Diagnostic method

Fig 1: Diagnostic Troubleshooting Flowchart

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

*1: For how to diagnose CAN bus lines, refer to EXPLANATION ABOUT THE SCAN TOOL (M.U.T.-III) CAN BUS DIAGNOSTICS .
*2: For the CAN bus diagnosis chart, refer to CAN BUS DIAGNOSTICS TABLE .
*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 VERIFY THE INTERMITTENT MALFUNCTION IS ELIMINATED .
*5: For how to cope with intermittent malfunctions, refer to CONNECTOR ENGAGEMENT INSPECTION .
*6: For coding data, refer to CODING LIST .