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LAN TROUBLE DIAGNOSIS LAN-21 < SYSTEM DESCRIPTION > [CAN FUNDAMENTAL] C D E F G H I J K L B A O P N TROUBLE DIAGNOSIS Component Description INFOID:0000000010272908 Condition of Error Detection INFOID:0000000010272909 DTC (e.g. U1000 and U1001) of CAN communication is indicated on SELF-DIAG RESULTS on CONSULT if a CAN COMMUNICATION SYSTEM ERROR • CAN communication line open (CAN-H, CAN-L, or both) WHEN DTC OF CAN COMMUNICATION IS INDICATED EVEN THOUGH CAN COMMUNICATION • Removal/installation of parts: Error may be detected when removing and installing CAN communication unit and related parts while turning the ignition switch ON. (A DTC except for CAN communication may be • Fuse blown out (removed): CAN communication of the unit may cease. switch ON (Depending on the control unit which carries out CAN communication). • Error may be detected if the power supply circuit of the control unit, which carries out CAN communication, malfunctions (Depending on the control unit which carries out CAN communication). • Error may be detected if reprogramming is not completed normally. JSMIA0527GB Component Description Main line CAN communication line between splices Branch line CAN communication line between splice and a control unit Splice A point connecting a branch line with a main line Termination circuit Circuit connected across the CAN communication system. (Resistor) |