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LAN-18 < SYSTEM DESCRIPTION > [CAN FUNDAMENTAL] TROUBLE DIAGNOSIS With PAST MONITOR ITEM (ON-BOARD DIAGNOSIS) NOTE: Example: Vehicle Display Transmission diagnosis OK Normal at present UNKWN Unable to transmit signals for 2 seconds or more. Diagnosis not performed Control unit name (Reception diagnosis) OK Normal at present UNKWN Unable to receive signals for 2 seconds or more. Diagnosis not performed No control unit for receiving signals. (No applicable optional parts) Item PRSNT Description Item PRSNT PAST Description Transmission diagnosis OK OK Normal at present and in the past 1 – 39 Normal at present, but unable to transmit signals for 2 seconds or more UNKWN 0 Unable to transmit signals for 2 seconds or more at present. Control unit name (Reception diagnosis) OK OK Normal at present and in the past 1 – 39 Normal at present, but unable to receive signals for 2 seconds or more UNKWN 0 Unable to receive signals for 2 seconds or more at present. – – Diagnosis not performed. No control unit for receiving signals. (No applicable optional parts) Item Result indi- cated Error counter Description CAN_COMM (Initial diagnosis) OK 0 Normal at present NG 1 – 50 Control unit error CAN_CIRC_1 (Transmission diagnosis) OK 0 Normal at present UNKWN 1 – 50 Unable to transmit for 2 seconds or more at present. CAN_CIRC_2 – 9 (Reception diagnosis of each unit) OK 0 Normal at present UNKWN 1 – 50 Unable to transmit for 2 seconds or more at present. Diagnosis not performed. No control unit for receiving signals. (No applicable optional |