P0137 Honda Code - Secondary Heated Oxygen Sensor 2 Circuit Low Voltage
Quick Answer
The P0137 code for Honda vehicles indicates that there is a problem with the Secondary Heated Oxygen Sensor 2 Circuit, specifically that the voltage is lower than normal. Common causes include Faulty oxygen sensor, Wiring or connection issues, Exhaust leaks. 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 Honda indicates Secondary Heated Oxygen Sensor 2 Circuit Low Voltage.
- Common causes
- Common causes include Faulty oxygen sensor, Wiring or connection issues, Exhaust leaks.
- 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.
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Code P0137 Honda Description
The P0137 code for Honda vehicles indicates that there is a problem with the Secondary Heated Oxygen Sensor 2 Circuit, specifically that the voltage is lower than normal. The oxygen sensor is a crucial component of the vehicle's emissions control system, responsible for measuring the amount of oxygen in the exhaust gases to ensure proper fuel mixture and combustion. When the oxygen sensor detects low voltage, it means that the exhaust system is not functioning optimally, which can lead to decreased fuel efficiency, increased emissions, and potential engine damage if left unresolved.
Common Causes of P0137 Honda
- Faulty oxygen sensor
- Wiring or connection issues
- Exhaust leaks
- Engine vacuum leaks
- Problems with the catalytic converter
Symptoms of P0137 Honda
- Decreased fuel efficiency
- Rough idling or stalling
- Engine misfires
- Check Engine Light illuminated
- Failed emissions test
How to Fix P0137 Honda
- Use an OBD-II scanner to confirm the P0137 code and identify the specific issue with the oxygen sensor.
- Inspect the wiring and connections to the oxygen sensor for any damage or corrosion, and replace if necessary.
- Test the oxygen sensor's voltage output to determine if it is functioning correctly; if not, replace the sensor.
- Check for any exhaust or vacuum leaks that may be affecting the sensor's readings.
- Clear the code with the scanner after completing the repairs and test drive the vehicle to ensure the issue is resolved.
Cost to Fix P0137 Honda
The typical repair costs for addressing a P0137 code on a Honda vehicle can range from $150 to $400, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It is recommended to check with local shops for a more accurate estimate.
Tech Notes for P0137 Honda
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Information for Specific Honda Models
- P0137 2008 Honda Accord — O2 Sensor Circuit Low Voltage Bank 1 Sensor 2
- P0137 2009 Honda Accord — O2 Sensor Circuit Low Voltage Bank 1 Sensor 2
- P0137 2010 Honda Accord — O2 Sensor Circuit Low Voltage Bank 1 Sensor 2
- P0137 1996 Honda Civic — O2 Sensor Circuit Low Voltage Bank 1 Sensor 2
- P0137 1997 Honda Civic — O2 Sensor Circuit Low Voltage Bank 1 Sensor 2
- P0137 1998 Honda Civic — O2 Sensor Circuit Low Voltage Bank 1 Sensor 2
- P0137 1999 Honda Civic — O2 Sensor Circuit Low Voltage Bank 1 Sensor 2
- P0137 2000 Honda Civic — O2 Sensor Circuit Low Voltage Bank 1 Sensor 2
- P0137 2016 Honda CR-V — Secondary Heated Oxygen Sensor 2 Circuit Low Voltage
- P0137 2017 Honda CR-V — Secondary Heated Oxygen Sensor 2 Circuit Low Voltage
- P0137 2018 Honda CR-V — Secondary Heated Oxygen Sensor 2 Circuit Low Voltage
- P0137 2019 Honda CR-V — Secondary Heated Oxygen Sensor 2 Circuit Low Voltage
- P0137 2020 Honda CR-V — Secondary Heated Oxygen Sensor 2 Circuit Low Voltage
- P0137 2021 Honda CR-V — Secondary Heated Oxygen Sensor 2 Circuit Low Voltage
Frequently Asked Questions about P0137 Honda Code
1. What does the OBDII code P0137 mean on a Honda?
P0137 indicates that the Secondary Heated Oxygen Sensor 2 (typically located downstream of the catalytic converter) is detecting a low voltage signal, which may suggest an issue with the sensor or the fuel system.
2. What are the symptoms of a P0137 code on a Honda?
Common symptoms include an illuminated check engine light, decreased fuel efficiency, rough idling, possible engine hesitation, or no noticeable symptoms at all.
3. What causes the P0137 code on a Honda?
Possible causes include a faulty oxygen sensor, damaged wiring or connectors, an exhaust leak, or a problem with the engine control unit (ECU).
4. Can a bad catalytic converter trigger a P0137 code on a Honda?
Yes, a failing catalytic converter can cause improper exhaust flow, leading to low voltage readings from the downstream oxygen sensor.
5. How can I fix a P0137 code on my Honda?
Start by checking for damaged wiring or loose connectors near the oxygen sensor. Replace the oxygen sensor if needed, and inspect the exhaust system for leaks or damage.
6. Is driving with a P0137 code on a Honda safe?
While the car may remain drivable, ignoring the code can lead to reduced fuel efficiency and potential damage to other components, such as the catalytic converter.
7. How do I test the oxygen sensor for a P0137 code on a Honda?
Use a multimeter to check the sensor's resistance and voltage output. Compare the readings with the manufacturer’s specifications to determine if the sensor is functioning correctly.
8. Can a dirty air filter cause a P0137 code on a Honda?
A dirty air filter is unlikely to directly cause a P0137 code, but it can impact fuel mixture and engine performance, which might indirectly affect oxygen sensor readings.
9. Do I need to replace the oxygen sensor if I get a P0137 code on a Honda?
Not necessarily. First, inspect the wiring, connectors, and exhaust system. If those are in good condition, the oxygen sensor may need replacement.
10. Will clearing the P0137 code on my Honda fix the issue?
Clearing the code will turn off the check engine light temporarily, but the issue will reoccur if the underlying problem isn’t resolved.
Discuss the causes and fixes for P0137 Honda OBDII Code
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2005 honda crv & 2005 honda lx. Both have 2.4L 4cyl. Replaced rear and front o2 sensor on both cars. Code is still there.
P0139 for the LX. Also both still have p0325knock sensor, replaced those as well... -
Do you have any exhaust leaks?
Other than the sensors and exhaust leaks, I have not seen any other components triggering the P0137 code. The P0139, could also be cause for "Intake" leaks.If no leaks are found, then you may have a problem with the Engine Control Module (ECM), it's not common, but I have seen a few.
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I have the same vehicle and same code but m7y fuel consumption
is 260ks to 40 leterse
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