P0347 Code - Camshaft Position Sensor 'A' Circuit Low Input Bank 2
Quick Answer
The P0347 diagnostic trouble code (DTC) indicates a problem with the camshaft position sensor 'A' circuit low input on bank 2 of the engine. Common causes include Faulty camshaft position sensor: The most common cause of the P0347 code is a defective camshaft position sensor 'A' on bank 2, Over time, the sensor can wear out, leading to a low input signal, Wiring issues: Damaged or corroded wiring connecting the camshaft position sensor to the ECM can result in a low input signal. 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
- P0347 indicates Camshaft Position Sensor 'A' Circuit Low Input Bank 2.
- Common causes
- Common causes include Faulty camshaft position sensor: The most common cause of the P0347 code is a defective camshaft position sensor 'A' on bank 2, Over time, the sensor can wear out, leading to a low input signal, Wiring issues: Damaged or corroded wiring connecting the camshaft position sensor to the ECM can result in a low input signal.
- 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.
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Code P0347 Description
The P0347 diagnostic trouble code (DTC) indicates a problem with the camshaft position sensor 'A' circuit low input on bank 2 of the engine. The camshaft position sensor is a crucial component that monitors the position of the camshaft relative to the crankshaft in order to ensure proper engine timing. In this case, a low input signal from the camshaft position sensor 'A' on bank 2 indicates that the sensor is not detecting the expected voltage level. This can lead to issues with engine performance, fuel efficiency, and emissions.
Common Causes of P0347
- Faulty camshaft position sensor: The most common cause of the P0347 code is a defective camshaft position sensor 'A' on bank 2. Over time, the sensor can wear out, leading to a low input signal.
- Wiring issues: Damaged or corroded wiring connecting the camshaft position sensor to the ECM can result in a low input signal.
- Poor electrical connection: Loose or poor electrical connections at the camshaft position sensor or ECM can cause the sensor to send a low input signal.
- ECU malfunction: A malfunctioning engine control module (ECM) can also trigger the P0347 code if it is not properly receiving signals from the camshaft position sensor.
- Timing chain or belt issues: If the timing chain or belt on bank 2 is loose or out of alignment, it can affect the camshaft position sensor's readings, leading to a low input signal.
Symptoms of P0347
- Engine misfires: The engine may misfire or run rough due to incorrect ignition timing caused by the faulty camshaft position sensor.
- Rough idling: The vehicle may experience rough idling or fluctuating RPMs when the camshaft position sensor 'A' circuit on bank 2 is not functioning properly.
- Decreased fuel efficiency: A malfunctioning camshaft position sensor can lead to poor fuel combustion, resulting in decreased fuel efficiency.
- Check engine light: The vehicle's check engine light may illuminate to indicate a problem with the camshaft position sensor 'A' circuit low input on bank 2.
- Difficulty starting the engine: A faulty camshaft position sensor can make it difficult to start the engine, especially in cold weather or after the vehicle has been sitting for a while.
How to Fix P0347
- Diagnose the issue: Use a diagnostic scan tool to confirm the P0347 code and pinpoint the exact cause of the low input signal from the camshaft position sensor 'A' on bank 2.
- Inspect wiring and connections: Check the wiring harness and connections for any damage, corrosion, or loose connections. Repair or replace as needed.
- Test the camshaft position sensor: Test the camshaft position sensor 'A' on bank 2 using a multimeter to determine if it is sending the correct voltage signal. Replace the sensor if necessary.
- Check the ECM: Inspect the engine control module (ECM) to ensure it is functioning properly and receiving signals from the camshaft position sensor. Replace the ECM if it is faulty.
- Verify repair: After completing the necessary repairs, clear the DTC and test drive the vehicle to ensure that the issue has been resolved.
Cost to Fix P0347
The cost of repairing the P0347 code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. In general, the cost of replacing a camshaft position sensor can range from $50 to $200, depending on the make and model of the vehicle. Labor costs typically range from $80 to $150 per hour, and it may take 1-2 hours to diagnose and repair the issue. Overall, the total cost of addressing the P0347 code could range from $150 to $500, including parts and labor. It is recommended to consult with a professional mechanic or auto repair shop for a more accurate cost estimate based on the specific circumstances of your vehicle.
Tech Notes for P0347
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Code P0347 Information for Specific Makes
- P0347 Audi — Camshaft Position Sensor Intake Circuit Low Bank 2
- P0347 Lexus — Camshaft Position Sensor 'A' Circuit Low Input Bank 2
- P0347 Scion — Camshaft Position Sensor 'A' Circuit Low Input Bank 2
- P0347 Toyota — Camshaft Position Sensor 'A' Circuit Low Input Bank 2
- P0347 Volkswagen — Camshaft Position Sensor Intake Circuit Low Bank 2
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