Engine-CodesScion – P0058 Scion

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

Quick Answer

The P0058 Scion diagnostic trouble code (DTC) 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 this code is a malfunctioning oxygen sensor heater element, Wiring Issues: Damaged or corroded wiring in the oxygen sensor heater circuit can cause high resistance and trigger the code, ECM Malfunction: A problem with the engine control module (ECM) can also lead to issues with the oxygen sensor heater circuit. 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 Scion indicates Oxygen Sensor Heater Control Circuit High Bank 2 Sensor 2.
Common causes
Common causes include Faulty Oxygen Sensor: The most common cause of this code is a malfunctioning oxygen sensor heater element, Wiring Issues: Damaged or corroded wiring in the oxygen sensor heater circuit can cause high resistance and trigger the code, ECM Malfunction: A problem with the engine control module (ECM) can also lead to issues with the oxygen sensor heater circuit.
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 Scion Description

The P0058 Scion diagnostic trouble code (DTC) 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 of the downstream oxygen sensor located on the second bank of cylinders in the exhaust system. 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. The heater circuit is responsible for quickly bringing the oxygen sensor up to operating temperature for accurate readings.

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

Common Causes of P0058 Scion

  1. Faulty Oxygen Sensor: The most common cause of this code is a malfunctioning oxygen sensor heater element.
  2. Wiring Issues: Damaged or corroded wiring in the oxygen sensor heater circuit can cause high resistance and trigger the code.
  3. ECM Malfunction: A problem with the engine control module (ECM) can also lead to issues with the oxygen sensor heater circuit.
  4. Exhaust Leak: A leak in the exhaust system near the oxygen sensor can cause the heater circuit to operate outside the normal range.
  5. Short Circuit: A short circuit in the oxygen sensor heater circuit can also trigger this code.

Symptoms of P0058 Scion

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the dashboard.
  2. Poor Fuel Economy: A faulty oxygen sensor can lead to incorrect air-fuel mixture adjustments, resulting in decreased fuel efficiency.
  3. Rough Idling: The engine may experience rough idling or hesitation due to inaccurate sensor readings.
  4. Increased Emissions: A malfunctioning oxygen sensor can cause increased emissions, potentially leading to a failed emissions test.
  5. Engine Misfires: In severe cases, the engine may experience misfires or hesitation during acceleration.

How to Fix P0058 Scion

  1. Diagnose the Issue: Use a scan tool to retrieve the specific DTC and perform a visual inspection of the oxygen sensor and its wiring.
  2. Test the Oxygen Sensor: Check the resistance of the oxygen sensor heater element to determine if it is faulty.
  3. Inspect Wiring: Inspect the wiring harness for any damage, corrosion, or loose connections that may be causing the issue.
  4. Replace Oxygen Sensor: If the oxygen sensor heater element is faulty, replace the oxygen sensor with a new one.
  5. Clear Codes: After completing the repair, clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0058 Scion

The typical repair costs for addressing a P0058 Scion code can range from $150 to $400, including parts and labor. However, it's important to note that the actual cost can vary depending on the specific make and model of the vehicle, the location of the repair shop, and the hourly labor rates. It's advisable to contact local auto repair shops for accurate estimates based on your individual circumstances. Keep in mind that diagnosis time and labor rates can significantly impact the final cost of the repair.

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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