P0137 2020 Honda CR-V Code - Secondary Heated Oxygen Sensor 2 Circuit Low Voltage
Quick Answer
The P0137 diagnostic trouble code (DTC) for a 2020 Honda CR-V specifically refers to the Secondary Heated Oxygen Sensor 2 Circuit Low Voltage. Common causes include Faulty oxygen sensor: The most common cause of this code is a malfunctioning oxygen sensor itself, Wiring issues: Damaged or corroded wiring connecting the oxygen sensor to the ECM can also trigger this code, Exhaust leaks: Leaks in the exhaust system can introduce air into the exhaust stream, affecting the oxygen sensor's readings. 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 2020 Honda CR-V indicates Secondary Heated Oxygen Sensor 2 Circuit Low Voltage.
- Common causes
- Common causes include Faulty oxygen sensor: The most common cause of this code is a malfunctioning oxygen sensor itself, Wiring issues: Damaged or corroded wiring connecting the oxygen sensor to the ECM can also trigger this code, Exhaust leaks: Leaks in the exhaust system can introduce air into the exhaust stream, affecting the oxygen sensor's readings.
- 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 2020 Honda CR-V Description
The P0137 diagnostic trouble code (DTC) for a 2020 Honda CR-V specifically refers to the Secondary Heated Oxygen Sensor 2 Circuit Low Voltage. This code indicates that there is a problem with the oxygen sensor located downstream of the catalytic converter on bank 1. The oxygen sensor, also known as the O2 sensor, is a crucial component of the vehicle's emissions control system. It measures the oxygen content in the exhaust gases and sends this information to the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion.
Common Causes of P0137 2020 Honda CR-V
- Faulty oxygen sensor: The most common cause of this code is a malfunctioning oxygen sensor itself.
- Wiring issues: Damaged or corroded wiring connecting the oxygen sensor to the ECM can also trigger this code.
- Exhaust leaks: Leaks in the exhaust system can introduce air into the exhaust stream, affecting the oxygen sensor's readings.
- Engine misfires: Engine misfires can cause unburned fuel to reach the oxygen sensor, affecting its performance.
- Exhaust system damage: Physical damage to the exhaust system, such as a damaged catalytic converter, can also lead to this code.
Symptoms of P0137 2020 Honda CR-V
- Decreased fuel efficiency: A faulty oxygen sensor can cause the engine to run rich or lean, resulting in poor fuel economy.
- Rough idling or stalling: Incorrect air-fuel mixture can lead to rough idling or even engine stalling.
- Check Engine Light: The illumination of the Check Engine Light on the dashboard is a common symptom associated with this code.
- Failed emissions test: A malfunctioning oxygen sensor can lead to increased emissions, causing the vehicle to fail emissions testing.
How to Fix P0137 2020 Honda CR-V
- Diagnose the issue: Use a scan tool to retrieve the fault code and further diagnose the problem with the oxygen sensor.
- Inspect wiring: Check the wiring harness for any damage or corrosion and repair or replace as necessary.
- Replace oxygen sensor: If the sensor is faulty, it will need to be replaced with a new one compatible with the vehicle.
- Clear codes: Once the repair is completed, clear the fault codes from the ECM and test drive the vehicle to ensure the issue has been resolved.
- Verify repair: After driving the vehicle, recheck for any fault codes to ensure the repair was successful.
Cost to Fix P0137 2020 Honda CR-V
The cost of repairing a P0137 code on a 2020 Honda CR-V can vary depending on the specific cause of the issue. In general, the cost range for this repair can be between $200 and $500, including the cost of the oxygen sensor itself, which typically ranges from $50 to $200. Labor costs can add an additional $100 to $300, depending on the shop's hourly labor rate. It's important to note that diagnostic time and labor rates can vary, so it's advisable to obtain quotes from multiple auto repair shops to ensure a competitive price. Additionally, factors such as the location of the repair shop, vehicle make and model, and engine type can also influence the final cost.
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Frequently Asked Questions about P0137 2020 Honda CR-V Code
What does the OBDII code P0137 mean for a 2020 Honda CR-V?
P0137 indicates that the secondary heated oxygen sensor (HO2S 2) is experiencing a low voltage condition, suggesting that it may be malfunctioning or that there is an issue with the circuit.
What are the common symptoms associated with the P0137 code?
Common symptoms include poor fuel economy, increased emissions, a rough idle, and the check engine light illuminating on the dashboard.
What could cause the P0137 code to trigger in my Honda CR-V?
Causes can include a faulty secondary oxygen sensor, damaged wiring or connectors in the sensor circuit, exhaust leaks, or issues with the vehicle's engine control unit (ECU).
How can I diagnose the issue related to code P0137?
To diagnose P0137, you can use an OBDII scanner to confirm the code, inspect the wiring and connectors for damage, test the secondary oxygen sensor's voltage output, and check for exhaust leaks.
What is the typical repair for a P0137 code?
Typical repairs may involve replacing the faulty secondary heated oxygen sensor, repairing any damaged wiring or connectors, or resolving any exhaust leaks present in the system.
Can I drive my Honda CR-V with the P0137 code?
While it may be possible to drive the vehicle, it is not recommended, as it can lead to decreased fuel efficiency, increased emissions, and potential damage to the catalytic converter over time.
How much does it cost to fix the P0137 code?
Repair costs can vary widely depending on the cause; replacing the oxygen sensor typically ranges from $100 to $300, while more extensive repairs like wiring fixes may cost more.
Will clearing the code P0137 fix the problem?
Clearing the code may temporarily turn off the check engine light, but it will not fix the underlying issue. The code will likely return if the problem is not resolved.
Is there a risk of damaging other components if I ignore the P0137 code?
Yes, ignoring the P0137 code can lead to further issues, such as damaging the catalytic converter due to improper fuel mixture, which can result in more expensive repairs down the line.
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