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Engine-Codes – RAM – P0058 RAM

P0058 RAM Code - O2 Sensor 2/2 Heater Circuit High

Quick Answer

The P0058 diagnostic trouble code (DTC) refers to an issue with the O2 sensor 2/2 heater circuit being detected as too high. Common causes include Faulty O2 Sensor: The most common cause of this code is a malfunctioning O2 sensor, specifically the heater circuit within the sensor, Wiring Issues: Damaged or corroded wiring connecting the O2 sensor to the ECM can cause the heater circuit to draw too much current, ECM Malfunction: A malfunctioning engine control module can also trigger this code by incorrectly interpreting the sensor data. 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 RAM indicates O2 Sensor 2/2 Heater Circuit High.
Common causes
Common causes include Faulty O2 Sensor: The most common cause of this code is a malfunctioning O2 sensor, specifically the heater circuit within the sensor, Wiring Issues: Damaged or corroded wiring connecting the O2 sensor to the ECM can cause the heater circuit to draw too much current, ECM Malfunction: A malfunctioning engine control module can also trigger this code by incorrectly interpreting the sensor data.
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 09, 2024
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Code P0058 RAM Description

The P0058 diagnostic trouble code (DTC) refers to an issue with the O2 sensor 2/2 heater circuit being detected as too high. This code typically indicates that the heating element in the oxygen sensor located after the catalytic converter (Bank 2 Sensor 2) is drawing too much current, causing the circuit to be out of specification. The O2 sensor plays a crucial role in monitoring the oxygen levels in the exhaust gases, allowing the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion. The heater circuit in the sensor helps it reach operating temperature quickly for accurate readings.

OBDII Code P0058 RAM - O2 Sensor 2/2 Heater Circuit High
P0058 RAM Code - O2 Sensor 2/2 Heater Circuit High

Common Causes of P0058 RAM

  1. Faulty O2 Sensor: The most common cause of this code is a malfunctioning O2 sensor, specifically the heater circuit within the sensor.
  2. Wiring Issues: Damaged or corroded wiring connecting the O2 sensor to the ECM can cause the heater circuit to draw too much current.
  3. ECM Malfunction: A malfunctioning engine control module can also trigger this code by incorrectly interpreting the sensor data.
  4. Exhaust Leak: An exhaust leak near the O2 sensor can cause the heater circuit to overheat, triggering the code.

Symptoms of P0058 RAM

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the vehicle's dashboard.
  2. Decreased Fuel Efficiency: A malfunctioning O2 sensor can cause the engine to run less efficiently, leading to increased fuel consumption.
  3. Rough Idle: The engine may exhibit rough idling or hesitation when the O2 sensor is not functioning properly.
  4. Failed Emissions Test: A faulty O2 sensor can cause the vehicle to fail emissions tests due to inaccurate readings.

How to Fix P0058 RAM

  1. Diagnose the Issue: Use a scan tool to verify the P0058 code and inspect the O2 sensor 2/2 heater circuit for any visible damage.
  2. Replace O2 Sensor: If the sensor is faulty, replace the O2 sensor with a new one compatible with your vehicle.
  3. Check Wiring: Inspect the wiring harness for any damage or corrosion, repairing or replacing any damaged wires.
  4. Clear Codes: After completing the repair, clear the DTCs from the ECM's memory using a scan tool to reset the check engine light.

Cost to Fix P0058 RAM

The typical repair costs for addressing a P0058 O2 sensor 2/2 heater circuit high code can vary depending on the vehicle make and model, as well as the labor rates in your area. On average, the cost of replacing an O2 sensor ranges from $150 to $400, including parts and labor. Additional costs may be incurred if wiring repairs are necessary. It's recommended to consult with a trusted mechanic or auto repair shop for a more accurate estimate based on your specific vehicle and location. Labor rates at auto repair shops can range from $80 to $150 per hour, with rates varying by location and establishment.

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 RAM Code

1. What does the OBDII code P0058 mean on a RAM vehicle?

P0058 indicates a high voltage issue in the oxygen sensor heater circuit for sensor 2, bank 2, which is typically the downstream sensor on the second cylinder bank.

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

Symptoms may include an illuminated check engine light, increased fuel consumption, poor engine performance, or difficulty passing emissions tests.

3. What causes the P0058 code to appear on a RAM?

Common causes include a faulty oxygen sensor, damaged wiring or connectors in the heater circuit, a blown fuse, or a malfunctioning powertrain control module (PCM).

4. Can I drive my RAM with the P0058 code?

While the vehicle might still be drivable, it's not recommended as it can lead to poor fuel efficiency and potential damage to the catalytic converter over time.

5. How do I diagnose code P0058 on a RAM?

Start by inspecting the oxygen sensor wiring and connectors for damage or corrosion. Use a multimeter to check for continuity in the heater circuit and test the sensor's resistance.

6. How can I fix the P0058 code on my RAM?

Repairs may include replacing the faulty oxygen sensor, repairing damaged wiring or connectors, or replacing a blown fuse in the heater circuit.

7. Is replacing the oxygen sensor always necessary for code P0058?

No, replacement is only necessary if the sensor itself is faulty. The issue could also stem from wiring, connectors, or the PCM.

8. How much does it cost to fix the P0058 code on a RAM?

Repair costs vary, but replacing an oxygen sensor generally costs $150–$300, including parts and labor. Wiring repairs may cost less depending on the extent of the damage.

9. Can a bad PCM cause the P0058 code?

Yes, a malfunctioning PCM can send incorrect signals to the oxygen sensor heater circuit, although this is less common than sensor or wiring issues.

10. How can I prevent the P0058 code from recurring on my RAM?

Regularly inspect and maintain your vehicle's wiring, connectors, and sensors. Address any exhaust system issues promptly to prevent damage to the oxygen sensors.

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