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TROUBLE DIAGNOSES WORK FLOW LAN-17 [CAN FUNDAMENTAL] C D E F G H I J L M A B LAN Trouble Diagnosis Procedure NKS004HJ INTERVIEW WITH CUSTOMER Interview with the customer is important to detect the root cause of CAN communication system errors and to Points in interview ● What: Parts name, system name ● When: Date, Frequency ● Where: Road condition, Place ● In what condition: Driving condition/environment ● Result: Symptom NOTE: ● Check normal units as well as error symptoms. – Example: Circuit between ECM and the combination meter is judged normal if the customer indicates ● When a CAN communication system error is present, multiple control units may malfunction or go into fail- ● Indication of the combination meter is important to detect the root cause because it is the most obvious to SKIB8717E |