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Home › Kia › 2017 › Optima Plug-In Hybrid EX › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (3 Of 3) (PHEV) › DTC U0456-00: Invalid Data Received From Coolant Temperature Control Module › DTC Information › DTC Description

DTC Description

The PCM determines CAN communication error and sets DTC U045600 if no message received from EEWP (Engine Electric Water Pump).