P0137 Volkswagen Code - O2 Sensor Circuit Low Voltage
Quick Answer
The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. Common causes include Faulty Rear Heated Oxygen Sensor Bank 1, Rear Heated Oxygen Sensor Bank 1 harness is open or shorted, Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P0137 Volkswagen indicates O2 Sensor Circuit Low Voltage.
- Common causes
- Common causes include Faulty Rear Heated Oxygen Sensor Bank 1, Rear Heated Oxygen Sensor Bank 1 harness is open or shorted, Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Code P0137 Volkswagen Description
What are the Possible Causes of the DTC P0137 Volkswagen?
- Faulty Rear Heated Oxygen Sensor Bank 1
- Rear Heated Oxygen Sensor Bank 1 harness is open or shorted
- Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection
- Inappropriate fuel pressure
- Faulty fuel injectors
- Intake air leaks may be faulty
- Exhaust gas leaks
How to Fix the DTC P0137 Volkswagen?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0137 Volkswagen 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 P0137 Volkswagen Code
1. What are the common symptoms of OBDII code P0137 in a Volkswagen related to the O2 sensor circuit low voltage issue?
The common symptoms include poor fuel economy, rough idling, engine hesitation, and an illuminated check engine light.
2. What are the possible causes of OBDII code P0137 in a Volkswagen indicating a low voltage condition in the O2 sensor circuit?
Potential causes may include a faulty O2 sensor, damaged wiring or connectors, exhaust leaks, or issues with the engine's computer system.
3. How can I diagnose the O2 sensor circuit low voltage issue causing OBDII code P0137 in my Volkswagen?
You can diagnose the problem by conducting a visual inspection of the sensor and its connections, testing the sensor's voltage output, checking for exhaust leaks, and using an OBDII scanner to monitor sensor data.
4. What are the recommended steps to repair OBDII code P0137 in a Volkswagen due to a low voltage issue in the O2 sensor circuit?
Repair steps may involve replacing the faulty O2 sensor, repairing damaged wiring or connectors, fixing any exhaust leaks, or resetting the engine's computer after making necessary repairs.
5. Can driving with OBDII code P0137 related to the O2 sensor circuit low voltage problem damage my Volkswagen's engine?
Continued driving with this issue may lead to decreased fuel efficiency, engine performance issues, and potential damage to the catalytic converter over time.
6. Is it possible to reset the check engine light after repairing OBDII code P0137 caused by a low voltage condition in the O2 sensor circuit of a Volkswagen?
Yes, after repairing the issue, you can reset the check engine light using an OBDII scanner or disconnecting the car's battery for a few minutes.
7. Will OBDII code P0137 in a Volkswagen resolve on its own, or does it require immediate attention?
The issue causing code P0137 is unlikely to resolve on its own and should be addressed promptly to prevent further engine performance issues and potential damage.
8. How can I prevent O2 sensor circuit low voltage issues leading to OBDII code P0137 in my Volkswagen in the future?
Regular maintenance, such as checking the sensor's condition during tune-ups, ensuring proper wiring connections, and addressing exhaust leaks promptly, can help prevent this issue.
9. Are there any DIY repair options for fixing OBDII code P0137 related to the O2 sensor circuit low voltage problem in a Volkswagen?
While some basic checks like inspecting wiring and connectors can be done DIY, replacing the O2 sensor or addressing more complex issues may require professional assistance.
10. Can a Volkswagen still pass an emissions test with OBDII code P0137 triggered by the O2 sensor circuit low voltage issue?
In most cases, a vehicle with an active OBDII code like P0137 will fail an emissions test. It is recommended to repair the issue before attempting to pass an emissions inspection.
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