P0147
O2 Sensor Heater Circuit Bank 1 Sensor 3
P0147 is an OBD-II diagnostic trouble code meaning: O2 Sensor Heater Circuit Bank 1 Sensor 3. Common causes: open or short circuit in the sensor heating circuit, malfunction of the oxygen sensor itself. Estimated repair cost: $56–167.
Symptoms
- Increased fuel consumption
- Unstable engine operation
- Check Engine Light Is On
- Increased emissions of harmful substances
Causes
- Open or short circuit in the sensor heating circuit
- Malfunction of the oxygen sensor itself
- Wiring Harness Problems
- Heating circuit relay or fuse malfunction
- Oxidation of contacts
How to Fix
- Check the integrity of the fuses and relays of the heating circuit
- Inspect the wiring harness for damage
- Check the resistance of the sensor heating element
- Check the voltage in the heating circuit
- If necessary, replace the oxygen sensor
Related codes
Error P0147 by Vehicle Brand
FAQ
What does the P0147 code mean?
P0147 is an OBD-II diagnostic trouble code that indicates: O2 Sensor Heater Circuit Bank 1 Sensor 3
What causes a P0147 error code?
The most common causes of P0147 include: Open or short circuit in the sensor heating circuit; Malfunction of the oxygen sensor itself; Wiring Harness Problems; Heating circuit relay or fuse malfunction.
How do I fix a P0147 diagnostic trouble code?
To fix P0147: Check the integrity of the fuses and relays of the heating circuit. Inspect the wiring harness for damage. Check the resistance of the sensor heating element. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0147?
Limited driving only, diagnose soon
How much does it cost to fix P0147?
The estimated repair cost for P0147 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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