What does code P2685 mean?

Q: What does code P2685 mean?

Actuator Supply Voltage C Circuit Low. P2685 means the engine control module (ECM) has detected that the supply voltage on the actuator circuit it controls is lower than expected, indicating a short to ground or excessive current draw. The ECM monitors the voltage it provides to one or more actuators and sets this code when that voltage falls below a calibrated threshold while the circuit is commanded on.

DTC codes / P26xx · Computer and output circuits / P2685

P2685Actuator Supply Voltage C Circuit Low

P2685 means the engine control module (ECM) has detected that the supply voltage on the actuator circuit it controls is lower than expected, indicating a short to ground or excessive current draw. The ECM monitors the voltage it provides to one or more actuators and sets this code when that voltage falls below a calibrated threshold while the circuit is commanded on.

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.