DC Converter Voltage Sensor B Low circuit or function; the stored code identifies the affected component rather than a single failure mode.
TuningBot DTC Database · v4.37.15
P0E38 DC/DC Converter Voltage Sensor B Low
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P0E38 means
Related and nearby codes
How to read P0E38
Powertrain: engine, transmission and driveline systems.
Generic SAE-standard code: same meaning on every make.
Specific fault index within the subsystem.
Frequently asked questions about P0E38
What does P0E38 mean?
DC/DC Converter Voltage Sensor B Low. The control module detected a fault associated with the DC/DC Converter Voltage Sensor B Low circuit or function; the stored code identifies the affected component rather than a single failure mode.
Is P0E38 generic or manufacturer-specific?
P0E38 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P0E38 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
