OBD-II Code Mazda

P1506 — Mazda — Idle Air Control System Overspeed Detected

The ECU detects idle speed exceeding the target value.

Brand Mazda
System Engine
Severity Low
Safe to drive? Yes, with caution
Advanced scanner Not necessarily

What does code P1506 mean on Mazda vehicles?

The ECU detects idle speed exceeding the target value.

Common symptoms

  • High idle speed

Possible causes

  • Vacuum leak
  • idle control malfunction

Initial recommendation

Check for vacuum leaks and inspect idle control system.

Safety notice

This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.

Analyze this code with MecaOBD

Use the app to combine Mazda code P1506 with your vehicle's actual symptoms for more complete diagnostic guidance.

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