The control module detected an interruption (open circuit) in the Hybrid/EV Battery Pack Coolant Heater A Control circuit, so the expected electrical continuity was not present.
TuningBot DTC Database · v4.37.15
P0E12 Hybrid/EV Battery Pack Coolant Heater A Control Circuit/Open
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P0E12 means
Related and nearby codes
How to read P0E12
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 P0E12
What does P0E12 mean?
Hybrid/EV Battery Pack Coolant Heater A Control Circuit/Open. The control module detected an interruption (open circuit) in the Hybrid/EV Battery Pack Coolant Heater A Control circuit, so the expected electrical continuity was not present.
Is P0E12 generic or manufacturer-specific?
P0E12 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P0E12 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
