P0147 Chevrolet Code - HO2S Heater Circuit Bank 1 Sensor 3
Quick Answer
When the ignition is turned on, the battery voltage is supplied to HO2S 3 heater to provide for faster sensor warm-up, thus allowing the sensor to become active in a shorter period of time. Common causes include Faulty HO2S Heater Circuit Bank 1 Sensor 3, HO2S Heater Circuit Bank 1 Sensor 3 harness is open or shorted, HO2S Heater Circuit Bank 1 Sensor 3 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0147 Chevrolet indicates HO2S Heater Circuit Bank 1 Sensor 3.
- Common causes
- Common causes include Faulty HO2S Heater Circuit Bank 1 Sensor 3, HO2S Heater Circuit Bank 1 Sensor 3 harness is open or shorted, HO2S Heater Circuit Bank 1 Sensor 3 circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0147 Chevrolet Description
What are the Possible Causes of the DTC P0147 Chevrolet?
- Faulty HO2S Heater Circuit Bank 1 Sensor 3
- HO2S Heater Circuit Bank 1 Sensor 3 harness is open or shorted
- HO2S Heater Circuit Bank 1 Sensor 3 circuit poor electrical connection
How to Fix the DTC P0147 Chevrolet?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0147 Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0147 Chevrolet Code
1. What does OBDII code P0147 mean on a Chevrolet?
Code P0147 indicates a problem with the Heater Circuit for the Oxygen Sensor (HO2S) located in Bank 1, Sensor 3. It means the sensor's heater is not functioning as expected.
2. What are the common symptoms of code P0147 in a Chevrolet?
Symptoms may include poor fuel efficiency, the Check Engine Light turning on, and potential issues with emissions performance.
3. What causes the P0147 code on a Chevrolet?
Common causes include a faulty oxygen sensor, damaged wiring or connectors in the heater circuit, a blown fuse, or a malfunctioning powertrain control module (PCM).
4. How do I fix code P0147 on a Chevrolet?
Repairs may involve replacing the faulty oxygen sensor, repairing damaged wiring or connectors, checking and replacing any blown fuses, or, in rare cases, reprogramming or replacing the PCM.
5. Can I drive my Chevrolet with a P0147 code?
While the car may still run, driving with this code for an extended period can lead to increased emissions, reduced fuel efficiency, and potential damage to other components.
6. How do I diagnose the P0147 code on my Chevrolet?
Start by visually inspecting the wiring and connectors for damage, testing the oxygen sensor heater circuit with a multimeter, and checking the fuse for the heater circuit.
7. How much does it cost to fix a P0147 code on a Chevrolet?
The cost varies but typically ranges from $100 to $300 for parts and labor if the oxygen sensor needs replacement. Wiring or PCM repairs may cost more.
8. Can a bad oxygen sensor cause a P0147 code?
Yes, a faulty oxygen sensor is a common cause of this code, as its heater circuit may fail.
9. Is the P0147 code specific to Chevrolet vehicles?
No, P0147 is a generic OBDII code applicable to all vehicles, but the exact location and details of Sensor 3 in Bank 1 may vary by manufacturer.
10. Does a P0147 code affect emissions testing?
Yes, this code can cause your Chevrolet to fail an emissions test due to improper oxygen sensor function and increased exhaust emissions.
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