P2247 BMW Code - Upstream Oxygen Sensor Open Circuit Monitoring Reference Voltage Failure Bank 2
Quick Answer
The oxygen sensor circuit monitoring detects the following malfunctions by evaluating the error information received from oxygen sensor monitoring functions. Common causes include Faulty Upstream Oxygen Sensor Bank 2, Upstream Oxygen Sensor Bank 2 harness is open or shorted, Upstream Oxygen Sensor Bank 2 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
- P2247 BMW indicates Upstream Oxygen Sensor Open Circuit Monitoring Reference Voltage Failure Bank 2.
- Common causes
- Common causes include Faulty Upstream Oxygen Sensor Bank 2, Upstream Oxygen Sensor Bank 2 harness is open or shorted, Upstream Oxygen Sensor Bank 2 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 P2247 BMW Description
This function shall be triggered only if one of the following diagnosis is active (to set the readiness bit), which are 'Upstream Oxygen Sensor - Signal Monitoring During Fuel Cut-off' and 'Upstream Oxygen Sensor - Heater Monitoring'. The function shall go to the state = “active” only if one of the above diagnosis detected a fault.
If a heater error exists and sensor voltage is too low, while the internal resistance measurement is turned off, an open circuit in the line 'Reference voltage' occurred.
What are the Possible Causes of the DTC P2247 BMW?
- Faulty Upstream Oxygen Sensor Bank 2
- Upstream Oxygen Sensor Bank 2 harness is open or shorted
- Upstream Oxygen Sensor Bank 2 circuit poor electrical connection
How to Fix the DTC P2247 BMW?
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 P2247 BMW 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.
Need more information about the P2247 BMW code?
Need more information on how to fix the P2247 BMW code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2247 BMW code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P2247 BMW Code
1. What does the OBDII code P2247 mean on a BMW?
The code P2247 indicates an "Upstream Oxygen Sensor Open Circuit Monitoring Reference Voltage Failure" in Bank 2, meaning the ECU has detected an issue with the reference voltage for the oxygen sensor.
2. What are the common symptoms of the P2247 code on a BMW?
Symptoms may include a check engine light, poor fuel efficiency, rough idling, decreased engine performance, or failed emissions tests.
3. What causes the P2247 code on a BMW?
Common causes include a damaged or faulty upstream oxygen sensor, wiring issues such as broken or corroded connections, or a malfunctioning engine control unit (ECU).
4. Is it safe to drive a BMW with the P2247 code?
It is generally safe to drive short distances, but driving for extended periods with this code can result in poor fuel economy, higher emissions, and possible damage to the catalytic converter.
5. How do you diagnose the P2247 code on a BMW?
Diagnosis involves inspecting the oxygen sensor, checking for damaged wiring or loose connections, testing the reference voltage with a multimeter, and verifying proper ECU operation.
6. How is the P2247 code fixed on a BMW?
Repairs may include replacing the faulty upstream oxygen sensor, fixing damaged wiring or connectors, or reprogramming or replacing the ECU if necessary.
7. Can a dirty or contaminated oxygen sensor cause the P2247 code?
Yes, a contaminated sensor may fail to function properly, potentially triggering this code. Cleaning the sensor might help, but replacement is often required.
8. Is the P2247 code specific to BMW vehicles?
No, the P2247 code is a generic OBDII code, but its interpretation and repair steps may vary slightly depending on the vehicle make and model.
9. How much does it cost to repair the P2247 code on a BMW?
Repair costs depend on the issue but typically range from $150 to $400 for parts and labor if the oxygen sensor is replaced, with higher costs for ECU-related repairs.
10. Can a software update fix the P2247 code on a BMW?
In some cases, a software update to the ECU can resolve the issue if it’s related to a programming error, but this is less common than physical repairs.
Discuss the causes and fixes for P2247 BMW OBDII Code
Code P2247 BMW comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
