Emissions
Code P0141
O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 2
Plain English Meaning:Rear O2 sensor heater failure
✅
Green: Safe to Drive
Usually not urgent
P0141 Symptoms
- •Check engine light emissions fail
Most Common Causes of P0141
1Sensor failure wiring issue
P0141 Repair Playbook
Required Mechanic Tests
A qualified shop should perform these tests before replacing any parts to ensure they aren't guessing:
Test sensor circuit
Typical Fix Paths & Estimated Costs
Replace sensor $150–$400
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Parts for P0141 Repair
Common replacement parts for emissions codes. (Paid links)
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