This code indicates that the powertrain control module has detected a higher-than-expected voltage in the electrical circuit for the engine disconnect clutch actuator. This actuator is typically used in hybrid or start-stop powertrains to separate the engine from the drivetrain for electric-only operation or restarts. A high-voltage condition usually points to an open circuit, poor ground, or a failed actuator solenoid rather than a software issue.
The actuator itself can develop an internal open coil or damaged winding, causing the PCM to see an abnormally high voltage on the control circuit.
A broken wire, bent pin, corroded terminal, or disconnected plug in the actuator circuit will cause the PCM voltage to float high instead of seeing the expected load.
If the actuator's ground path is compromised, the circuit cannot complete and the control side voltage stays high, triggering this code.
A blown fuse or failed relay on the actuator power feed can create an open-circuit condition that the PCM interprets as a high-voltage fault.
A failed driver inside the control module is possible but rare; it should only be considered after all wiring, grounds, and the actuator are fully verified.
Generally yes for short distances, but the hybrid or start-stop system will likely be disabled and fuel economy may suffer. Have it diagnosed promptly to avoid secondary drivability complaints.
Almost never. This code is usually caused by a failed actuator, damaged wiring, or a bad ground. PCM replacement should only be considered after every external component and circuit has been definitively verified as good.
Not directly, but weak system voltage can cause erratic actuator behavior and related codes. Battery health should be checked as part of a thorough diagnosis, especially in hybrid applications.
It is uncommon and typically appears on specific hybrid or start-stop equipped vehicles. When it does set, the actuator and its connector are the most frequent culprits.