P0142
O2 Sensor Circuit Bank 1 Sensor 3
P0142 is an OBD-II diagnostic trouble code meaning: O2 Sensor Circuit Bank 1 Sensor 3. Common causes: oxygen sensor circuit open, damage to the oxygen sensor. Estimated repair cost: $56–167.
Symptoms
- Increased fuel consumption
- Deterioration of vehicle dynamics
- Check Engine Light Is On
Causes
- Oxygen sensor circuit open
- Damage to the oxygen sensor
- Wiring Harness Problems
- Short circuit in the circuit
How to Fix
- Check the integrity of the wiring harness
- Check the resistance of the oxygen sensor
- Replace the oxygen sensor if necessary
- Clear the error and check if it returns
Related codes
Error P0142 by Vehicle Brand
FAQ
What does the P0142 code mean?
P0142 is an OBD-II diagnostic trouble code that indicates: O2 Sensor Circuit Bank 1 Sensor 3
What causes a P0142 error code?
The most common causes of P0142 include: Oxygen sensor circuit open; Damage to the oxygen sensor; Wiring Harness Problems; Short circuit in the circuit.
How do I fix a P0142 diagnostic trouble code?
To fix P0142: Check the integrity of the wiring harness. Check the resistance of the oxygen sensor. Replace the oxygen sensor if necessary. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0142?
Limited driving only, diagnose soon
How much does it cost to fix P0142?
The estimated repair cost for P0142 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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