What does code P1178 mean on Audi vehicles?
An open circuit has been detected in the pump current circuit of the linear oxygen sensor.
OBD-II Code Audi
P1178 — Audi — Linear O2 Sensor Pump Current Open Circuit
An open circuit has been detected in the pump current circuit of the linear oxygen sensor.
Common symptoms
- Check engine light illuminated.
Possible causes
- Damaged wiring or sensor fault.
Initial recommendation
Diagnose the linear O2 sensor and wiring.
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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