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P2058 Jeep Code - Reductant Injection Valve Circuit High Bank 2 Unit 2

Quick Answer

The P2058 diagnostic trouble code (DTC) for Jeep vehicles indicates an issue with the reductant injection valve circuit on bank 2 unit 2. Common causes include Faulty Reductant Injection Valve: The most common cause of a P2058 code is a malfunctioning reductant injection valve, Wiring Issues: Corroded, damaged, or shorted wiring in the reductant injection valve circuit can trigger this code, ECM Malfunction: A faulty Engine Control Module may incorrectly detect a high voltage condition in the reductant injection valve circuit. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2058 Jeep indicates Reductant Injection Valve Circuit High Bank 2 Unit 2.
Common causes
Common causes include Faulty Reductant Injection Valve: The most common cause of a P2058 code is a malfunctioning reductant injection valve, Wiring Issues: Corroded, damaged, or shorted wiring in the reductant injection valve circuit can trigger this code, ECM Malfunction: A faulty Engine Control Module may incorrectly detect a high voltage condition in the reductant injection valve circuit.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P2058 Jeep Description

The P2058 diagnostic trouble code (DTC) for Jeep vehicles indicates an issue with the reductant injection valve circuit on bank 2 unit 2. In modern diesel vehicles, a reductant injection system is used to reduce harmful emissions by injecting a urea-based solution (commonly known as diesel exhaust fluid or DEF) into the exhaust stream. This process helps convert harmful nitrogen oxides (NOx) into harmless nitrogen and water vapor.

OBDII Code P2058 Jeep - Reductant Injection Valve Circuit High Bank 2 Unit 2
P2058 Jeep Code - Reductant Injection Valve Circuit High Bank 2 Unit 2

Common Causes of P2058 Jeep

  1. Faulty Reductant Injection Valve: The most common cause of a P2058 code is a malfunctioning reductant injection valve.
  2. Wiring Issues: Corroded, damaged, or shorted wiring in the reductant injection valve circuit can trigger this code.
  3. ECM Malfunction: A faulty Engine Control Module may incorrectly detect a high voltage condition in the reductant injection valve circuit.
  4. Poor Quality DEF: The use of low-quality or contaminated diesel exhaust fluid can cause issues with the reductant injection system.
  5. Environmental Factors: Extreme temperatures or exposure to moisture can also impact the reductant injection system's performance.

Symptoms of P2058 Jeep

  1. Check Engine Light: The most obvious symptom of a P2058 code is the illumination of the Check Engine Light on the vehicle's dashboard.
  2. Reduced Performance: The vehicle may experience a decrease in performance, including reduced power and acceleration.
  3. Increased Emissions: The vehicle may emit higher levels of harmful emissions due to the malfunctioning reductant injection system.
  4. Poor Fuel Efficiency: A faulty reductant injection valve can lead to decreased fuel efficiency as the engine may not be running optimally.

How to Fix P2058 Jeep

  1. Diagnose the Issue: Begin by using a scan tool to retrieve the DTC and pinpoint the exact cause of the problem.
  2. Inspect Wiring: Check the wiring harness for any signs of damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Test Reductant Injection Valve: Test the reductant injection valve for proper operation and replace if it is found to be faulty.
  4. Check DEF Quality: Verify the quality of the diesel exhaust fluid being used and drain and refill the tank if necessary.
  5. Clear DTC: After completing the repairs, clear the DTC and test drive the vehicle to ensure the code does not return.

Cost to Fix P2058 Jeep

The typical repair costs for addressing a P2058 code on a Jeep vehicle can vary depending on the exact cause of the issue. Parts such as a new reductant injection valve or wiring harness may range from $200 to $500, while labor costs can add an additional $100 to $300. Therefore, the total repair cost for this issue could be in the range of $300 to $800. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to contact local shops for a more accurate estimate.

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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 P2058 Jeep Code

1. What does the OBDII code P2058 mean for a Jeep?

P2058 indicates "Reductant Injection Valve Circuit High Bank 2 Unit 2," meaning the engine control module (ECM) has detected a high voltage issue in the reductant injection valve circuit for Bank 2, Unit 2.

2. What are the symptoms of code P2058 in a Jeep?

Common symptoms include the check engine light turning on, reduced engine performance, increased emissions, poor fuel efficiency, and potential issues with the vehicle's selective catalytic reduction (SCR) system.

3. What causes the P2058 code to appear?

Possible causes include a faulty reductant injection valve, damaged or corroded wiring or connectors in the circuit, a malfunctioning ECM, or a blown fuse related to the reductant system.

4. How do I diagnose the P2058 code on my Jeep?

Start by inspecting the wiring and connectors for damage or corrosion. Use a multimeter to check for proper voltage and continuity in the circuit. If no issues are found, test the reductant injection valve and the ECM for proper functionality.

5. Can I drive my Jeep with the P2058 code?

While the vehicle may still be drivable, it's not recommended. Driving with this code can lead to increased emissions, reduced performance, and potential damage to the SCR system.

6. How is the P2058 code fixed on a Jeep?

Repairs may include replacing the faulty reductant injection valve, repairing or replacing damaged wiring or connectors, replacing a blown fuse, or reprogramming or replacing the ECM if needed.

7. How much does it cost to fix the P2058 code?

The cost depends on the specific issue. Replacing a reductant injection valve can cost $200-$500, while wiring repairs or ECM replacements may cost more depending on labor and parts.

8. What tools are needed to troubleshoot the P2058 code?

Common tools include an OBDII scanner, a multimeter, and basic hand tools for inspecting and repairing wiring or connectors.

9. Is the P2058 code covered under warranty for my Jeep?

It depends on your vehicle's warranty and mileage. Emissions-related components like the reductant system may be covered under federal emissions warranties.

10. Can a software update fix the P2058 code?

In some cases, a software update or reprogramming of the ECM can resolve the issue if it is caused by incorrect calibration or a known bug in the system.

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