The control module detected a fault associated with the Hybrid/EV Battery Voltage System Isolation Warning circuit or function; the stored code identifies the affected component rather than a single failure mode.
TuningBot DTC Database · v4.37.14
P2C88 Hybrid/EV Battery Voltage System Isolation Warning
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P2C88 means
Related and nearby codes
How to read P2C88
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 P2C88
What does P2C88 mean?
Hybrid/EV Battery Voltage System Isolation Warning. The control module detected a fault associated with the Hybrid/EV Battery Voltage System Isolation Warning circuit or function; the stored code identifies the affected component rather than a single failure mode.
Is P2C88 generic or manufacturer-specific?
P2C88 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P2C88 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. 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
