P0137 2011 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 2011 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 2011 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 2011 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 2011 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 2011 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 2011 Toyota Camry Code
1. What does the OBDII code P0137 for a 2011 Toyota Camry indicate?
The code P0137 in a 2011 Toyota Camry specifically points to an issue with the Oxygen Sensor Circuit Low Voltage on Bank 1 Sensor 2.
2. What are the common symptoms of a P0137 error code in a 2011 Toyota Camry?
Common symptoms of a P0137 code in a 2011 Toyota Camry may include poor fuel efficiency, rough idling, and a noticeable decrease in engine performance.
3. What are the possible causes of a P0137 code in a 2011 Toyota Camry?
Potential causes of a P0137 code in a 2011 Toyota Camry can include a faulty oxygen sensor, damaged wiring or connectors, exhaust leaks, or issues with the engine's fuel system.
4. How can I diagnose a P0137 error code in my 2011 Toyota Camry?
To diagnose a P0137 code in a 2011 Toyota Camry, you can use an OBDII scanner to read the code, visually inspect the oxygen sensor and its wiring, and perform tests to check the sensor's voltage output.
5. Can I drive my 2011 Toyota Camry with a P0137 code?
It is not recommended to drive your 2011 Toyota Camry with a P0137 code for an extended period as it can lead to decreased fuel efficiency and potential damage to the catalytic converter.
6. How can I repair a P0137 code in my 2011 Toyota Camry?
Repairing a P0137 code in a 2011 Toyota Camry typically involves replacing the Bank 1 Sensor 2 oxygen sensor, checking and repairing any damaged wiring, and clearing the error code with an OBDII scanner.
7. Will resetting the error code fix the issue with a P0137 code in a 2011 Toyota Camry?
Simply resetting the error code may temporarily clear the warning light, but it will not fix the underlying issue causing the P0137 code in a 2011 Toyota Camry.
8. What is the function of Bank 1 Sensor 2 in a 2011 Toyota Camry's oxygen sensor system?
Bank 1 Sensor 2 in a 2011 Toyota Camry's oxygen sensor system is responsible for monitoring the oxygen levels downstream of the catalytic converter to ensure proper emissions control.
9. How often should the oxygen sensor be replaced in a 2011 Toyota Camry?
The oxygen sensor in a 2011 Toyota Camry, including Bank 1 Sensor 2, is typically recommended to be replaced every 60,000 to 90,000 miles or as specified in the vehicle's maintenance schedule.
10. Can a P0137 code in a 2011 Toyota Camry cause the vehicle to fail an emissions test?
Yes, a P0137 code in a 2011 Toyota Camry can cause the vehicle to fail an emissions test due to improper oxygen sensor readings affecting the vehicle's emissions control system.
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