Section 3 (Symptom Troubleshooting [Engine Mechanical MZR 2.5]): Foreword

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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 the following flowchart:

If a DTC exists, diagnose the applicable DTC inspection. (See DTC TABLE .)
If no DTC exists and the MIL does not illuminate or flash, diagnose the applicable symptom troubleshooting. (See QUICK DIAGNOSTIC CHART .)

Fig 1: Malfunction Diagnostic Flow Chart

Courtesy of MAZDA MOTORS CORP.

*: Malfunction indicator lamp (MIL), generator warning light, security light