Engine-CodesLexus – P0058 Lexus

P0058 Lexus Code - Oxygen Sensor Heater Control Circuit High Bank 2 Sensor 2

Quick Answer

The P0058 diagnostic trouble code (DTC) for Lexus vehicles specifically refers to an issue with the Oxygen Sensor Heater Control Circuit High for Bank 2 Sensor 2. Common causes include Faulty Oxygen Sensor: The most common cause of the P0058 code is a malfunctioning oxygen sensor heater element, Wiring Issues: Damaged or corroded wiring in the oxygen sensor heater circuit can cause a high voltage signal, ECM Malfunction: A problem with the engine control module (ECM) can also trigger the P0058 code. 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
P0058 Lexus indicates Oxygen Sensor Heater Control Circuit High Bank 2 Sensor 2.
Common causes
Common causes include Faulty Oxygen Sensor: The most common cause of the P0058 code is a malfunctioning oxygen sensor heater element, Wiring Issues: Damaged or corroded wiring in the oxygen sensor heater circuit can cause a high voltage signal, ECM Malfunction: A problem with the engine control module (ECM) can also trigger the P0058 code.
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 12, 2024
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Code P0058 Lexus Description

The P0058 diagnostic trouble code (DTC) for Lexus vehicles specifically refers to an issue with the Oxygen Sensor Heater Control Circuit High for Bank 2 Sensor 2. This code indicates that there is a problem with the heating element circuit for the downstream oxygen sensor on the second bank of the engine. The oxygen sensor plays a crucial role in monitoring the amount of oxygen in the exhaust gases, which helps the engine control module (ECM) adjust the air-fuel mixture for optimal combustion efficiency.

OBDII Code P0058 Lexus - Oxygen Sensor Heater Control Circuit High Bank 2 Sensor 2
P0058 Lexus Code - Oxygen Sensor Heater Control Circuit High Bank 2 Sensor 2

Common Causes of P0058 Lexus

  1. Faulty Oxygen Sensor: The most common cause of the P0058 code is a malfunctioning oxygen sensor heater element.
  2. Wiring Issues: Damaged or corroded wiring in the oxygen sensor heater circuit can cause a high voltage signal.
  3. ECM Malfunction: A problem with the engine control module (ECM) can also trigger the P0058 code.
  4. Exhaust Leak: A leak in the exhaust system near the oxygen sensor can lead to incorrect readings.
  5. Short Circuit: A short circuit in the oxygen sensor heater circuit can cause the voltage to be too high.

Symptoms of P0058 Lexus

  1. Check Engine Light: The most common symptom associated with the P0058 code is the illumination of the check engine light on the vehicle's dashboard.
  2. Decreased Fuel Efficiency: A faulty oxygen sensor can lead to incorrect air-fuel mixture adjustments, resulting in decreased fuel efficiency.
  3. Rough Idle: The engine may experience rough idling or hesitation when the oxygen sensor is not functioning correctly.
  4. Poor Acceleration: The vehicle may exhibit sluggish acceleration or lack of power when the oxygen sensor is not providing accurate readings.
  5. Failed Emissions Test: A malfunctioning oxygen sensor can cause the vehicle to fail emissions tests due to increased emissions.

How to Fix P0058 Lexus

  1. Diagnose the Issue: Use an OBD-II scanner to retrieve the specific DTC and determine if it is indeed the oxygen sensor heater control circuit high for Bank 2 Sensor 2.
  2. Inspect Wiring: Check the wiring harness and connectors for any damage or corrosion. Repair or replace as necessary.
  3. Test Oxygen Sensor: Test the oxygen sensor's heater element to ensure it is functioning correctly. Replace the sensor if needed.
  4. Clear Codes: After making the necessary repairs, clear the DTC and reset the check engine light using the OBD-II scanner.
  5. Test Drive: Take the vehicle for a test drive to ensure that the issue has been resolved and that the check engine light does not reappear.

Cost to Fix P0058 Lexus

The cost of repairing the P0058 code for a Lexus vehicle can vary depending on the specific model and year of the vehicle, as well as the labor rates in your area. On average, the cost of replacing an oxygen sensor heater control circuit high for Bank 2 Sensor 2 can range from $200 to $400, including parts and labor. Keep in mind that additional costs may apply if there are other underlying issues that need to be addressed. It is recommended to consult with a certified mechanic or dealership to get an accurate estimate based on your vehicle's specific needs.

When is the Code Detected?

The P0058 is set when the ECM detects an excessively High voltage through the heated oxygen sensor heater circuit

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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.

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