When is the code detected?When Variable Valve Event & Lift (VVEL) control module cannot transmit/receive can communication signal from Engine Control Module (ECM).
U1024 DescriptionCAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Engine Control Module (ECM) and Variable Valve Event & Lift (VVEL) control module are connected with two communication lines (CAN H line and CAN L line) and transmit/receive data. ECM shares information and links with the VVEL control module during operation.
U1024 Information for specific makes
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