P0137 2007 Toyota Camry Code - Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2
Quick Answer
In order to obtain a high purification rate of the carbon monoxide (CO), hydrocarbon (HC) and nitrogen oxide (NOx) components in the exhaust gas, a TWC is used. Common causes include Faulty Rear Heated Oxygen Sensor Bank 1, EFI Relay, Rear Heated Oxygen Sensor Bank 1 harness is open or shorted. 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 2007 Toyota Camry indicates Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2.
- Common causes
- Common causes include Faulty Rear Heated Oxygen Sensor Bank 1, EFI Relay, Rear Heated Oxygen Sensor Bank 1 harness is open or shorted.
- 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 2007 Toyota Camry Description
The HO2 sensor is located behind the TWC, and detects the oxygen concentration in the exhaust gas. Since the sensor is integrated with the heater that heats the sensing portion, it is possible to detect the oxygen concentration even when the intake air volume is low (the exhaust gas temperature is low). When the air-fuel ratio becomes lean, the oxygen concentration in the exhaust gas is rich. The HO2 sensor informs the ECM that the post-TWC air-fuel ratio is lean (low voltage, i.e. less than 0.45 V). Conversely, when the air-fuel ratio is richer than the stoichiometric air-fuel level, the oxygen concentration in the exhaust gas becomes lean. The HO2 sensor informs the ECM that the post-TWC air-fuel ratio is rich (high voltage, i.e. more than 0.45 V). The HO2 sensor has the property of changing its output voltage drastically when the air-fuel ratio is close to the stoichiometric level.
The ECM uses the supplementary information from the HO2 sensor to determine whether the air-fuel ratio after the TWC is rich or lean, and adjusts the fuel injection time accordingly. Thus, if the HO2 sensor is working improperly due to internal malfunctions, the ECM is unable to compensate for deviations in the primary air-fuel ratio control.
What are the Possible Causes of the DTC P0137 2007 Toyota Camry?
- Faulty Rear Heated Oxygen Sensor Bank 1
- EFI Relay
- 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 2007 Toyota Camry?
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 2007 Toyota Camry 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 2007 Toyota Camry Code
1. What are common symptoms of OBDII code P0137 on a 2007 Toyota Camry?
- Common symptoms include poor fuel economy, rough idling, hesitation during acceleration, and the illumination of the check engine light.
2. What does the OBDII code P0137 for a 2007 Toyota Camry indicate?
- The code P0137 indicates that the oxygen sensor circuit for Bank 1 Sensor 2 is experiencing low voltage, which may be caused by various issues.
3. What are the possible causes of the P0137 code on a 2007 Toyota Camry?
- Potential causes of the P0137 code include a faulty oxygen sensor, damaged wiring or connectors, exhaust leaks, engine misfires, and issues with the fuel system.
4. How can I diagnose the P0137 code on my 2007 Toyota Camry?
- Diagnosing the P0137 code involves using an OBDII scanner to retrieve the code, inspecting the oxygen sensor and related wiring, checking for exhaust leaks, and testing the sensor's voltage output.
5. Can I drive my 2007 Toyota Camry with the P0137 code?
- It is not recommended to drive your vehicle with the P0137 code present, as it can lead to poor engine performance and potential damage to the catalytic converter over time.
6. How do I repair the P0137 code on my 2007 Toyota Camry?
- Repairing the P0137 code typically involves replacing the Bank 1 Sensor 2 oxygen sensor, repairing any damaged wiring or connectors, addressing any exhaust leaks, and clearing the code with an OBDII scanner.
7. Will resetting the check engine light fix the P0137 code on my 2007 Toyota Camry?
- Resetting the check engine light may temporarily turn it off, but it will not fix the underlying issue causing the P0137 code. Proper diagnosis and repair are necessary to resolve the problem.
8. How much does it cost to repair the P0137 code on a 2007 Toyota Camry?
- The cost of repairing the P0137 code can vary depending on the cause of the issue, but it typically involves the cost of a new oxygen sensor, any necessary repairs, and labor charges from a mechanic.
9. Can a DIY enthusiast fix the P0137 code on a 2007 Toyota Camry?
- Depending on your level of automotive knowledge and experience, you may be able to replace the oxygen sensor or address simple wiring issues associated with the P0137 code. More complex issues may require professional help.
10. How often does the oxygen sensor need to be replaced in a 2007 Toyota Camry?
- The oxygen sensor typically has a lifespan of around 100,000 miles, but factors such as driving conditions and maintenance practices can affect its longevity. If the sensor fails, it will need to be replaced to resolve the P0137 code.
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