What does code U069A mean?

DTC codes / U06xx · Network communication / U069A

U069ALost Communication With Exhaust Gas Temperature Sensor Bank 1 Sensor 3

U069A is a network communication code indicating that a control module on the vehicle's Controller Area Network (CAN) bus has lost contact with the exhaust gas temperature sensor for bank 1 sensor 3. The module monitoring this sensor, typically the engine control module or a dedicated aftertreatment controller, has stopped receiving valid temperature data over the communication line for a calibrated period, so it sets this code and may substitute a default value.

SystemNetwork

Code typeGeneric (all makes)

SeverityMedium

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.