What does code P1504 mean on Audi vehicles?
A leak has been detected in the intake air system bypass.
OBD-II Code Audi
P1504 — Audi — Intake Air System Bypass Leak Detected
A leak has been detected in the intake air system bypass.
Common symptoms
- Power loss.
Possible causes
- Damaged intake hoses.
Initial recommendation
Inspect intake 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
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