Diagnostic method

Fig 1: Diagnostic Workflow Chart

^*1 : For how to diagnose CAN bus lines, refer to PRECAUTIONS ON HOW TO REPAIR THE TERMINATOR RESISTOR .
^*2 : For the CAN bus diagnosis chart, refer to DIAGNOSIS .
^*3 : When scan tool MB991958 detects a diagnostic trouble code, its display informs users whether a mechanical problem currently exists or whether it existed before. The message for the former state identifies it as an "Active" and the message for the latter identifies it as a "Stored".
^*4 : For how to treat past trouble, refer to HOW TO TREAT PAST TROUBLE .
^*5 : For how to cope with intermittent malfunctions, refer to HOW TO COPE WITH INTERMITTENT MALFUNCTIONS .
^*6 : For coding data, refer to CODING LIST .