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LAN DIAGNOSIS AND REPAIR WORKFLOW LAN-17 < BASIC INSPECTION > [CAN FUNDAMENTAL] C D E F G H I J K L B A O P N BASIC INSPECTION DIAGNOSIS AND REPAIR WORKFLOW Trouble Diagnosis Flow Chart INFOID:0000000012200499 DESCRIPTION DETAIL OF TROUBLE DIAGNOSIS FLOW CHART 1. INTERVIEW WITH CUSTOMER Interview with the customer is important to detect the root cause of CAN communication system errors and to understand vehicle condition and symptoms for proper trouble diagnosis. Points in interview • What: Parts name, system name • When: Date, Frequency • Where: Road condition, Place • In what condition: Driving condition/environment • Result: Symptom Notes for checking error symptoms: • Check normal units as well as error symptoms. - Example: Circuit between ECM and the combination meter is judged normal if the customer indicates tachometer functions normally. JSMIA0528GB |