What does code U0605 mean?

Q: What does code U0605 mean?

Lost Communication With A/C Refrigerant Sensor A. U0605 is a generic communication fault indicating that a control module on the vehicle's controller area network (CAN) bus has lost contact with the air conditioning refrigerant sensor, typically the sensor that monitors refrigerant pressure or temperature. The module that sets this code has stopped receiving the periodic data message it expects from that sensor, so it flags the sensor as missing rather than reporting a specific pressure or temperature value.

DTC codes / U06xx · Network communication / U0605

U0605Lost Communication With A/C Refrigerant Sensor A

U0605 is a generic communication fault indicating that a control module on the vehicle's controller area network (CAN) bus has lost contact with the air conditioning refrigerant sensor, typically the sensor that monitors refrigerant pressure or temperature. The module that sets this code has stopped receiving the periodic data message it expects from that sensor, so it flags the sensor as missing rather than reporting a specific pressure or temperature value.

SystemNetwork

Code typeGeneric (all makes)

SeverityLow

Fix difficultyIntermediate

AreaNetwork communication

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