P0141
O2 Sensor Heater Circuit Bank 1 Sensor 2
P0141 is an OBD-II diagnostic trouble code meaning: O2 Sensor Heater Circuit Bank 1 Sensor 2. Common causes: open or short circuit in the oxygen sensor heating circuit, malfunction of the oxygen sensor itself. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Increased fuel consumption
- Unstable engine operation at idle
- Reduced catalytic converter efficiency
Causes
- Open or short circuit in the oxygen sensor heating circuit
- Malfunction of the oxygen sensor itself
- Problems with the wiring harness or connectors
- Heating circuit relay or fuse malfunction
- ECU problems (rare)
How to Fix
- Check the integrity of the sensor heating circuit (resistance, voltage)
- Inspect the wiring harness and connectors for damage.
- Check the fuse and relay of the heating circuit
- Replace the oxygen sensor if necessary
- Clear the error code and check if it returns
Related codes
Error P0141 by Vehicle Brand
FAQ
What does the P0141 code mean?
P0141 is an OBD-II diagnostic trouble code that indicates: O2 Sensor Heater Circuit Bank 1 Sensor 2
What causes a P0141 error code?
The most common causes of P0141 include: Open or short circuit in the oxygen sensor heating circuit; Malfunction of the oxygen sensor itself; Problems with the wiring harness or connectors; Heating circuit relay or fuse malfunction.
How do I fix a P0141 diagnostic trouble code?
To fix P0141: Check the integrity of the sensor heating circuit (resistance, voltage). Inspect the wiring harness and connectors for damage.. Check the fuse and relay of the heating circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0141?
Limited driving only, diagnose soon
How much does it cost to fix P0141?
The estimated repair cost for P0141 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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