What does code P1157 mean on Audi vehicles?
A malfunction has been detected in the MAP sensor power supply circuit.
OBD-II Code Audi
P1157 — Audi — Manifold Absolute Pressure Sensor Circuit Power Supply Malfunction
A malfunction has been detected in the MAP sensor power supply circuit.
Common symptoms
- Check engine light illuminated.
Possible causes
- Electrical fault or PCM issue.
Initial recommendation
Check MAP sensor power and ground.
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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