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DTC codes / U06xx · Network communication / U064B

U064BLost Communication With Hybrid/EV Battery Pack Current Sensor B

U064B is a generic network communication code indicating that a control module on the vehicle's controller area network (CAN) bus has lost contact with the hybrid or electric vehicle battery pack current sensor B. The module that sets this code is not receiving the periodic data message that the current sensor normally broadcasts, so it cannot monitor the battery's current flow for that channel.

SystemNetwork
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyProfessional
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.

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