P0058 RAM Code - O2 Sensor 2/2 Heater Circuit High
Quick Answer
Oxygen Sensors (O2S) or Heated Oxygen Sensors (HO2S) need to reach a minimum operating temperature of 750 degrees F to produce an accurate voltage signal. Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2, Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 harness is open shorted, Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 circuit poor electrical connection. 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 Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2, Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 harness is open shorted, Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 circuit poor electrical connection.
- 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.
Code P0058 RAM Description
In order to achieve the require temperature, a heater element is included inside the heated oxygen sensor. The ECM controls the heated oxygen sensor heater element based on signals from the engine coolant temperature and engine load. The ECM controls the heater element circuit by allowing current flow to ground.
The ECM monitors the voltage signal received through the heater element circuit and determines the state of the circuit by comparing the voltage detected with the factory specifications.
What are the Possible Causes of the DTC P0058 RAM?
- Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2
- Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 harness is open shorted
- Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 circuit poor electrical connection
- Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 circuit fuse
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0058 RAM?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0058 RAM code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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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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