What does code P1504 mean on Mazda vehicles?
The idle air control solenoid circuit operates intermittently, affecting idle stability.
OBD-II Code Mazda
P1504 — Mazda — Idle Air Control Solenoid Circuit Intermittent
The idle air control solenoid circuit operates intermittently, affecting idle stability.
Common symptoms
- Idle speed fluctuation
- unstable idle
Possible causes
- Idle air control wiring fault
Initial recommendation
Check idle air control solenoid wiring and connector integrity.
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.
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