P0135 Fault Code — O2 Sensor Heater Circuit (Bank 1 Sensor 1)

Severity: 🟡 Medium — diagnose within a week

O2 sensor heater element has failed — sensor takes too long to warm up.

Common Symptoms

Common Causes

How We Fix It

Replace O2 sensor, check heater circuit fuse and wiring.

Frequently Asked Questions

What does P0135 mean?

P0135 (O2 Sensor Heater Circuit (Bank 1 Sensor 1)) means O2 sensor heater element has failed — sensor takes too long to warm up. Common symptoms include cold-start rough running, slightly higher fuel use, mil on.

How much does P0135 repair cost in Hyderabad?

At GarageNation Hyderabad, we diagnose P0135 with dealer-grade scan tools and provide a fixed quote before any work begins. Call +91 8106316369 for an estimate.

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