What does code P26ED mean?

Q: What does code P26ED mean?

Engine Sound Control B Circuit Low. P26ED means the engine control module (ECM) has detected an abnormally low voltage or current on the control circuit for the engine sound control actuator, which is the device that actively cancels or enhances engine noise in the cabin. The ECM commands a duty cycle or current to the actuator and monitors the circuit for expected electrical feedback; when the feedback falls below the calibrated threshold, it sets this low-circuit code.

DTC codes / P26xx · Computer and output circuits / P26ED

P26EDEngine Sound Control B Circuit Low

P26ED means the engine control module (ECM) has detected an abnormally low voltage or current on the control circuit for the engine sound control actuator, which is the device that actively cancels or enhances engine noise in the cabin. The ECM commands a duty cycle or current to the actuator and monitors the circuit for expected electrical feedback; when the feedback falls below the calibrated threshold, it sets this low-circuit code.

SystemPowertrain

Code typeGeneric (all makes)

SeverityLow

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.