What does code P1135 mean on Toyota vehicles?
The ECU detects an abnormal response in the heater circuit of the air/fuel ratio sensor for bank 1 sensor 1.
OBD-II Code Toyota
P1135 — Toyota — Air/Fuel Ratio Sensor Heater Circuit Response (Bank 1 Sensor 1)
The ECU detects an abnormal response in the heater circuit of the air/fuel ratio sensor for bank 1 sensor 1.
Common symptoms
- Check engine light
Possible causes
- Faulty heater circuit
- wiring issue
Initial recommendation
Check air/fuel ratio sensor heater circuit 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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