What does code P1135 mean on Audi vehicles?
An electrical malfunction has been detected in the heater circuits of Sensor 2 on both banks.
OBD-II Code Audi
P1135 — Audi — O2 Sensor Heater Circuit Bank 1 and Bank 2 Sensor 2 Electrical Malfunction
An electrical malfunction has been detected in the heater circuits of Sensor 2 on both banks.
Common symptoms
- Check engine light illuminated.
Possible causes
- Electrical fault in heater circuit.
Initial recommendation
Diagnose heater circuit.
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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