The control module detected an unstable or intermittent signal in the Hybrid Battery Voltage Isolation circuit.
TuningBot DTC Database · v4.37.15
P0AAB Hybrid Battery Voltage Isolation Sensor Circuit Intermittent/Erratic
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P0AAB means
Related and nearby codes
How to read P0AAB
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 P0AAB
What does P0AAB mean?
Hybrid Battery Voltage Isolation Sensor Circuit Intermittent/Erratic. The control module detected an unstable or intermittent signal in the Hybrid Battery Voltage Isolation circuit.
Is P0AAB generic or manufacturer-specific?
P0AAB is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P0AAB 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
