On-Board Diagnostic - Engine Control System (Introduction): Foreword
- When the customer reports a vehicle malfunction, check the malfunction indicator lamp (MIL) indication and diagnostic trouble code (DTC), then diagnose the malfunction according to following flowchart.
- If the DTC exists, diagnose the applicable DTC inspection. (See DTC TABLE .)
- If the DTC does not exist and the MIL does not illuminate, diagnose the applicable symptom troubleshooting.
Courtesy of MAZDA MOTORS CORP.
*: MIL, Generator Warning Light, Security Light