The control module detected an interruption (open circuit) in the Actuator Supply Voltage "C" circuit, so the expected electrical continuity was not present.
TuningBot DTC Database · v4.37.15
P2684 Actuator Supply Voltage "C" Circuit/Open
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P2684 means
Related and nearby codes
How to read P2684
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 P2684
What does P2684 mean?
Actuator Supply Voltage "C" Circuit/Open. The control module detected an interruption (open circuit) in the Actuator Supply Voltage "C" circuit, so the expected electrical continuity was not present.
Is P2684 generic or manufacturer-specific?
P2684 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P2684 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
