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P1135 — Air-Fuel Sensor Heater Circuit Response (Bank 1 Sensor 1)

Toyota-specific: Air-fuel ratio sensor heater not reaching temperature in expected time.

Severity: MediumRepair: $100-$350Difficulty: Easy

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Common symptoms of P1135

Common causes of P1135

Repair cost & difficulty

Typical cost to fix P1135: $100-$350 · Difficulty: Easy

Pro tip: Toyota uses air-fuel ratio sensors instead of standard O2 sensors. They're more expensive ($150-300) but also more precise.

Vehicles commonly affected

Toyota/Lexus

Related trouble codes

P0135P0030

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ScanFixAI is a diagnostic aid, not a substitute for professional repair. Cost estimates are typical ranges and vary by vehicle and region.