What does code P2686 mean?

Q: What does code P2686 mean?

Actuator Supply Voltage C Circuit High. P2686 indicates that the powertrain control module (PCM) has detected an abnormally high voltage on the supply circuit for an actuator, which is a generic output driver used to control a solenoid, relay, or motor. The PCM monitors the voltage on the actuator's power feed and sets this code when the signal exceeds the expected range, typically because the circuit is shorted to voltage or the actuator's internal resistance has changed.

DTC codes / P26xx · Computer and output circuits / P2686

P2686Actuator Supply Voltage C Circuit High

P2686 indicates that the powertrain control module (PCM) has detected an abnormally high voltage on the supply circuit for an actuator, which is a generic output driver used to control a solenoid, relay, or motor. The PCM monitors the voltage on the actuator's power feed and sets this code when the signal exceeds the expected range, typically because the circuit is shorted to voltage or the actuator's internal resistance has changed.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaComputer and output circuits

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.