Section 493 (Symptom Troubleshooting [Engine Control System BP, BP With TC)): Foreword

WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

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