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Engine-Codes – MINI – P0058 MINI

P0058 MINI Code - HO2S 22 Heater Control Circuit High

Quick Answer

The P0058 MINI diagnostic trouble code (DTC) refers to a malfunction in the Heater Control Circuit of the HO2S (Heated Oxygen Sensor) 22, which is also known as the rear oxygen sensor on Bank 2. Common causes include Faulty Oxygen Sensor: The most common cause of the P0058 code is a faulty HO2S 22 sensor itself, Wiring Issues: Damaged or corroded wiring connections to the sensor can lead to heater circuit malfunctions, Blown Fuse: A blown fuse in the heater circuit can prevent the sensor from receiving power. 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 MINI indicates HO2S 22 Heater Control Circuit High.
Common causes
Common causes include Faulty Oxygen Sensor: The most common cause of the P0058 code is a faulty HO2S 22 sensor itself, Wiring Issues: Damaged or corroded wiring connections to the sensor can lead to heater circuit malfunctions, Blown Fuse: A blown fuse in the heater circuit can prevent the sensor from receiving power.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0058 MINI Description

The P0058 MINI diagnostic trouble code (DTC) refers to a malfunction in the Heater Control Circuit of the HO2S (Heated Oxygen Sensor) 22, which is also known as the rear oxygen sensor on Bank 2. This sensor plays a crucial role in monitoring the oxygen levels in the exhaust gases and providing feedback to the engine control module (ECM) for optimal fuel-air mixture adjustments. The heater control circuit is responsible for ensuring the sensor reaches operating temperature quickly for accurate readings.

OBDII Code P0058 MINI - HO2S 22 Heater Control Circuit High
P0058 MINI Code - HO2S 22 Heater Control Circuit High

Common Causes of P0058 MINI

  1. Faulty Oxygen Sensor: The most common cause of the P0058 code is a faulty HO2S 22 sensor itself.
  2. Wiring Issues: Damaged or corroded wiring connections to the sensor can lead to heater circuit malfunctions.
  3. Blown Fuse: A blown fuse in the heater circuit can prevent the sensor from receiving power.
  4. ECM Malfunction: A malfunctioning engine control module may not be providing the correct signals to the sensor.
  5. Exhaust Leak: An exhaust leak near the sensor can cause false readings and trigger the P0058 code.

Symptoms of P0058 MINI

  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 malfunctioning HO2S 22 can lead to incorrect fuel-air mixture adjustments, resulting in decreased fuel efficiency.
  3. Rough Idle: The engine may exhibit rough idling or stalling due to incorrect sensor readings affecting fuel delivery.
  4. Increased Emissions: A faulty oxygen sensor can cause the vehicle to emit higher levels of harmful pollutants.
  5. Engine Misfires: In severe cases, the engine may experience misfires or hesitation during acceleration due to incorrect sensor data.

How to Fix P0058 MINI

  1. Diagnostic Inspection: Begin by using a scan tool to diagnose the specific cause of the P0058 code and verify the issue with the HO2S 22 heater circuit.
  2. Sensor Replacement: If the sensor is faulty, replace the HO2S 22 sensor with a new, OEM-quality part.
  3. Check Wiring: Inspect the wiring harness for any damage or corrosion, repairing or replacing sections as necessary.
  4. Fuse Check: Verify the condition of the fuse related to the heater circuit and replace if necessary.
  5. ECM Testing: If all other components check out, test the engine control module for proper operation and replace if deemed faulty.

Cost to Fix P0058 MINI

The typical cost to repair the HO2S 22 Heater Control Circuit High issue can range from $150 to $400, depending on the specific cause of the problem and the cost of parts and labor in your area. It's important to note that diagnostic time and labor rates at auto repair shops can vary significantly, so it's advisable to obtain quotes from multiple shops to ensure a competitive price. Additionally, factors such as the vehicle make and model, as well as engine type, can also influence the final repair costs.

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.

Frequently Asked Questions about P0058 MINI Code

1. What does OBDII code P0058 for a MINI mean?

This code, HO2S 22 Heater Control Circuit High, indicates an issue with the oxygen sensor (O2 sensor) heater circuit for bank 2 sensor 2 in your MINI.

2. What are the common symptoms of OBDII code P0058 in a MINI?

Common symptoms include decreased fuel efficiency, rough idling, engine misfires, and the illumination of the check engine light on the dashboard.

3. What are some possible causes of OBDII code P0058 in a MINI?

Potential causes of this code include a faulty oxygen sensor, damaged wiring or connectors in the heater circuit, a blown fuse, or an issue with the engine control module (ECM).

4. How serious is OBDII code P0058 in a MINI?

While the vehicle may still be operable when this code is triggered, it is important to address it promptly to avoid potential damage to the catalytic converter and ensure optimal engine performance.

5. Can I continue driving my MINI with OBDII code P0058 present?

It is generally not recommended to continue driving with this code active, as it can lead to decreased fuel efficiency and potential damage to other components in the long run.

6. How can I diagnose OBDII code P0058 in my MINI?

Diagnosis typically involves using a scan tool to read the code, testing the oxygen sensor heater circuit, inspecting wiring and connectors, and checking the fuse related to the sensor.

7. What are some repair tips for fixing OBDII code P0058 in a MINI?

Repair tips may include replacing the oxygen sensor, repairing or replacing damaged wiring or connectors, checking and replacing the fuse if necessary, and clearing the code from the ECM.

8. Should I attempt to fix OBDII code P0058 in my MINI myself?

If you have experience with automotive repairs and the necessary tools, you may attempt to fix this code yourself. Otherwise, it is recommended to seek assistance from a qualified mechanic.

9. How much does it typically cost to repair OBDII code P0058 in a MINI?

The cost of repair can vary depending on the specific cause of the issue, but it may range from around $150 to $400, including parts and labor.

10. Can resetting the check engine light resolve OBDII code P0058 in a MINI?

While resetting the check engine light may temporarily turn it off, it will not fix the underlying issue causing the code. It is important to diagnose and address the root cause of the problem.

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