P0137 2008 Toyota Prius Code - Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2
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 2008 Toyota Prius indicates Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2.
- 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 2008 Toyota Prius Description
What are the Possible Causes of the DTC P0137 2008 Toyota Prius?
- 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 2008 Toyota Prius?
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 2008 Toyota Prius 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 2008 Toyota Prius Code
1. What does OBDII code P0137 on a 2008 Toyota Prius mean?
This code indicates a low voltage condition in the oxygen sensor circuit for Bank 1 Sensor 2.
2. What are the common symptoms of a P0137 code in a 2008 Toyota Prius?
Common symptoms include poor fuel economy, rough idling, hesitation during acceleration, and an illuminated check engine light.
3. What are the possible causes of a P0137 code in a 2008 Toyota Prius?
Potential causes include a faulty oxygen sensor, damaged wiring or connectors in the sensor circuit, exhaust leaks, or issues with the engine's air-fuel mixture.
4. How can I diagnose a P0137 code in my 2008 Toyota Prius?
Diagnosis typically involves using a scan tool to read the code, testing the oxygen sensor's voltage output, inspecting the sensor and its wiring for damage, and checking for exhaust leaks.
5. Can I continue driving my 2008 Toyota Prius with a P0137 code?
While the vehicle may still be driveable with this code, it is recommended to address the issue promptly to prevent potential damage to the catalytic converter and ensure optimal engine performance.
6. How do I repair a P0137 code on a 2008 Toyota Prius?
Repair options may include replacing the oxygen sensor, repairing damaged wiring or connectors, fixing exhaust leaks, or addressing any issues with the air-fuel mixture.
7. Can I reset the check engine light after fixing a P0137 code on a 2008 Toyota Prius?
Yes, the check engine light can be reset using an OBDII scan tool after the repair has been completed. This will clear the code and turn off the light.
8. How much does it cost to fix a P0137 code on a 2008 Toyota Prius?
The cost of repairs for a P0137 code can vary depending on the specific issue causing the code. Costs may include parts and labor for sensor replacement, wiring repairs, or other necessary fixes.
9. What is the role of Bank 1 Sensor 2 in the exhaust system of a 2008 Toyota Prius?
Bank 1 Sensor 2 is located downstream of the catalytic converter and monitors the oxygen levels in the exhaust gases to help ensure proper emissions control and engine performance.
10. How often should the oxygen sensors be replaced in a 2008 Toyota Prius?
Oxygen sensors typically have a lifespan of around 100,000 miles, but it's recommended to follow the manufacturer's maintenance schedule and replace them as needed to maintain optimal vehicle performance.
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