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DLN-216 < DTC/CIRCUIT DIAGNOSIS > [REAR FINAL DRIVE: M226 (ELD) ] U1000 CAN COMM CIRCUIT DTC/CIRCUIT DIAGNOSIS U1000 CAN COMM CIRCUIT Description INFOID:0000000009886105 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 error detection ability. Many elec- tronic 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 connected with 2 communication lines (CAN-H, CAN-L) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only. CAN Communication Signal Chart. Refer to LAN-46, "CAN Communication Signal Chart" DTC Logic INFOID:0000000009886106 DTC DETECTION LOGIC Diagnosis Procedure INFOID:0000000009886107 1. PERFORM SELF DIAGNOSTIC 1. Turn ignition switch ON and wait for 2 seconds or more. 2. Check “Self Diagnostic Result” of differential lock control unit. YES >> Refer to DLN-214, "CONSULT Function (DIFF LOCK)" . NO >> Refer to GI-42, "Intermittent Incident" . DTC Display contents of CON- SULT Diagnostic item is detected when ... Probable malfunction location U1000 CAN COMM CIRCUIT When differential lock control unit is not trans- CAN communication system |