Engine-CodesToyota – P0137 2005 Toyota Prius

P0137 2005 Toyota Prius Code - Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2

Quick Answer

The P0137 diagnostic trouble code (DTC) for a 2005 Toyota Prius indicates an issue with the Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2. Common causes include Faulty oxygen sensor, Damaged wiring or connectors in the sensor circuit, Vacuum leak in the intake system. 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 2005 Toyota Prius indicates Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2.
Common causes
Common causes include Faulty oxygen sensor, Damaged wiring or connectors in the sensor circuit, Vacuum leak in the intake system.
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.
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code P0137 2005 Toyota Prius Description

The P0137 diagnostic trouble code (DTC) for a 2005 Toyota Prius indicates an issue with the Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2. This code specifically refers to the oxygen sensor located downstream or after the catalytic converter in the exhaust system. The oxygen sensor plays a crucial role in monitoring the amount of oxygen in the exhaust gases and providing feedback to the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion.

OBDII Code P0137 2005 Toyota Prius - Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2
P0137 2005 Toyota Prius Code - Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2

Common Causes of P0137 2005 Toyota Prius

  1. Faulty oxygen sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. Vacuum leak in the intake system
  4. Exhaust leak near the sensor
  5. ECM software issue

Symptoms of P0137 2005 Toyota Prius

  1. Decreased fuel efficiency
  2. Check Engine Light illuminated
  3. Rough idling or stalling
  4. Increased emissions
  5. Engine hesitation or surging

How to Fix P0137 2005 Toyota Prius

  1. Use an OBD-II scanner to confirm the P0137 code and pinpoint the exact location of the issue.
  2. Inspect the oxygen sensor, wiring, and connectors for any visible damage or corrosion.
  3. Test the oxygen sensor using a multimeter to check for proper voltage output.
  4. Replace the oxygen sensor if it is faulty, damaged, or not functioning within specifications.
  5. Clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0137 2005 Toyota Prius

The typical repair costs for addressing a P0137 code on a 2005 Toyota Prius can range from $150 to $400, depending on the specific cause of the issue and the cost of parts and labor. This estimate includes the cost of a new oxygen sensor, any necessary wiring repairs, and the labor involved in diagnosing and fixing the problem. It's important to note that the actual cost may vary based on the location of the repair shop, the make and model of the vehicle, and the extent of the repairs needed. It is recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate. Labor rates at auto repair shops typically range from $80 to $150 per hour, but rates may differ based on various factors.

Tech Notes for P0137 2005 Toyota Prius

Replacing the Rear Heated Oxygen Sensor Bank 1 usually takes care of the problem.

When is the Code Detected?

The P0137 code is set when the Engine Control Module (ECM) detects that the rear O2 sensor signal voltage remains excessively low for an extended period of time.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0137 2005 Toyota Prius Code

1. What is the meaning of OBDII code P0137 on a 2005 Toyota Prius?

- P0137 indicates an Oxygen Sensor Circuit Low Voltage in Bank 1 Sensor 2 of the exhaust system.

2. What are the common symptoms of a P0137 code in a 2005 Toyota Prius?

- Common symptoms include poor fuel economy, rough idling, engine hesitation, and a possible check engine light.

3. What causes the P0137 code to appear on a 2005 Toyota Prius?

- The code is often triggered by a faulty oxygen sensor, wiring issues, exhaust leaks, or a malfunctioning catalytic converter.

4. How can I diagnose the P0137 code on my 2005 Toyota Prius?

- Diagnosing the code involves using an OBDII scanner to read the fault codes, inspecting the oxygen sensor and related wiring, and checking for exhaust leaks.

5. Can I drive my 2005 Toyota Prius with a P0137 code?

- It is not recommended to drive with a P0137 code for an extended period as it can lead to reduced fuel efficiency and potential damage to the catalytic converter.

6. How do I repair a P0137 code on a 2005 Toyota Prius?

- Repair options include replacing the Bank 1 Sensor 2 oxygen sensor, fixing any wiring issues, repairing exhaust leaks, or replacing the catalytic converter if necessary.

7. Is it possible to reset the P0137 code on a 2005 Toyota Prius without fixing the issue?

- While you can clear the code with an OBDII scanner, it will likely reappear if the underlying problem is not addressed.

8. How much does it cost to fix a P0137 code on a 2005 Toyota Prius?

- The cost of repair can vary depending on the exact cause of the issue, but it typically ranges from $100 to $400 for parts and labor.

9. Can a DIY enthusiast fix a P0137 code on a 2005 Toyota Prius?

- Depending on your skill level, replacing the oxygen sensor or repairing wiring issues may be possible for a DIY enthusiast. However, more complex repairs may require professional assistance.

10. How often does the P0137 code occur in a 2005 Toyota Prius?

- The P0137 code can occur sporadically or persistently, depending on the severity of the issue with the oxygen sensor or related components.

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