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DTC codes / U06xx · Network communication / U0695

U0695Lost Communication With Hybrid/EV Battery Pack Coolant Pump B

U0695 is a generic communication fault indicating that one or more control modules have lost the CAN (Controller Area Network) signal from the hybrid or electric vehicle battery pack coolant pump B. The computer has detected that the pump's module is no longer reporting on the network, which can be due to a power, ground, or data bus issue rather than a failed pump.

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.

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