What does code P1555 mean on Audi vehicles?
The upper limit of charge pressure has been exceeded.
OBD-II Code Audi
P1555 — Audi — Charge Pressure Upper Limit Exceeded
The upper limit of charge pressure has been exceeded.
Common symptoms
- Limp mode activated.
Possible causes
- Faulty N75 valve or boost hoses.
Initial recommendation
Inspect turbocharger 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
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