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TM-44 < DTC/CIRCUIT DIAGNOSIS > [CVT: RE0F09B] U1010 CONTROL UNIT (CAN) U1010 CONTROL UNIT (CAN) Description INFOID:0000000010113460 CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul- tiplex communication line with high data communication speed and excellent malfunction detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are con- nected with 2 communication lines (CAN-H and CAN-L) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only. DTC Logic INFOID:0000000010113461 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE NOTE: If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch OFF. Then wait at least 10 seconds before performing the next test. 1. CHECK DTC DETECTION With CONSULT 1. Turn ignition switch ON. 2. Start engine and wait for at least 6 seconds. 3. Perform “SELF-DIAG RESULTS” mode for “TRANSMISSION”. With GST Follow the procedure “With CONSULT”. YES >> Go to NO >> Check intermittent incident. Refer to GI-41, "Intermittent Incident" . Diagnosis Procedure INFOID:0000000010113462 1. CHECK INTERMITTENT INCIDENT GI-41, "Intermittent Incident" Is the inspection result normal? YES NO >> Repair or replace damaged parts. DTC Trouble diagnosis name DTC is detected if... Possible cause U1010 TCM Communication Mal- When detecting error during the initial diag- TCM |