Symptom Troubleshooting [Engine Control System BP, BP With TC): Foreword

• When the customer reports a vehicle malfunction, check the malfunction indicator light (MIL) indication and diagnostic trouble code (DTC), then diagnose the malfunction according to 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 SYMPTOM DIAGNOSTIC INDEX .)
  Fig 1: Vehicle Malfunction Flow Chart

  Courtesy of MAZDA MOTORS CORP.

*: Malfunction Indicator Light (MIL), Generator Warning Light, Security Light