P0161 Fault Code — O2 Sensor Heater Circuit (Bank 2 Sensor 2)

Severity: 🟡 Medium — diagnose within a week

Post-cat O2 heater failure on Bank 2.

Common Symptoms

Common Causes

How We Fix It

Replace O2 sensor, check fuse and wiring.

Frequently Asked Questions

What does P0161 mean?

P0161 (O2 Sensor Heater Circuit (Bank 2 Sensor 2)) means Post-cat O2 heater failure on Bank 2. Common symptoms include mil on, delayed catalyst monitoring.

How much does P0161 repair cost in Hyderabad?

At GarageNation Hyderabad, we diagnose P0161 with dealer-grade scan tools and provide a fixed quote before any work begins. Call +91 8106316369 for an estimate.

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